Japanese Planet Name Generator

Sei, boshi and sky-word worlds with kanji

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Generate Japanese planet names in romaji with kanji and, for most, a short English gloss: element worlds like Hyosei (氷星, ice), old star names like Subaru, borrowed gods like Tsukuyomi, phrases like Kaze no Hoshi (風の星, world of wind) and colony names like Shin-Izumo.

About Japanese planet names

Japanese names the planets with one character, 星 (sei), after a describing element. Mars is Kasei (火星, fire star), Jupiter is Mokusei (木星, wood star) and Saturn is Dosei (土星, earth star), a set taken from the five elements of Chinese tradition. The same character has a native reading, hoshi, which becomes boshi inside a compound, as in Akaboshi (赤星), a folk name of Antares. Invented worlds can follow either pattern: Hyosei (氷星) for an ice planet, Yukiboshi (雪星) for a softer sound.

The 1,000 names here are in plain Hepburn romaji without macrons, followed by kanji and, where the meaning is clear, a short gloss. About one name in ten ends in sei and fewer in boshi. The rest borrow the way Japanese fiction does: gods and mythic places (Tsukuyomi, Takamagahara), old star names (Subaru, Myojo), poetic sky and weather words (Shinonome, Yunagi), phrases with no Hoshi (Kaze no Hoshi, world of wind), old provinces and Shin colonies (Musashi, Shin-Izumo), numbered worlds (Etchu III) and moons (Gyokuto).

These are ordinary Japanese words and names put to a new use, not official astronomical names. Many already belong to spacecraft, ships or asteroids, Akatsuki, Hayabusa and Ryugu among them. The real planets and Pluto are included and labeled.

How to choose Japanese planet names

  • Match the reading to the tone. Sino-Japanese sei names such as Kongosei and Ankokusei sound official, like entries in a star catalog, while native boshi and no Hoshi names such as Hagureboshi and Shijima no Hoshi sound like folk tales.
  • Name a system as a set. Give the star one borrowed name and number its worlds, as in Etchu III, or spell the order out in Japanese, as in Tone Daisan Wakusei, the third planet of Tone.
  • Check the homophones before you print romaji alone. Suisei is Mercury (水星) and also comet (彗星), and Kasei without its kanji could be several other words, so keep the characters next to any name that matters.
  • Watch the ending boshi. It is hoshi, star, after a sound change, but the same sounds also write 干し, dried: umeboshi is a pickled plum and niboshi a dried sardine, so test a new coinage on a Japanese speaker.
  • Use the moon and small-world names for satellites of a larger world. A pair such as Agyo and Ungyo, the two temple guardians, suits twin moons.

Frequently asked questions

How are planets named in Japanese?

The five planets known since antiquity take one of the five elements plus 星, read sei: Suisei (water), Kinsei (metal), Kasei (fire), Mokusei (wood) and Dosei (earth). Uranus, Neptune and Pluto translate the Western names: Tennosei is the sky king star, Kaiosei the sea king star and Meiosei the star of the king of the underworld. Earth is Chikyu (地球), literally earth globe.

What is the difference between sei, hoshi and boshi?

All three are readings of 星, which covers both star and planet in everyday Japanese. Sei is the Sino-Japanese reading used in the official planet names and in technical words such as wakusei, planet. Hoshi is the native reading, and it turns into boshi when another word comes first, as in Nagareboshi, shooting star, and Mutsuraboshi, an old name of the Pleiades.

Are these real planet names?

Only a few. Suisei, Kinsei, Chikyu, Kasei, Mokusei, Dosei, Tennosei, Kaiosei and Meiosei are the real Japanese names of the planets and Pluto, and the list labels them. Everything else is a Japanese word, phrase, god, province or old star name borrowed as a world's name for fiction, or a new compound built on the sei or boshi pattern, and none of it is an official astronomical name. Several are already in use elsewhere: Akatsuki, Hayabusa and Kaguya are spacecraft, and Yamato and Musashi were battleships.

How reliable are the kanji and glosses?

The glosses translate the characters literally where the meaning is plain, and names of gods and places often get a short label or the kanji alone instead. Long vowels are not marked, so each o in Myojo and the o in Hyosei is long. Before you publish a name, confirm the characters and the reading with a dictionary or a Japanese speaker.

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All 1,000 Japanese planet names

This is the complete list the generator above draws its random batches from, sorted A to Z and grouped by first letter.

Plain text, one name per line.

A: 71 names

  • Abukuma Daini Eisei (阿武隈第二衛星, second satellite of Abukuma)
  • Agano Dairoku Wakusei (阿賀野第六惑星, sixth planet of Agano)
  • Ageha (揚羽, swallowtail butterfly)
  • Agyo (阿形, the open-mouthed guardian)
  • Aizen Myoo (愛染明王, a wisdom king)
  • Akaboshi (赤星, red star, folk name of Antares)
  • Akagane (銅, copper)
  • Akanezora (茜空, madder red sky)
  • Akatsuki (暁, daybreak)
  • Ake no Myojo (明けの明星, Venus at dawn)
  • Akebono (曙, dawn)
  • Akeboshi (明星, morning star)
  • Aki (安芸, old province in today's Hiroshima)
  • Aki no Tsuki (秋の月, autumn moon)

A, continued

  • Akibare (秋晴れ, clear autumn sky)
  • Akitsushima (秋津島, the dragonfly islands)
  • Ama no Iwato (天岩戸, the rock cave of heaven)
  • Ama no Yasukawa (天安河, the river of heaven in myth)
  • Amagiri (天霧, sky mist)
  • Amagumo (雨雲, rain cloud)
  • Amanogawa (天の川, river of heaven, the Milky Way)
  • Amaterasu (天照, the sun goddess)
  • Amatsukami (天津神, the gods of heaven)
  • Amatsukaze (天津風, wind of heaven)
  • Amatsumikaboshi (天津甕星, the rebel star god)
  • Ame no Hohi (天穂日)
  • Ame no Kagaseo (天香香背男, the star god)
  • Ame no Koyane (天児屋)

A, continued

  • Ame no Minakanushi (天之御中主, lord of the center of heaven)
  • Ame no Murakumo (天叢雲, gathering clouds of heaven)
  • Ame no Nuboko (天沼矛, the jeweled spear of creation)
  • Ame no Tajikarao (天手力男, the strong-handed god)
  • Ame no Tokotachi (天之常立)
  • Ame no Torifune (天鳥船, the heavenly bird ship)
  • Ame no Ukihashi (天の浮橋, the floating bridge of heaven)
  • Ame no Uzume (天鈿女, goddess of dawn and dance)
  • Ame no Wakahiko (天稚彦, the young prince of heaven)
  • Amefuri (畢, rainfall, a lunar mansion)
  • Ametsuchi (天地, heaven and earth)
  • Amida (阿弥陀, buddha of infinite light)
  • Ankokusei (暗黒星, darkness)
  • Aoba (青葉, green leaves)

