Host star — Kepler-283
- Spectral type
- —
- Temperature
- 4,351 K
- Radius
- 0.57 R☉
- Mass
- 0.60 M☉
- Luminosity
- 0.104 L☉
- Distance
- 468.1 pc (1,527 ly)
Cooler than the Sun. Orange or red dwarf.
Kepler-283 c
Orbits Kepler-283 · 1,527 light-years from Earth
Super-EarthTransit2014ESI 83 · Very Earth-like
Radius
1.82×
Earth
Mass
4.0×
Earth
Year
93d
Temp
240 K
-33°C
Gravity
1.2×
Earth
Distance
1,527
ly
Could life exist here?
AI analysisKepler-283 c is a super-Earth roughly 1.82 times Earth's radius with a mass of 3.97 Earth masses, orbiting a cool red dwarf star every 92.7 days at a distance of 0.341 AU. Its equilibrium temperature of 240 Kelvin places it firmly in the frozen zone—substantially colder than Earth's average of 288 Kelvin, though potentially within habitable range if an atmosphere with sufficient greenhouse gases were present. The planet's density of 3.62 grams per cubic centimeter suggests a rocky composition, and its circular orbit offers orbital stability. The major caveat is distance: at 1,530 light-years away, Kepler-283 c remains observationally inaccessible for atmospheric characterization with current technology. Its habitability score of 83 reflects reasonable equilibrium conditions, but we cannot yet determine whether it retains an atmosphere, possesses liquid water, or harbors any geological processes necessary for life. This well-characterized mid-sized world from Kepler's original mission exemplifies the many potentially habitable worlds waiting for future generations of space telescopes to study directly.
What it would be like
Kepler-283 c is a super-Earth — larger than our planet but likely still rocky or ice-rich. Whether it has a thin atmosphere like Mars or a crushing one like Venus remains unknown.
Surface gravity is about 1.2g — noticeably heavier what you're used to on Earth.
At -33°C, this world is cold — similar to Earth's polar regions or the surface of Mars. Water would likely be frozen, but subsurface liquid isn't ruled out.
An orbital period of 93 days makes the year 3.9× shorter than Earth's. You'd celebrate your birthday more often here.
Earth comparison
Logarithmic bars so Jupiter-class planets fit the same scale as Earth-size worlds.
Radius1.82R⊕
1/25×Earth = 125×
Mass3.97M⊕
1/10000×Earth = 110000×
Surface gravity1.20g
1/100×Earth = 1100×
Equilibrium temp240 K(-33°C)
0 KEarth 255 K2500 K
Side-by-side with Earth
Temperature in context
Liquid N₂Mars avgEarth eq.Earth sfc.Boiling H₂OVenus
Discovery & orbit
- Method
- Transit
- Year
- 2014
- Facility
- Kepler
- Semi-major axis
- 0.3410 AU
- Period
- 92.74 days
- Eccentricity
- 0.0000
- Density
- 3.62 g/cm³
Detected by measuring the tiny dip in starlight as the planet crosses in front of its star.
Nearly circular orbit.
Rocky composition likely. Earth is 5.51 g/cm³.
Discovered via · Transit
Tiny dip in starlight as the planet crosses in front of its star
A transit photometer watches a star nonstop and measures its brightness to ~0.01%. When a planet passes between us and the star, the star dims briefly — the deeper the dip, the bigger the planet. This is how Kepler and TESS found most known exoplanets.
- Overall share
- ~75% of all confirmed worlds
- Best for
- Earth-to-Neptune-sized planets on short orbits
Orbital Animation
Kepler-283Kepler-283 cOrbitEarth orbitHabitable zone
Drag to rotate · scroll to zoomSemi-major axis: 0.341 AUEccentricity: 0.0000Period: 92.7 days
Hertzsprung–Russell Diagram
Where this host star sits among … exoplanet host stars. The main sequence band runs diagonally — giants and supergiants sit above, white dwarfs below.
OBAFGKMCurrent star
How far is 1,527 light-years?
- A light beam leaving Earth right now would arrive in 1,527 years.
- At Voyager 1's speed (17 km/s), the trip would take approximately 26.9 million years.
- A radio signal sent today would arrive in 1526.7 years — and the reply wouldn't come back for twice that.
Earth Similarity Index
83/1000 — Nothing like Earth100 — Identical to Earth
ESI combines radius similarity and equilibrium temperature similarity. Earth = 100. Mars ≈ 73. Venus ≈ 44. This score reflects two physical parameters only — not atmosphere, water, or magnetic field.