Celestial Cat Names (300+ Space, Moon, Star & Galaxy Ideas)
If your cat feels like a tiny universe—quiet, glowing, a little mysterious—then celestial cat names are a perfect match. This guide is built for people searching space cat names celestial, star cat names, moon cat names celestial, and sun cat names celestial, plus options inspired by planets, constellations, galaxies, and nebulae. Some names sound dreamy and gentle, others feel bold and sci-fi, but all of them are easy to use in real life.
To make this page actually helpful, we organized name ideas into “space categories” you can pick from fast: planet cat names, constellation cat names, galaxy cat names, nebula cat names, comet cat names, and even zodiac cat names / astrology cat names. You’ll also find practical filters: celestial cat names for boys, celestial cat names for girls, and unisex celestial cat names. If you’re naming a baby cat, we included celestial kitten names that feel cute and nickname-ready.
Want names that “mean something”? We added a meaning-friendly approach for celestial cat names with meanings—like names that evoke light, night, time, or the sky. If you love pop culture, there are sections for celestial cat names inspired by mythology, celestial cat names inspired by nasa, and sci-fi vibes like celestial cat names inspired by sci fi, star wars, star trek, and sailor moon (kept broad so the names still work even if your friends don’t get the reference).
And because looks matter, we included quick coat-based picks: celestial cat names for black cats (night-sky names), white cats (moonlight and starlight), orange cats (sun and ember-glow), gray cats (mist and lunar stone), and tabby cats (constellations and patterns). Finally, if you’re naming a duo, don’t miss celestial names for two cats, matching celestial names for two cats, and classic pairs like sun and moon cat names pair or star and sky cat names pair.
- Luna
- Nova
- Stella
- Cosmo
- Orion
- Lyra
- Atlas
- Sol
- Astra
- Comet
- Nebula
- Juno
- Vega
- Skye
- Eclipse
- Aries
- Rocket
- Zenith
- Io
- Hubble
Quick Answer
- Best celestial cat names: Luna, Nova, Stella, Cosmo, Orion, Lyra, Sol, Astra, Vega, Eclipse.
- Star cat names: Stella, Vega, Sirius, Polaris, Altair, Rigel.
- Moon cat names celestial: Luna, Selene, Crescent, Lumen, Eclipse.
- Sun cat names celestial: Sol, Helios, Sunny, Flare, Aurelia.
- Planet cat names: Io, Juno, Mars, Venus, Pluto, Saturn.
- Constellation cat names: Orion, Lyra, Andromeda, Draco, Phoenix.
- Short celestial cat names (easy call): Sol, Nova, Skye, Io, Lux, Juno.
- Coat picks: black → Nyx/Eclipse; white → Luna/Polaris; orange → Sol/Helios; gray → Nebula/Mist.
- Celestial names for two cats: Sun & Moon, Nova & Comet, Star & Sky.
- Want meaning? Choose a theme: light (Lux), night (Nyx), time (Aion), sky (Zenith).
On This Page
Celestial name ideas (by space theme)
Moon & sun cat names (celestial light)
For calm, glowing vibes or cats that feel like day and night—strong moon cat names celestial and sun cat names celestial.
- Luna
- Selene
- Crescent
- Moonbeam
- Eclipse
- Lumen
- Sol
- Helios
- Aurora
- Sunny
- Flare
- Aurelia
- Dawn
- Twilight
- Daystar
- Nightfall
- Halo
- Ember
- Ray
- Glimmer
Star cat names (bright, iconic, timeless)
If you searched star cat names, start here—these are crisp, pretty, and easy to say.
- Stella
- Vega
- Sirius
- Polaris
- Altair
- Rigel
- Nova
- Astro
- Star
- Spark
- Comet
- Cosmo
- Celeste
- Lyra
- Astra
- Lux
- Glint
- Twinkle
- Skye
- Zenith
Planet cat names (cute, bold, and nerdy)
These planet cat names work for kittens with curious energy and a “space explorer” vibe.
- Io
- Juno
- Venus
- Mars
- Pluto
- Saturn
- Neptune
- Mercury
- Terra
- Nova
- Atlas
- Kepler
- Orbit
- Cosmo
- Rocket
- Comet
- Astro
- Ganymede
- Titan
- Rhea
Constellation cat names (myth-meets-sky)
Perfect if you want constellation cat names that feel legendary without being too dark.
- Orion
- Lyra
- Andromeda
- Draco
- Phoenix
- Cassiopeia
- Cygnus
- Aquila
- Hydra
- Perseus
- Aries
- Leo
- Taurus
- Gemini
- Virgo
- Scorpius
- Sagitta
- Ursa
- Vela
- Corona
Galaxy & nebula cat names (dreamy + mysterious)
For cats that feel like a soft cloud of stardust—galaxy cat names and nebula cat names.