A, continued

  • Aoboshi (青星, blue star, folk name of Sirius)
  • Aoki Hoshi (青き星, the blue planet)
  • Aozora (青空, blue sky)
  • Aranami (荒波, raging waves)
  • Arare (霰, hail pellets)
  • Arashi (嵐, storm)
  • Arashi no Hoshi (嵐の星, the storm planet)
  • Araumi (荒海, rough sea)
  • Arechi (荒地, wasteland)
  • Ariake (有明, the moon still up at dawn)
  • Ariake no Tsuki (有明の月, the daybreak moon)
  • Asaborake (朝ぼらけ, the paling of dawn)
  • Asaboshi (朝星, morning)
  • Asagao (朝顔, morning glory)

A, continued

  • Asagi (浅葱, pale blue-green)
  • Asagiri (朝霧, morning mist)
  • Asahi (朝日, morning sun)
  • Asama IX (浅間)
  • Asanagi (朝凪, morning calm)
  • Asatsuyu (朝露, morning dew)
  • Asayake (朝焼け, morning glow)
  • Ashihara no Nakatsukuni (葦原中国, the land of reed plains)
  • Ashura (阿修羅, the warring demigods)
  • Aso II (阿蘇)
  • Atago VI (愛宕)
  • Awaji (淡路, old island province)
  • Awayuki (淡雪, light snow)
  • Ayame (菖蒲, iris)
  • Azuchi II (安土)

B: 18 names

  • Baku (獏, the eater of dreams)
  • Bankoku (万国, all nations)
  • Banri (万里, ten thousand leagues)
  • Bansei (伴星, companion star)
  • Benzaiten (弁財天, goddess of music and water)
  • Bettenchi (別天地, a world apart)
  • Bishamonten (毘沙門天, guardian of the north)
  • Bitchu III (備中)
  • Biwa IV (琵琶)

B, continued

  • Bizen (備前, old province in today's Okayama)
  • Bofusei (暴風星, violent wind)
  • Bokoku (母国, the mother country)
  • Bokyakusei (忘却星, oblivion)
  • Bonten (梵天, Brahma)
  • Bosei (母星, mother star, a homeworld)
  • Buzen IX (豊前)
  • Byakko (白虎, white tiger of the west)
  • Byakuyasei (白夜星, white night)

C: 9 names

  • Chichi naru Sora (父なる空, father sky)
  • Chidori (千鳥, plover)
  • Chikai no Hoshi (誓いの星, star of the oath)
  • Chikugo IV (筑後)
  • Chikuma Dainana Wakusei (千曲第七惑星, seventh planet of Chikuma)
  • Chikuzen (筑前, old province in today's Fukuoka)
  • Chikyu (地球, Earth)
  • Chinsei (鎮星, classical name of Saturn)
  • Chiyo (千代, a thousand ages)

D: 7 names

  • Daichi (大地, the great earth)
  • Daikan (大寒, the great cold)
  • Daikokuten (大黒天, god of wealth)
  • Dainichi (大日, great sun, the cosmic buddha)
  • Dewa (出羽, old province in today's Yamagata and Akita)
  • Dosei (土星, Saturn)
  • Dosojin (道祖神, guardian of the roads)

E: 11 names

  • Ebisu (恵比寿, god of fishers and luck)
  • Echigo (越後, old province in today's Niigata)
  • Eiensei (永遠星, eternity)
  • Eikyu Todo (永久凍土, permafrost)
  • Ekie (胃, a lunar mansion)
  • Enbudai (閻浮提, the continent of humankind)
  • Engetsu (円月, round moon)
  • Enji (臙脂, dark red)
  • Enma (閻魔, judge of the dead)
  • Enrai (遠雷, distant thunder)
  • Etchu III (越中)

F: 27 names

  • Fubuki (吹雪, blizzard)
  • Fudaraku (補陀落, the island paradise of Kannon)
  • Fudo Myoo (不動明王, the immovable wisdom king)
  • Fugen (普賢, a bodhisattva)
  • Fuji I (富士)
  • Fujin (風神, the wind god)
  • Fujiwara II (藤原)
  • Fukemachizuki (更待月, twentieth night, the late riser)
  • Fukuro (梟, owl)
  • Fukurokuju (福禄寿, god of long life)
  • Fumizuki (文月, the seventh month)
  • Fumo (不毛, barren)
  • Funaboshi (船星, boat, folk name of the Dipper)

F, continued

  • Funen (噴煙, volcanic plume)
  • Funka (噴火, eruption)
  • Furin Kazan (風林火山, wind, forest, fire, mountain)
  • Furuboshi (古星, old)
  • Furusato (故郷, the old home)
  • Fuso (扶桑, land of the eastern sun tree)
  • Futaba (双葉, the first two leaves)
  • Futagoboshi (双子星, twins)
  • Futatsuboshi (二つ星, folk name of Castor and Pollux)
  • Futen (風天, the wind deva)
  • Futodama (太玉)
  • Futsunushi (経津主, a sword god)
  • Fuyu no Tsuki (冬の月, winter moon)
  • Fuyubare (冬晴れ, clear winter day)

G: 25 names

  • Gansei (岩星, rock)
  • Gareki (瓦礫, rubble)
  • Gatten (月天, the moon deva)
  • Gekai (下界, the world below)
  • Gekka (月下, beneath the moon)
  • Gekkosei (月光星, moonlight)
  • Gekkyu (月宮, the moon palace)
  • Genbu (玄武, black tortoise of the north)
  • Gengetsu (弦月, bowstring)
  • Genjiboshi (源氏星, folk name of Rigel)
  • Geshi (夏至, summer solstice)
  • Gesshoku (月食, lunar eclipse)

G, continued

  • Getsurei (月齢, the age of the moon)
  • Ginga (銀河, silver river, the galaxy)
  • Ginrei (銀嶺, snow-silvered ridge)
  • Ginsei (銀星, silver)
  • Ginsekai (銀世界, a world silvered with snow)
  • Goka (業火, hellfire)
  • Gokkansei (極寒星, extreme cold)
  • Gokuraku (極楽, the land of bliss)
  • Gunjosei (群青星, ultramarine)
  • Guren (紅蓮, crimson lotus, the red of flames)
  • Gyokusei (玉星, jewel)
  • Gyokuto (玉兎, the jade rabbit)
  • Gyosei (暁星, star at daybreak)

H: 104 names

  • Hachiman (八幡, god of warriors)
  • Hagane no Hoshi (鋼の星, the steel planet)
  • Hagi (萩, bush clover)
  • Hagoromo (羽衣, the feather robe of heaven)
  • Hagureboshi (逸れ星, the stray)
  • Haha naru Daichi (母なる大地, mother earth)
  • Haha naru Hoshi (母なる星, the mother star)
  • Hai no Hoshi (灰の星, the ash planet)
  • Haikyosei (廃墟星, ruins)
  • Hajimari no Chi (始まりの地, the land of beginnings)
  • Hajimari no Hoshi (始まりの星, where it began)
  • Hakone V (箱根)
  • Hakucho (白鳥, swan)
  • Hakuginsei (白銀星, white silver)

H, continued

  • Hakugyoku (白玉, white jade)
  • Hakumeisei (薄明星, twilight)
  • Hakusha Seisho (白砂青松, white sand and green pines)
  • Hana no Hoshi (花の星, world of flowers)
  • Hanabie (花冷え, blossom chill)
  • Hanaboshi (花星, flower)
  • Hanafubuki (花吹雪, blizzard of petals)
  • Hanagumori (花曇り, blossom haze)
  • Hanazono (花園, flower garden)
  • Hangetsu (半月, half moon)
  • Haniyasu (埴安, deity of clay)
  • Hari (玻璃, crystal glass)
  • Harima (播磨, old province in today's Hyogo)
  • Haruka naru Kokyo (遥かなる故郷, the faraway home)
  • Harukaze (春風, spring wind)

