Planet Name Generator

How Planets Are Named in Reality and Fiction

In astronomy, the naming of celestial bodies follows conventions established by the International Astronomical Union. Classical planets were named for Roman deities, a tradition that established the expectation that planets carry mythological names. Moons, asteroids, and more recently discovered bodies follow their own conventions: moons of Jupiter are named for figures associated with Zeus in mythology, moons of Uranus for Shakespearean characters, and so on.

Science fiction planetary naming draws on these traditions while also developing its own conventions. Some names signal a colonial history (New Eden, New Shanghai, Port Bradbury), others encode scientific information (Kepler-186f style designations), and others draw from invented cultures with their own mythological traditions.

What a Planet's Name Should Communicate

A well-named planet tells you something about what kind of world it is before any description is offered. Consider what each of these names implies without any additional context:

• Cinder: Volcanic, harsh, burned. A world of industry or desolation.
• Verdant: Lush and green. Life in abundance, possibly dangerous abundance.
• Hollowreach: Something vast and empty, possibly a world that used to be more than it is.
• Aurora Prime: The first (and probably most important) world in a system. Implicitly the center of something larger.

None of these names need to be explained. They do their work subconsciously, shaping reader expectations before a single scene is set on the planet's surface.

Naming Conventions by Genre Tradition

Different science fiction traditions develop different planetary naming conventions. Hard science fiction tends toward names that could plausibly emerge from scientific discovery: alphanumeric designations combined with phonetic nicknames that the inhabitants adopt. Space opera gravitates toward names with mythological or emotional resonance. Military science fiction often names planets after their strategic function or their most notable geographic feature. Knowing which tradition your story sits in helps you select names from the generator that feel consistent with the world you are building.

Building a Consistent Stellar Cartography

The most convincing science fiction universes have consistent naming conventions across their star systems and planetary bodies. If one region of space has planets named after classical deities and another has planets with compound descriptive names, the difference implies something about the cultures that named them, or the different eras of exploration in which they were discovered. The planet names in your universe are an opportunity to build history and cultural texture into the background of the story without requiring direct exposition.

Naming Your Planet

To christen a world, think about:

• What environment-ice, desert, ocean-defines your planet?
• Do you want a scientific or fantastical tone?
• Should it hint at its primary feature or element?
• Would a numeric designation (e.g., Prime) add flair?
• How does it roll off the tongue in narrative?

What are good planet names?

There's thousands of random planet names in this generator. Here are some samples to start:

• Varvis 689
• Nomia 55D
• Llurn Q7
• Gnilia FNT
• Troria W5
• Gone L2P
• Greron 354
• Gichi 9F
• Striuq 76ET
• Sone QZL