- Nebula
- Galaxy
- Cosmos
- Stardust
- Milky
- Nova
- Quasar
- Pulsar
- Haze
- Mist
- Cloud
- Eclipse
- Orbit
- Zenith
- Drift
- Aurora
- Celeste
- Opal
- Moonstone
- Silver
Zodiac & astrology cat names
If you searched zodiac cat names or astrology cat names, these are clean, recognizable, and fun.
- Aries
- Taurus
- Gemini
- Cancer
- Leo
- Virgo
- Libra
- Scorpio
- Sagittarius
- Capricorn
- Aquarius
- Pisces
- Nova
- Celeste
- Astra
- Orion
- Lyra
- Zenith
- Halo
- Stella
NASA + sci-fi inspired celestial cat names
For nerdy-cool picks: celestial cat names inspired by nasa and celestial cat names inspired by sci fi (broad and usable).
- Hubble
- Kepler
- Voyager
- Nova
- Orion
- Rocket
- Comet
- Cosmo
- Atlas
- Zenith
- Stella
- Skye
- Astra
- Quasar
- Pulsar
- Photon
- Echo
- Rey
- Leia
- Spock
Short, one-syllable-ish, easy to pronounce/spell
For short celestial cat names and names that are easy to pronounce + easy to spell (great for training).
- Sol
- Lux
- Nova
- Skye
- Io
- Ray
- Star
- Comet
- Halo
- Zen
- Orion
- Vega
- Luna
- Juno
- Atlas
- Mist
- Opal
- Neon
- Echo
- Blue
Popular picks
How to choose the best celestial cat name
Great celestial cat names feel dreamy—but they also need to work in real life. The best name should be easy to call, easy for your cat to learn, and “match” your cat’s vibe in a way that feels natural. Use the system below to pick a name quickly without second-guessing.
1) Choose your core theme: moon, sun, stars, planets, constellations, or deep space. This is the fastest way to narrow down space cat names celestial without scrolling forever.
• Moon theme (moon cat names celestial) feels calm, soft, mysterious: Luna, Selene, Crescent, Moonbeam.
• Sun theme (sun cat names celestial) feels bright, bold, warm: Sol, Helios, Sunny, Flare.
• Star theme (star cat names) feels classic and elegant: Stella, Vega, Sirius, Polaris.
• Planet theme (planet cat names) feels nerdy-cute and modern: Io, Juno, Mars, Venus, Saturn.
• Constellation theme (constellation cat names) feels legendary and mythic: Orion, Lyra, Andromeda, Draco, Phoenix.
• Deep space theme (galaxy cat names, nebula cat names, comet cat names) feels cosmic and rare: Nebula, Quasar, Pulsar, Comet, Stardust.
2) Pick the vibe: cute, unique, or short. Most people searching celestial names want one of these three.
• Cute celestial cat names often sound soft and friendly (Luna, Skye, Twinkle, Halo).
• Unique celestial cat names lean into rare space words (Quasar, Zenith, Andromeda, Cassiopeia).
• Short celestial cat names are easiest for training (Sol, Lux, Nova, Io, Ray).
3) Decide if you want “meaning” or just “sound.” If you’re searching celestial cat names with meanings, you don’t need a complicated backstory—use a simple meaning anchor:
• Light: Lux, Lumen, Halo
• Night: Eclipse, Nightfall, (or mythology-style: Nyx vibe)
• Sky height: Zenith
• Dawn/twilight: Aurora, Twilight
• Travel/exploration: Voyager, Rocket, Orbit
A meaning anchor helps you commit confidently.
4) Match your cat’s personality (this matters more than coat color). If your cat’s behavior is obvious, let it lead the decision:
• Celestial cat names for calm cats: Luna, Selene, Aurora, Mist, Moonstone
• Celestial cat names for mysterious cats: Eclipse, Nebula, Nocturne, Onyx-sky vibe names
• Curious explorer cats: Cosmo, Rocket, Voyager, Orbit, Comet
• Dramatic cats (big energy): Nova, Flare, Quasar, Tempest-style space words
5) Use coat color as a finishing filter. Many people search celestial cat names for black cats, white cats, orange cats, gray cats, and tabby cats. It’s best used as a tie-breaker when you’re stuck between two names:
• Black cats: Eclipse, Nyx-vibe names, Onyx, Void, Nebula
• White cats: Luna, Polaris, Snow, Lumen, Moonbeam
• Orange cats: Sol, Helios, Flare, Sunny, Ember-glow names
• Gray cats: Mist, Nebula, Silver, Moonstone, Haze
• Tabby cats: Orion, Lyra, Draco, “pattern” constellation names
6) Make it usable: pronunciation + spelling. If your goal is celestial cat names easy to pronounce and easy to spell, avoid names you have to explain every time. Great “easy” picks:
• Luna, Nova, Stella, Cosmo, Orion, Skye, Sol, Comet, Atlas
If you love a long name (Cassiopeia, Andromeda), decide a nickname right away:
Cassiopeia → Cassie
Andromeda → Andy / Andro
Cassiopeia + nickname makes the name both epic and practical.