H, continued

  • Harusame (春雨, spring rain)
  • Hasu (蓮, lotus)
  • Hatsui (室, a lunar mansion)
  • Hatsushimo (初霜, first frost)
  • Hatsuyuki (初雪, first snow)
  • Hatsuzuki (初月, the first crescent)
  • Hayabusa (隼, peregrine falcon)
  • Hayate (疾風, swift wind)
  • Hazuki (葉月, the eighth month)
  • Heijo III (平城)
  • Heikeboshi (平家星, folk name of Betelgeuse)
  • Hekisei (碧星, blue-green)
  • Henkyosei (辺境星, frontier)
  • Hibari (雲雀, skylark)
  • Hibashira (火柱, pillar of fire)

H, continued

  • Hida (飛騨, old province in the Gifu mountains)
  • Hidamari (陽だまり, a patch of sun)
  • Hiei IV (比叡)
  • Higan (彼岸, the far shore)
  • Higanbana (彼岸花, red spider lily)
  • Higo (肥後, old province in today's Kumamoto)
  • Higurashi (蜩, evening cicada)
  • Hiiro (緋色, scarlet)
  • Hikari no Hoshi (光の星, star of light)
  • Hikoboshi (彦星, Altair)
  • Hikyo (秘境, unexplored land)
  • Himawari (向日葵, sunflower)
  • Hina (雛, chick)
  • Hinode (日の出, sunrise)
  • Hinoiri (日の入り, sunset)

H, continued

  • Hinoki (檜, cypress)
  • Hinoko (火の粉, spark)
  • Hinomoto (日の本, origin of the sun)
  • Hiruko (蛭子, the leech child)
  • Hisame (氷雨, chill rain)
  • Hishakuboshi (柄杓星, ladle, the Dipper)
  • Hisuisei (翡翠星, jade)
  • Hitachi (常陸, old province in today's Ibaraki)
  • Hitokakera (一欠片, one fragment)
  • Hitoshizuku (一雫, one drop)
  • Hitotsuboshi (一つ星, the lone star)
  • Hitotsubu (一粒, a single grain)
  • Hizashi (日差し, sunbeam)
  • Hoderi (火照, fire shine)
  • Hoju (宝珠, the wish-granting jewel)

H, continued

  • Hoki II (伯耆)
  • Hokiboshi (箒星, broom star, a comet)
  • Hokkyokusei (北極星, Polaris)
  • Hokuriku IV (北陸)
  • Hokushin (北辰, the Pole Star)
  • Hokuto (北斗, the Northern Dipper)
  • Hokuto Shichisei (北斗七星, seven stars of the Dipper)
  • Homura (焔, flame)
  • Hongoku (本国, the home country)
  • Hono no Hoshi (炎の星, world of flame)
  • Hoo (鳳凰, the phoenix)
  • Hoori (火遠理, fire fade)
  • Horai (蓬莱, the isle of immortals)
  • Hoshiakari (星明かり, starlight)
  • Hoshikuzu (星屑, stardust)

H, continued

  • Hoshizora (星空, starry sky)
  • Hoshizukiyo (星月夜, a night bright with stars)
  • Hotaruboshi (蛍星, firefly)
  • Hotei (布袋, the laughing monk)
  • Hototogisu (時鳥, lesser cuckoo)
  • Hyakka Ryoran (百花繚乱, a hundred flowers in bloom)
  • Hyobaku (氷瀑, frozen waterfall)
  • Hyogasei (氷河星, glacier)
  • Hyogen (氷原, ice field)
  • Hyoheki (氷壁, ice wall)
  • Hyokai (氷海, frozen sea)
  • Hyoketsu (氷結, freezing over)
  • Hyosei (氷星, ice)
  • Hyozan (氷山, iceberg)
  • Hyuga (日向, old province in today's Miyazaki)

I: 31 names

  • Ibara no Hoshi (茨の星, planet of thorns)
  • Ichibanboshi (一番星, first star of the evening)
  • Ichigo Ichie (一期一会, one meeting in a lifetime)
  • Ichikishimahime (市杵島姫, a Munakata sea goddess)
  • Idaten (韋駄天, the swift runner)
  • Iga IV (伊賀)
  • Ikariboshi (錨星, anchor, folk name of Cassiopeia)
  • Ikazuchi (雷, thunder)
  • Iki (壱岐, old island province)
  • Imachizuki (居待月, eighteenth night, awaited sitting)

I, continued

  • Inari (稲荷, god of rice)
  • Inazuma (稲妻, lightning)
  • Inochi no Hoshi (命の星, the living planet)
  • Inori no Hoshi (祈りの星, star of prayer)
  • Inukaiboshi (犬飼星, dog keeper, old name of Altair)
  • Inuwashi (犬鷲, golden eagle)
  • Irie (入江, inlet)
  • Ise (伊勢, old province in today's Mie)
  • Isekai (異世界, another world)
  • Ishikoridome (石凝姥, maker of the sacred mirror)

I, continued

  • Itezora (凍て空, frozen sky)
  • Itsukushima II (厳島)
  • Itsutsuboshi (五つ星, five stars)
  • Iwanagahime (磐長姫, the rock princess)
  • Iwashigumo (鰯雲, mackerel sky)
  • Iyo (伊予, old province in today's Ehime)
  • Izanagi (伊邪那岐, the creator father)
  • Izanami (伊邪那美, the creator mother)
  • Izayoi (十六夜, the sixteenth night)
  • Izu II (伊豆)
  • Izumo (出雲, old province in today's Shimane)

J: 13 names

  • Jigoku (地獄, hell)
  • Jikokuten (持国天, guardian of the east)
  • Jiten (地天, the earth deva)
  • Jizo (地蔵, guardian of travelers)
  • Jodo (浄土, the pure land)
  • Jogen (上弦, the waxing half)
  • Joruri (浄瑠璃, pure lapis lazuli)
  • Jugoya (十五夜, the fifteenth night)
  • Juhyo (樹氷, trees cased in frost)
  • Jukaisei (樹海星, sea of trees)
  • Jurojin (寿老人, the old man of longevity)
  • Jusanya (十三夜, the thirteenth night)
  • Jusha (従者, retainer)

K: 149 names

  • Kacho Fugetsu (花鳥風月, flowers, birds, wind and moon)
  • Kaen (火炎, blaze)
  • Kaga (加賀, old province in today's Ishikawa)
  • Kagami no Hoshi (鏡の星, the mirror planet)
  • Kagaribi (篝火, watch fire)
  • Kage no Hoshi (影の星, the shadow planet)
  • Kagemusha (影武者, the shadow double)
  • Kagen (下弦, the waning half)
  • Kagero (陽炎, heat shimmer)
  • Kagetsu (花月, blossoms and moon)
  • Kagutsuchi (迦具土, the fire god)
  • Kaguya (輝夜, the moon princess)
  • Kai (甲斐, old province in today's Yamanashi)
  • Kaiki (皆既, totality)

