- sun
- 1.2× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
TOI-4633 c
TOI-4633 c is a confirmed sub-Neptune exoplanet 311 ly from Earth in the constellation Draco, discovered in 2024 by Transiting Exoplanet Survey Satellite (TESS).
Transit: spotted by the tiny, repeating dip in its star’s light each time the planet crosses in front of it (what that means).
Its yellow, Sun-like star looks 1.2× wider than ours, bathing the surface in warm white light. A year passes in just 272 days, and at an estimated -5°C (24°F) it is cold.
Catalog values (NASA Exoplanet Archive): mass 123 M⊕, radius 3.20 R⊕. Its catalog mass and radius imply a density of 20.7 g/cm³, denser than compressed iron, so they cannot both be right, and gravityfinder does not use TOI-4633 c in gravity rankings or weight calculations.
How closely this world matches Earth in size and warmth, from 0 to 1 (Earth = 1.0). Computed by gravityfinder. See every world ranked →
What these mean: surface gravity · tidal locking · equilibrium temperature · Earth similarity · habitable zone
Hear how a voice sounds herea computed acoustic demoEXPERIMENTAL · just for fun
Your voice would sound much as it does on Earth.
Assuming Earth-like air at this world's temperature of about -5°C (24°F), sound would travel close to its Earth speed, so your voice would sound much as it does on Earth. The real atmosphere is unknown.
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.
- Surface temperatures near -5°C (24°F) fall in the range where liquid water is at least possible.
A playful read of TOI-4633 c’s measured and computed values, not a real advisory.
How long to get there · 311 ly awayCALCULATED
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 TOI-4633 c from Earth?
TOI-4633 c lies about 311 light-years from Earth.
How long would it take to get to TOI-4633 c?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 484,268 years.
How hot is TOI-4633 c?
TOI-4633 c's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about -5°C (24°F).
Is TOI-4633 c habitable?
TOI-4633 c orbits near its star's habitable zone, the range of distances where liquid water could be stable, and its Earth-similarity index is 0.61. That makes it worth studying, but it is not evidence of life: we have no measurement of its atmosphere, water, or surface.
How long is a year on TOI-4633 c?
TOI-4633 c completes one orbit of its star in 272 days.
Illustration generated from TOI-4633 c's confirmed parameters, not a photograph.