7) Choose by gender—or skip it. Plenty of people want celestial cat names for boys and celestial cat names for girls, but unisex celestial cat names are usually easiest.
• Boy-leaning: Orion, Atlas, Cosmo, Helios, Kepler, Hubble
• Girl-leaning: Luna, Stella, Aurora, Lyra, Celeste, Venus
• Unisex: Nova, Skye, Sol, Comet, Eclipse, Zen(ith), Mist
8) Build “set names” for two cats. If you’re naming siblings, the best celestial names for two cats share a theme but don’t confuse your cats with similar sounds.
• Sun and moon cat names pair: Sol & Luna, Helios & Selene
• Star and sky cat names pair: Stella & Skye, Vega & Sky
• Matching deep-space set: Nova & Comet, Nebula & Quasar, Orbit & Rocket
Avoid pairs like “Luna & Lumen” (too similar) unless you’re okay repeating yourself forever.
9) Pick your inspiration source (optional): mythology, NASA, or pop culture. This keeps your naming style consistent.
• Celestial cat names inspired by mythology lean poetic: Orion, Lyra, Helios, Selene, Phoenix.
• Celestial cat names inspired by nasa feel nerdy-real: Hubble, Kepler, Voyager.
• Sci-fi vibes (celestial cat names inspired by sci fi) can be subtle: Nova, Atlas, Echo, Photon.
If you want fandom flavors (Star Wars / Star Trek / Sailor Moon), choose names that still sound normal to say daily (Leia, Rey, Spock are simple call-names).
10) Do the “two-room test” and the “vet test.” Stand in another room and call the name twice. If it feels smooth and your voice naturally hits the same rhythm, it’s a keeper. Then imagine writing it at the vet and saying it in public. If you’d hesitate, shorten it or use a nickname.
11) Shortlist 5 and let your cat choose the winner. Write five favorites on a note:
1) One moon name, 2) one star name, 3) one planet name, 4) one constellation name, 5) one “wild” deep-space name.
Use them casually for 48 hours. The one you keep saying without thinking—and your kitten responds to—becomes your final name.
12) If you still can’t decide, choose a name that fits future growth. Kittens change fast. “Tiny” names can stop matching a big adult cat. Names like Luna, Nova, Orion, Sol, and Stella grow well from kitten to adult while still feeling magical.
Related guides
More in this category
- Greek Myth Cat Names
- Norse Myth Cat Names
- Egyptian Myth Cat Names
- Witchy & Magical Cat Names
- Dragon-Inspired Cat Names
- Celestial Cat Names
- D&D / RPG Cat Names
- Fairy & Enchanted Cat Names
- Dark Fantasy Cat Names
- Legendary Hero Cat Names
Popular ideas
FAQ
What are the best celestial cat names?
Top celestial cat names include Luna, Nova, Stella, Cosmo, Orion, Lyra, Sol, Astra, Vega, and Eclipse.
What are good moon and sun cat names?
Moon cat names celestial include Luna, Selene, Crescent, Moonbeam, and Eclipse. Sun cat names celestial include Sol, Helios, Sunny, Flare, and Aurora.
What are some star cat names?
Popular star cat names include Stella, Vega, Sirius, Polaris, Altair, and Rigel.
What are some planet and constellation cat names?
Planet cat names include Io, Juno, Mars, Venus, Pluto, and Saturn. Constellation cat names include Orion, Lyra, Andromeda, Draco, and Phoenix.
Are there short celestial cat names that are easy to call?
Yes—short celestial cat names include Sol, Lux, Nova, Skye, Io, Ray, Halo, and Zen(ith). They’re also easy to pronounce and easy to spell.
What celestial names work for two cats?
Great celestial names for two cats include Sol & Luna (a sun and moon cat names pair), Nova & Comet, Stella & Skye (a star and sky cat names pair), and Nebula & Quasar.
What are celestial cat names for black and white cats?
Celestial cat names for black cats include Eclipse, Nebula, Void, and Onyx-sky names. Celestial cat names for white cats include Luna, Polaris, Lumen, and Moonbeam.
How do I pick a celestial cat name with a nickname?
Choose an epic long name and decide a short call-name immediately: Cassiopeia → Cassie, Andromeda → Andy/Andro, Moonbeam → Moon, and Stardust → Star.