K, continued

  • Kaiko (海溝, ocean trench)
  • Kaikyo (海峡, strait)
  • Kaiosei (海王星, Neptune)
  • Kaitakusei (開拓星, pioneering)
  • Kaiyosei (海洋星, ocean)
  • Kaji no Hoshi (鍛冶の星, the smiths' planet)
  • Kajiboshi (舵星, rudder, folk name of the Dipper)
  • Kakera (欠片, fragment)
  • Kako (火口, crater)
  • Kakuriyo (幽世, the hidden world)
  • Kamakura IV (鎌倉)
  • Kami no Hoshi (神の星, star of the gods)
  • Kamimusubi (神産巣日, a creator god)
  • Kamo Daiyon Eisei (鴨第四衛星, fourth satellite of Kamo)
  • Kamome (鴎, gull)

K, continued

  • Kamoshika (羚羊, serow)
  • Kanayamahiko (金山彦, god of mines)
  • Kanbatsu (旱魃, drought)
  • Kangetsu (寒月, cold winter moon)
  • Kangokusei (監獄星, prison)
  • Kannazuki (神無月, the tenth month)
  • Kannon (観音, bodhisattva of mercy)
  • Kanpa (寒波, cold wave)
  • Kanro (寒露, cold dew)
  • Karamatsu (唐松, larch)
  • Karasuki (唐鋤, plow, old name of Orion's Belt)
  • Kareno (枯野, withered field)
  • Kariudo no Hoshi (狩人の星, the hunters' planet)
  • Karura (迦楼羅, the garuda)
  • Karyu (火竜, fire dragon)

K, continued

  • Kasei (火星, Mars)
  • Kasumi (霞, spring haze)
  • Katen (火天, the fire deva)
  • Katsura (桂, the tree that grows on the moon)
  • Katsuraotoko (桂男, the man in the moon)
  • Kawachi (河内, old province in today's Osaka)
  • Kawasemi (川蝉, kingfisher)
  • Kawatare (彼は誰, the dim hour before dawn)
  • Kayanohime (鹿屋野比売, goddess of the grasslands)
  • Kazahana (風花, snow flurries on the wind)
  • Kazamachi (風待ち, waiting for the wind)
  • Kazanbai (火山灰, volcanic ash)
  • Kazansei (火山星, volcano)
  • Kaze no Hoshi (風の星, world of wind)
  • Kazeboshi (風星, wind)

K, continued

  • Keichitsu (啓蟄, when the insects wake)
  • Keikoku (熒惑, classical name of Mars)
  • Kemono no Hoshi (獣の星, world of beasts)
  • Kengyu (牽牛, the oxherd, Altair)
  • Kenkon (乾坤, heaven and earth in the classical pairing)
  • Keshi (芥子, poppy seed)
  • Kesshosei (結晶星, crystal)
  • Keyaki (欅, zelkova)
  • Kibo no Hoshi (希望の星, star of hope)
  • Kii (紀伊, old province in today's Wakayama)
  • Kikyo (桔梗, bellflower)
  • Kindansei (禁断星, forbidden)
  • Kinkan (金環, golden ring)
  • Kinsei (金星, Venus)
  • Kintaro (金太郎, the golden boy)

K, continued

  • Kinu Daisan Eisei (鬼怒第三衛星, third satellite of Kinu)
  • Kiri no Hoshi (霧の星, world of fog)
  • Kirin (麒麟, the qilin)
  • Kirisame (霧雨, drizzle)
  • Kirishima IV (霧島)
  • Kisaragi (如月, the second month)
  • Kiseki no Hoshi (奇跡の星, the miracle planet)
  • Kiso Daini Wakusei (木曽第二惑星, second planet of Kiso)
  • Kisshoten (吉祥天, goddess of fortune)
  • Kitaboshi (北星, north)
  • Kitakami Daiichi Wakusei (北上第一惑星, first planet of Kitakami)
  • Kitakaze (北風, north wind)
  • Kitsunebi (狐火, fox fire)
  • Koboshi (小星, small)
  • Kobune (小舟, little boat)

K, continued

  • Kochi (東風, east wind of spring)
  • Kodama no Hoshi (木霊の星, planet of echoes)
  • Koekisei (交易星, trade)
  • Kogarashi (木枯らし, withering winter wind)
  • Kogetsu (孤月, the solitary moon)
  • Kogyoku (紅玉, ruby)
  • Kohakusei (琥珀星, amber)
  • Koharu (小春, the mild spell of early winter)
  • Koishi (小石, pebble)
  • Kojin (荒神, god of the hearth)
  • Kokkan (酷寒, severe cold)
  • Koku (虚空, the empty sky)
  • Kokuten (黒点, sunspot)
  • Kokuu (穀雨, grain rain)
  • Kokuyosei (黒曜星, obsidian)

K, continued

  • Kokuzo (虚空蔵, bodhisattva of boundless space)
  • Komainu (狛犬, the shrine guardian dog)
  • Komokuten (広目天, guardian of the west)
  • Komorebi (木漏れ日, sunlight through leaves)
  • Konayuki (粉雪, powder snow)
  • Kongosei (金剛星, adamant)
  • Konjo (紺青, Prussian blue)
  • Konohanasakuya (木花咲耶, the blossom princess)
  • Konpekisei (紺碧星, deep blue)
  • Konpira (金毘羅, guardian of seafarers)
  • Kori no Hoshi (氷の星, world of ice)
  • Kosa (黄砂, yellow dust)
  • Kotetsusei (鋼鉄星, steel)
  • Kotodama (言霊, the spirit in words)
  • Kotori (小鳥, little bird)

K, continued

  • Kotoshironushi (事代主)
  • Kotsubu (小粒, small grain)
  • Koun Ryusui (行雲流水, drifting clouds, flowing water)
  • Koyasei (荒野星, wilderness)
  • Kuchiba (朽葉, fallen leaf brown)
  • Kujaku (孔雀, peacock)
  • Kujiraboshi (鯨星, whale)
  • Kukunochi (久久能智, god of trees)
  • Kukurihime (菊理媛)
  • Kuma Daini Wakusei (球磨第二惑星, second planet of Kuma)
  • Kumano VII (熊野)
  • Kuni no Tokotachi (国之常立)
  • Kunitsukami (国津神, the gods of the land)
  • Kuon (久遠, time without end)
  • Kurama II (鞍馬)

K, continued

  • Kuraokami (闇龗, dragon god of rain)
  • Kurenai no Hoshi (紅の星, the crimson star)
  • Kuroboshi (黒星, black star, also a loss in sumo)
  • Kuroshio (黒潮, the black current)
  • Kusanagi (草薙, the grass-cutting sword)
  • Kushinadahime (奇稲田姫, the rice field princess)
  • Kusunoki (楠, camphor tree)
  • Kuzuryu Daigo Wakusei (九頭竜第五惑星, fifth planet of Kuzuryu)
  • Kyakusei (客星, guest star, an old word for a nova)
  • Kyodaiboshi (兄弟星, siblings)
  • Kyodo (郷土, native soil)
  • Kyoka Suigetsu (鏡花水月, mirror flower, water moon)
  • Kyokkosei (極光星, aurora)
  • Kyokuya (極夜, polar night)
  • Kyomu (虚無, nothingness)

