- sun
- 0.11× as wide
- sky
- deep orange
Illustration computed from this world’s measured and derived values, not a photograph.
GJ 508.2 b
GJ 508.2 b is a confirmed sub-Neptune exoplanet 54.3 ly from Earth in the constellation Canes Venatici, discovered in 2025 by Calar Alto Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Its orange dwarf looks 0.11× as wide as ours, bathing the surface in deep orange light. A year here lasts 14.5 Earth years, and at an estimated -214°C (-353°F) it is colder than almost anywhere in the solar system.
What these mean: surface gravity · tidal locking · equilibrium temperature
Hear how a voice sounds herea computed acoustic demo
Your voice would sound deep and slow, dropped to a low bass.
Assuming Earth-like air at this world's temperature of about -214°C (-353°F), sound would travel roughly 55% slower than on Earth, so your voice would sound deep and slow, dropped to a low bass. The real atmosphere is unknown, so this is a best guess.
A real voice sample, pitch-shifted (tempo held constant) to suggest the acoustics: a playful approximation, not a precise simulation. Voice: Lingua Libre / Vealhurl, CC BY-SA 4.0.
- !Cryogenic at roughly -214°C (-353°F), cold enough to freeze most gases solid.
A playful read of GJ 508.2 b’s measured and computed values, not a real advisory.
How long to get there · 54.3 ly away
No other confirmed planets here yet. New ones auto-appear as telescopes report.
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
How far is GJ 508.2 b from Earth?
GJ 508.2 b lies about 54.3 light-years from Earth.
How long would it take to get to GJ 508.2 b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 84,630 years.
How hot is GJ 508.2 b?
GJ 508.2 b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about -214°C (-353°F).
How long is a year on GJ 508.2 b?
GJ 508.2 b completes one orbit of its star in 14.5 years.
Illustration generated from GJ 508.2 b's confirmed parameters, not a photograph.