M: 69 names

  • Maboroshi no Hoshi (幻の星, the phantom planet)
  • Madoiboshi (惑い星, the wanderer, a native word for planet)
  • Makai (魔界, the demon realm)
  • Makyo (魔境, haunted wilds)
  • Mame (豆, bean)
  • Mangetsu (満月, full moon)
  • Marishiten (摩利支天, goddess of light)
  • Masei (魔星, demon star)
  • Matsukaze (松風, wind in the pines)
  • Matsushima VI (松島)
  • Mayonaka (真夜中, dead of night)
  • Mayu (繭, cocoon)
  • Meigetsu (名月, harvest moon)

M, continued

  • Meikai (冥界, the underworld)
  • Meikyo Shisui (明鏡止水, clear mirror, still water)
  • Meiosei (冥王星, Pluto)
  • Menosei (瑪瑙星, agate)
  • Meotoboshi (夫婦星, husband and wife)
  • Mezame no Hoshi (目覚めの星, star of awakening)
  • Midori no Daichi (緑の大地, the green land)
  • Midori no Hoshi (緑の星, the green planet)
  • Mijin (微塵, a speck)
  • Mikawa (三河, old province in today's eastern Aichi)
  • Mikazuki (三日月, crescent)
  • Mimasaka VII (美作)
  • Minami Juji (南十字, the Southern Cross)
  • Minamiboshi (南星, south)

M, continued

  • Minamo no Tsuki (水面の月, moon on the water)
  • Minasoko (水底, the bottom of the water)
  • Minato (港, harbor)
  • Minazuki (水無月, the sixth month)
  • Mino (美濃, old province in today's Gifu)
  • Mio (澪, a channel through the shallows)
  • Mirai Eigo (未来永劫, for all time to come)
  • Miroku (弥勒, the buddha to come)
  • Misago (鶚, osprey)
  • Mitsuboshi (三つ星, three stars, Orion's Belt)
  • Mitsugoboshi (三つ子星, triplets)
  • Mitsurinsei (密林星, jungle)
  • Miyuki (深雪, deep snow)
  • Mizore (霙, sleet)

M, continued

  • Mizu no Hoshi (水の星, the water planet)
  • Mizuhanome (罔象女, a water goddess)
  • Mizuho no Kuni (瑞穂の国, land of fresh rice ears)
  • Mochizuki (望月, full moon)
  • Moegi (萌黄, spring green)
  • Mogami Daigo Wakusei (最上第五惑星, fifth planet of Mogami)
  • Mokusei (木星, Jupiter)
  • Momiji (紅葉, autumn maple)
  • Momotaro (桃太郎, the peach boy)
  • Momoyama III (桃山)
  • Monju (文殊, bodhisattva of wisdom)
  • Mori no Hoshi (森の星, the forest planet)
  • Mugen Hoyo (夢幻泡影, dream, phantom, bubble, shadow)
  • Mugensei (無限星, the infinite)

M, continued

  • Mugetsu (無月, the unseen moon)
  • Mugiboshi (麦星, barley star, folk name of Arcturus)
  • Mujinsei (無人星, uninhabited)
  • Mukaikaze (向かい風, headwind)
  • Murakumo (叢雲, gathering clouds)
  • Murasaki (紫, purple)
  • Murasame (村雨, passing shower)
  • Muromachi VIII (室町)
  • Musashi (武蔵, old province in today's Tokyo and Saitama)
  • Mutsu (陸奥, old province of the far northeast)
  • Mutsuki (睦月, the first month)
  • Mutsuraboshi (六連星, six in a row, the Pleiades)
  • Myojo (明星, bright star, Venus)
  • Myoken (妙見, bodhisattva of the Pole Star)

N: 38 names

  • Nada (灘, rough open water)
  • Nadeshiko (撫子, fringed pink)
  • Nagaoka V (長岡)
  • Nagareboshi (流れ星, shooting star)
  • Nagato (長門, old province in today's Yamaguchi)
  • Nagatsuki (長月, the ninth month)
  • Nageki no Hoshi (嘆きの星, star of lament)
  • Nagi (凪, calm)
  • Nagisa (渚, the water's edge)
  • Nagoriyuki (名残雪, snow that lingers into spring)
  • Naka Daini Eisei (那珂第二衛星, second satellite of Naka)
  • Namame (壁, a lunar mansion)

N, continued

  • Namiboshi (波星, wave)
  • Namiji (波路, the sea road)
  • Nanatsuboshi (七つ星, seven stars, the Dipper)
  • Nankai V (南海)
  • Nanto Rokusei (南斗六星, six stars of the Southern Dipper)
  • Naraku (奈落, the abyss)
  • Ne no Kuni (根の国, the root land)
  • Nemachizuki (寝待月, nineteenth night, awaited lying down)
  • Nemuri no Hoshi (眠りの星, the sleeping planet)
  • Nenohoshi (子の星, folk name of the Pole Star)
  • Nessa (熱砂, burning sand)
  • Nibiiro (鈍色, dull gray)
  • Nigemizu (逃げ水, the mirage of water that flees)

N, continued

  • Niizuki (新月, new moon in the native reading)
  • Niji (虹, rainbow)
  • Nikko III (日光)
  • Ninigi (邇邇芸, the heavenly grandson)
  • Nio (仁王, the two guardian kings)
  • Nisshoku (日食, solar eclipse)
  • Nitten (日天, the sun deva)
  • Nobi (野火, wildfire)
  • Noroshi (狼煙, signal smoke)
  • Noto (能登, old province on the Noto peninsula)
  • Nowaki (野分, autumn tempest)
  • Nue (鵺, the chimera of the night)
  • Nyudogumo (入道雲, thunderhead)

O: 33 names

  • Oboro (朧, haze)
  • Oborozuki (朧月, hazy moon)
  • Oboshi (大星, great)
  • Ogonsei (黄金星, gold)
  • Ogyoku (黄玉, topaz)
  • Oi Daisan Eisei (大井第三衛星, third satellite of Oi)
  • Oikaze (追風, tailwind)
  • Oka Ranman (桜花爛漫, cherry blossoms in full glory)
  • Okami no Hoshi (狼の星, the wolves' planet)
  • Oki (隠岐, old island province)
  • Okibi (熾火, glowing embers)

O, continued

  • Okitsunami (沖つ波, waves of the offing)
  • Okuninushi (大国主, master of the great land)
  • Omi (近江, old province around Lake Biwa)
  • Omoikane (思兼, god of wisdom)
  • Omononushi (大物主)
  • Onamuchi (大己貴)
  • Oni no Hoshi (鬼の星, the ogres' star)
  • Onibi (鬼火, will-o'-the-wisp)
  • Onogoro (淤能碁呂, the first island of myth)
  • Orihime (織姫, weaver princess, Vega)
  • Oroshi (颪, wind down the mountain)

O, continued

  • Otohime (乙姫, princess of the dragon palace)
  • Otomo (お供, attendant)
  • Otori (鳳, the great bird)
  • Otsu VI (大津)
  • Owari (尾張, old province in today's western Aichi)
  • Owari no Hoshi (終わりの星, where it ends)
  • Oyakoboshi (親子星, parent and child)
  • Oyamakui (大山咋)
  • Oyamatsumi (大山祇, the mountain god)
  • Oyashima (大八洲, the eight great islands)
  • Oyashio (親潮, the parent current)

R: 35 names

  • Raicho (雷鳥, thunder bird, the ptarmigan)
  • Raijin (雷神, the thunder god)
  • Raiko (雷光, lightning flash)
  • Raimeisei (雷鳴星, thunderclap)
  • Raisei (雷星, thunder)
  • Raiunsei (雷雲星, thundercloud)
  • Rakudo (楽土, land of ease)
  • Rakuensei (楽園星, paradise)
  • Rakujitsu (落日, the setting sun)
  • Rasetsu (羅刹, a rakshasa)
  • Reihosei (霊峰星, sacred peak)

R, continued

  • Reikai (霊界, the spirit realm)
  • Reimeisei (黎明星, daybreak)
  • Rekka (烈火, raging fire)
  • Rengoku (煉獄, purgatory)
  • Reppusei (烈風星, gale)
  • Rikka (六花, six petals, a snowflake)
  • Rikugo (六合, the six directions, the whole cosmos)
  • Risokyo (理想郷, utopia)
  • Risshu (立秋, the first day of autumn)
  • Risshun (立春, the first day of spring)
  • Ritto (立冬, the first day of winter)
  • Rojinsei (老人星, old man star, Canopus)

R, continued

  • Rokusho (緑青, verdigris)
  • Rukeisei (流刑星, penal exile)
  • Rurisei (瑠璃星, lapis lazuli)
  • Ryokugyoku (緑玉, emerald)
  • Ryokusei (緑星, green)
  • Ryoshi no Hoshi (漁師の星, the fishers' planet)
  • Ryu no Hoshi (竜の星, the dragon's star)
  • Ryugu (竜宮, the dragon palace)
  • Ryuhyo (流氷, drift ice)
  • Ryujin (龍神, the dragon god)
  • Ryuryoku Kako (柳緑花紅, willows green, flowers red)
  • Ryusa (流砂, quicksand)

S: 162 names

  • Sabakusei (砂漠星, desert)
  • Sabi no Hoshi (錆の星, the rust planet)
  • Sado (佐渡, old island province)
  • Sagami (相模, old province in today's Kanagawa)
  • Sagiri (狭霧, mist)
  • Saihate (最果て, the farthest end)
  • Saikai VII (西海)
  • Saisei (歳星, classical name of Jupiter)
  • Sajin (砂塵, dust cloud)
  • Sakamasuboshi (酒桝星, sake measure, folk name of Orion)
  • Sakura no Hoshi (桜の星, the cherry blossom planet)
  • Sakyu (砂丘, dune)
  • Samidare (五月雨, early summer rain)
  • Sangosei (珊瑚星, coral)

S, continued

  • Sankan Shion (三寒四温, three cold days, four warm)
  • Sanshi Suimei (山紫水明, purple hills and clear waters)
  • Sanuki (讃岐, old province in today's Kagawa)
  • Sanzu (三途, the river of the dead)
  • Sarutahiko (猿田彦, the guide at the crossroads)
  • Sasameyuki (細雪, fine snow)
  • Satsuki (皐月, the fifth month)
  • Satsuma (薩摩, old province in today's Kagoshima)
  • Sazanami (漣, ripples)
  • Sazareishi (細石, small stones)
  • Seichi (聖地, sacred ground)
  • Seidosei (青銅星, bronze)
  • Seigyoku (青玉, sapphire)
  • Seiko Udoku (晴耕雨読, plow in the sun, read in the rain)
  • Seimei (清明, clear and bright)

S, continued

  • Seiryu (青龍, azure dragon of the east)
  • Seiten Hakujitsu (青天白日, blue sky and bright sun)
  • Sendai Daigo Eisei (川内第五衛星, fifth satellite of Sendai)
  • Senkyo (仙境, the land of immortals)
  • Sennin (仙人, immortal hermit)
  • Senpusei (旋風星, whirlwind)
  • Senri (千里, a thousand leagues)
  • Senshi Banko (千紫万紅, a thousand purples, ten thousand reds)
  • Senzai Ichigu (千載一遇, one chance in a thousand years)
  • Seoritsuhime (瀬織津姫, goddess of the rapids)
  • Seto VIII (瀬戸)
  • Setsugen (雪原, snowfield)
  • Setsugetsuka (雪月花, snow, moon and flowers)
  • Shachi (鯱, orca)
  • Shakunetsusei (灼熱星, scorching heat)

S, continued

  • Shigan (此岸, this shore)
  • Shigure (時雨, late autumn shower)
  • Shijima no Hoshi (静寂の星, the silent planet)
  • Shikai (四海, the four seas)
  • Shike (時化, storm at sea)
  • Shikishima (敷島, an old poetic name of Japan)
  • Shikkoku (漆黒, lacquer black)
  • Shimaboshi (島星, island)
  • Shimanto Daiichi Wakusei (四万十第一惑星, first planet of Shimanto)
  • Shimobashira (霜柱, frost needles)
  • Shimotsuke V (下野)
  • Shimotsuki (霜月, the frost month)
  • Shin-Akitsushima (新秋津島, New Akitsushima)
  • Shin-Asuka (新飛鳥, New Asuka)

S, continued

  • Shin-Bingo (新備後, New Bingo)
  • Shin-Bungo (新豊後, New Bungo)
  • Shin-Chikyu (新地球, New Earth)
  • Shin-Echizen (新越前, New Echizen)
  • Shin-Edo (新江戸, New Edo)
  • Shin-Ezo (新蝦夷, New Ezo)
  • Shin-Fuso (新扶桑, New Fuso)
  • Shin-Heian (新平安, New Heian)
  • Shin-Hizen (新肥前, New Hizen)
  • Shin-Horai (新蓬莱, New Horai)
  • Shin-Inaba (新因幡, New Inaba)
  • Shin-Iwami (新石見, New Iwami)
  • Shin-Izumo (新出雲, New Izumo)
  • Shin-Kazusa (新上総, New Kazusa)
  • Shin-Kozuke (新上野, New Kozuke)

S, continued

  • Shin-Mizuho (新瑞穂, New Mizuho)
  • Shin-Mutsu (新陸奥, New Mutsu)
  • Shin-Naniwa (新浪速, New Naniwa)
  • Shin-Nara (新奈良, New Nara)
  • Shin-Nihon (新日本, New Japan)
  • Shin-Osumi (新大隅, New Osumi)
  • Shin-Ryukyu (新琉球, New Ryukyu)
  • Shin-Settsu (新摂津, New Settsu)
  • Shin-Shimosa (新下総, New Shimosa)
  • Shin-Suo (新周防, New Suo)
  • Shin-Tajima (新但馬, New Tajima)
  • Shin-Takamagahara (新高天原, New Takamagahara)
  • Shin-Tanba (新丹波, New Tanba)
  • Shin-Tokoyo (新常世, New Tokoyo)
  • Shin-Tokyo (新東京, New Tokyo)

S, continued

  • Shin-Totomi (新遠江, New Totomi)
  • Shin-Wakasa (新若狭, New Wakasa)
  • Shin-Yamato (新大和, New Yamato)
  • Shinano (信濃, old province in today's Nagano)
  • Shinatsuhiko (級長津彦, a wind god)
  • Shinen (深淵, abyss)
  • Shingetsu (新月, new moon)
  • Shinjuboshi (真珠星, pearl star, a Japanese name of Spica)
  • Shinkaisei (深海星, deep sea)
  • Shinkiro (蜃気楼, mirage)
  • Shinonome (東雲, eastern clouds, first light)
  • Shinra Bansho (森羅万象, all things in the universe)
  • Shinsei (辰星, classical name of Mercury)
  • Shinsekai (新世界, the new world)
  • Shinsha (辰砂, cinnabar)

S, continued

  • Shintenchi (新天地, new heaven and earth)
  • Shiokaze (潮風, sea breeze)
  • Shiosai (潮騒, the roar of the tide)
  • Shiotsuchi (塩土, the old god of the tides)
  • Shippo (七宝, the seven treasures)
  • Shirakaba (白樺, white birch)
  • Shirakumo (白雲, white cloud)
  • Shiranami (白波, whitecaps)
  • Shiranui (不知火, the unknown fire seen at sea)
  • Shirasagi (白鷺, white egret)
  • Shiratsuyu (白露, white dew)
  • Shirayuki (白雪, white snow)
  • Shiretoko XII (知床)
  • Shiroboshi (白星, white star, also a win in sumo)

S, continued

  • Shishi (獅子, the guardian lion)
  • Shitateruhime (下照姫)
  • Shitenno (四天王, the four heavenly kings)
  • Shiwasu (師走, the twelfth month)
  • Shizuku (雫, droplet)
  • Shodo (焦土, scorched earth)
  • Shogyo Mujo (諸行無常, all things pass)
  • Shokisei (瘴気星, miasma)
  • Shokujo (織女, the weaver, Vega)
  • Shonetsu (焦熱, searing heat)
  • Shubun (秋分, autumn equinox)
  • Shuensei (終焉星, the end)
  • Shumisen (須弥山, Mount Sumeru)
  • Shunbun (春分, spring equinox)
  • Shunka Shuto (春夏秋冬, spring, summer, autumn, winter)

S, continued

  • Shunrai (春雷, spring thunder)
  • Shutosei (首都星, capital world)
  • Soeboshi (添え星, attendant star, folk name of Alcor)
  • Sogensei (草原星, grassland)
  • Soko (霜降, frost falls)
  • Sokoku (祖国, the ancestral land)
  • Sora no Hate (空の果て, the end of the sky)
  • Soya XI (宗谷)
  • Soyokaze (そよ風, soft breeze)
  • Subaru (昴, the Pleiades)
  • Suigetsu (水月, the moon in the water)
  • Suigin (水銀, quicksilver)
  • Suijin (水神, water deity)
  • Suiren (睡蓮, water lily)
  • Suisei (水星, Mercury)

S, continued

  • Suishosei (水晶星, rock crystal)
  • Suiten (水天, the water deva)
  • Sukunabikona (少彦名, the tiny god of healing)
  • Sumida Daiichi Eisei (隅田第一衛星, first satellite of Sumida)
  • Sumiyoshi (住吉, the gods of safe voyages)
  • Suna no Hoshi (砂の星, the sand planet)
  • Sunaarashi (砂嵐, sandstorm)
  • Suruga (駿河, old province in today's Shizuoka)
  • Susanoo (須佐之男, the storm god)
  • Suserihime (須勢理毘売)
  • Susuki (薄, pampas grass)
  • Suzaku (朱雀, vermilion bird of the south)
  • Suzu (鈴, bell)
  • Suzumushi (鈴虫, bell cricket)
  • Suzutsuki (涼月, cool moon)

T: 97 names

  • Tabibito no Hoshi (旅人の星, the travelers' star)
  • Tachimachizuki (立待月, seventeenth night, awaited standing)
  • Tagitsuhime (湍津姫, a Munakata sea goddess)
  • Tagorihime (田心姫, a Munakata sea goddess)
  • Taifusei (台風星, typhoon)
  • Taihaku (太白, classical name of Venus)
  • Taikai (大海, great sea)
  • Taishakuten (帝釈天, lord of the devas)
  • Taisho (大暑, the great heat)
  • Takachiho (高千穂, where the heavenly grandson came down)
  • Takamagahara (高天原, the plain of high heaven)
  • Takamimusubi (高御産巣日, a creator god)
  • Takaokami (高龗, dragon god of the heights)

T, continued

  • Takemikazuchi (建御雷, god of thunder and the sword)
  • Takeminakata (建御名方, the god of Suwa)
  • Taketori (竹取, the bamboo cutter)
  • Tama Daiyon Wakusei (多摩第四惑星, fourth planet of Tama)
  • Tamago (卵, egg)
  • Tamahagane (玉鋼, the jewel steel of swordsmiths)
  • Tamayorihime (玉依姫)
  • Tamayura (玉響, a fleeting moment)
  • Tamonten (多聞天, the all-hearing guardian)
  • Tanabata (七夕, the star festival)
  • Tane (種, seed)
  • Tango VI (丹後)
  • Tasogare (黄昏, dusk)
  • Tatara (婁, a lunar mansion)

T, continued

  • Tatsumaki (竜巻, tornado)
  • Tenchi Kaibyaku (天地開闢, the opening of heaven and earth)
  • Tengoku (天国, heaven)
  • Tengu (天狗, heavenly dog)
  • Tenjin (天神, the heavenly deity of learning)
  • Tenka (天下, all under heaven)
  • Tenka Taihei (天下泰平, peace under heaven)
  • Tenkai (天界, the heavenly realm)
  • Tenku Kaikatsu (天空海闊, open sky and wide sea)
  • Tennosei (天王星, Uranus)
  • Tennyo (天女, heavenly maiden)
  • Tenro (天狼, sky wolf, Sirius)
  • Tenryu Daiyon Wakusei (天竜第四惑星, fourth planet of Tenryu)
  • Teruzuki (照月, shining moon)

T, continued

  • Teshio Daihachi Wakusei (天塩第八惑星, eighth planet of Teshio)
  • Tessei (鉄星, iron)
  • Todo (凍土, frozen ground)
  • Togenkyo (桃源郷, the peach blossom paradise)
  • Toji (冬至, winter solstice)
  • Tokachi Daikyu Wakusei (十勝第九惑星, ninth planet of Tokachi)
  • Tokai III (東海)
  • Tokaki (奎, a lunar mansion)
  • Toki (朱鷺, crested ibis)
  • Tokiwa (常磐, everlasting as rock)
  • Tokoharu (常春, endless spring)
  • Tokonatsu (常夏, endless summer)
  • Tokoshie (永久, forever)
  • Tokoyami (常闇, everlasting darkness)

T, continued

  • Tokoyo (常世, the eternal land)
  • Tonbo (蜻蛉, dragonfly)
  • Tone Daisan Wakusei (利根第三惑星, third planet of Tone)
  • Toriten (忉利天, heaven of the thirty-three)
  • Toroki (觜, a lunar mansion)
  • Tosa (土佐, old province in today's Kochi)
  • Toshigami (年神, deity of the year)
  • Tosotsuten (兜率天, Tushita heaven)
  • Towa (永遠, eternity)
  • Toyoashihara (豊葦原, the rich reed plains)
  • Toyotamahime (豊玉姫, the sea god's daughter)
  • Toyouke (豊受, goddess of food and harvest)
  • Tozai Nanboku (東西南北, east, west, south, north)
  • Tsubaki (椿, camellia)

T, continued

  • Tsubame (燕, swallow)
  • Tsubomi (蕾, bud)
  • Tsubute (礫, a thrown stone)
  • Tsugaru X (津軽)
  • Tsugomori (晦, the dark end of the lunar month)
  • Tsui no Sumika (終の棲家, the last home)
  • Tsuki no Fune (月の舟, the moon boat)
  • Tsuki no Miyako (月の都, the capital on the moon)
  • Tsuki no Shizuku (月の雫, moon drops)
  • Tsuki no Usagi (月の兎, the rabbit in the moon)
  • Tsukiakari (月明かり, moonlight)
  • Tsukiboshi (月星, moon and star)
  • Tsukikage (月影, moonbeam)
  • Tsukimachi (月待ち, waiting for moonrise)

T, continued

  • Tsukimi (月見, moon viewing)
  • Tsukimiso (月見草, evening primrose)
  • Tsukinowa (月の輪, moon ring, the mark of the black bear)
  • Tsukishiro (月白, the pale sky before moonrise)
  • Tsukiyo (月夜, moonlit night)
  • Tsukuba III (筑波)
  • Tsukuyomi (月読, the moon god)
  • Tsumuji (旋風, whirlwind)
  • Tsurara (氷柱, icicle)
  • Tsuriganeboshi (釣鐘星, temple bell, the Hyades)
  • Tsuruboshi (鶴星, crane)
  • Tsurugi no Hoshi (剣の星, star of the sword)
  • Tsushima (対馬, old island province)
  • Tsuzumiboshi (鼓星, hand drum, folk name of Orion)

U: 24 names

  • Uchoten (有頂天, the highest heaven)
  • Uchu (宇宙, the universe)
  • Ugetsu (雨月, moon hidden by rain)
  • Uguisu (鶯, bush warbler)
  • Ukemochi (保食, the food goddess)
  • Ukiyo (浮世, the floating world)
  • Umi no Hoshi (海の星, world of the sea)
  • Uminari (海鳴り, the rumble of the sea)
  • Umisachihiko (海幸彦, luck of the sea)
  • Umiyame (危, a lunar mansion)
  • Unabara (海原, the open sea)
  • Ungyo (吽形, the closed-mouthed guardian)

U, continued

  • Unkaisei (雲海星, sea of clouds)
  • Unsan Musho (雲散霧消, gone like cloud and mist)
  • Uotsuriboshi (魚釣り星, fishhook, folk name of Scorpius)
  • Urashima (浦島, the fisherman who lost centuries)
  • Ushimitsu (丑三つ, the darkest hour)
  • Usugumo (薄雲, thin cloud)
  • Usui (雨水, when snow turns to rain)
  • Usurai (薄氷, thin ice)
  • Utakata (泡沫, foam on the water)
  • Utsushiyo (現世, the world of the living)
  • Uzuki (卯月, the fourth month)
  • Uzushio (渦潮, whirling tide)

W: 8 names

  • Wakaba (若葉, young leaves)
  • Wakaboshi (若星, young)
  • Wakahirume (稚日女, the young sun maiden)
  • Wakakusa (若草, young grass)
  • Wakare no Hoshi (別れの星, star of partings)
  • Wakatsuki (若月, young moon)
  • Wakizashi (脇差, the companion sword)
  • Watatsumi (綿津見, the sea god)

Y: 65 names

  • Yachiyo (八千代, eight thousand ages)
  • Yaeshio (八重潮, eightfold tides)
  • Yahagi Daiichi Eisei (矢作第一衛星, first satellite of Yahagi)
  • Yakumo (八雲, eightfold clouds)
  • Yakushi (薬師, the healing buddha)
  • Yakusoku no Chi (約束の地, the promised land)
  • Yakusoku no Hoshi (約束の星, the promised star)
  • Yamaboshi (山星, mountain)
  • Yamabuki (山吹, kerria gold)
  • Yamagataboshi (山形星, mountain shape, folk name of Cassiopeia)
  • Yamanoha no Tsuki (山の端の月, moon on the mountain rim)
  • Yamasachihiko (山幸彦, luck of the mountain)
  • Yamase (山背, cold wind off the sea)

Y, continued

  • Yamashiro (山城, old province in today's Kyoto)
  • Yamata no Orochi (八岐大蛇, the eight-forked serpent)
  • Yamato (大和, old province in today's Nara)
  • Yamato Takeru (日本武, the legendary prince)
  • Yamayuri (山百合, mountain lily)
  • Yami no Hoshi (闇の星, the dark star)
  • Yamiji (闇路, the dark road)
  • Yamiyo (闇夜, moonless night)
  • Yanagi (柳, willow)
  • Yaoyorozu (八百万, eight million, the countless gods)
  • Yasakani no Magatama (八尺瓊勾玉, the sacred jewel)
  • Yasha (夜叉, a yaksha)
  • Yashima (八洲, the eight islands)

Y, continued

  • Yata no Kagami (八咫鏡, the sacred mirror)
  • Yatagarasu (八咫烏, the three-legged sun crow)
  • Yayoi (弥生, the third month)
  • Yoake (夜明け, the end of night)
  • Yoboshi (夜星, night)
  • Yodo Daisan Wakusei (淀第三惑星, third planet of Yodo)
  • Yogansei (溶岩星, lava)
  • Yoi (宵, early evening)
  • Yoi no Myojo (宵の明星, Venus at dusk)
  • Yoizuki (宵月, moon of early evening)
  • Yomi (黄泉, the land of the dead)
  • Yomotsu Hirasaka (黄泉比良坂, the slope to the underworld)
  • Yorozuyo (万代, ten thousand ages)

Y, continued

  • Yosaisei (要塞星, fortress)
  • Yoshino V (吉野)
  • Yotsuboshi (四つ星, four stars)
  • Yotsuyu (夜露, night dew)
  • Yowa (夜半, midnight)
  • Yozora (夜空, night sky)
  • Yudachi (夕立, evening downpour)
  • Yugao (夕顔, moonflower)
  • Yugiri (夕霧, evening mist)
  • Yugure (夕暮れ, nightfall)
  • Yuhi (夕日, evening sun)
  • Yuki no Hoshi (雪の星, the snow planet)
  • Yukiakari (雪明かり, snow light)

Y, continued

  • Yukiboshi (雪星, snow)
  • Yukige (雪解, snowmelt)
  • Yukiguni (雪国, snow country)
  • Yukoku (幽谷, deep ravine)
  • Yukyu (悠久, timeless)
  • Yume no Hoshi (夢の星, star of dreams)
  • Yumiharizuki (弓張月, drawn bow)
  • Yunagi (夕凪, evening calm)
  • Yusei (遊星, wandering star, an old word for planet)
  • Yuyake (夕焼け, sunset glow)
  • Yuyami (夕闇, gathering dark)
  • Yuzuki (夕月, evening moon)
  • Yuzutsu (夕星, evening star)

Z: 4 names

  • Zangetsu (残月, the moon left at dawn)
  • Zekkai (絶海, the far lonely sea)
  • Zettai Reido (絶対零度, absolute zero)
  • Zochoten (増長天, guardian of the south)