About CoRoT-22 b
CoRoT-22 b is an uncommon exoplanet. It lies about 2,045.5 light-years from Earth, has an equilibrium temperature near 885 K, spans roughly 4.88 Earth radii and weighs about 12.2 Earth masses.
So low-density it would float on water.
Uncommon exoplanet 31 EP
CoRoT-22 b
RA 280.6671° · Dec 6.2192° · exoplanet
Score breakdown
· 4 badgesUncommon 33 pts → Rare
- Puffy low-density world +12
- Distant (>1000 ly) +10
- Confirmed exoplanet +5
- Neptune-like +4
Total score 31
2 more points to reach Rare.
Badges
- Confirmed exoplanet · +5
- Neptune-like · +4
- Puffy low-density world · +12
- Distant (>1000 ly) · +10
Trivia
What makes it special
- Cotton-candy planet. So low-density it would float on water.
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 35.9 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 3.2 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 20.5 thousand years in a starship at a tenth of light speed.
- Distance. 2046 light-years from Earth.
Look-back time
- Look-back time. Its light left before the last ice age ended.
Saying hello
- Say hello. A radio message and its reply would take 4091 years round-trip.
Standing on it
- A year here. A full year lasts just 9.8 Earth days.
By the numbers
- Size. About 4.9× the width of Earth.
- Volume. About 116 Earths could fit inside it.
- Mass. About 12.2× the mass of Earth.
- Your weight. You'd weigh about 0.5× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. Around 612°C — hotter than a self-cleaning oven.
How we found it
- Discovery. Found by CoRoT using the transit method.
Properties
- density gcc
- 0.249
- discovery facility
- CoRoT
- discovery method
- Transit
- dist ly
- 2045.5134
- eccentricity
- 0.077
- eq temp k
- 885
- insolation
- 121.8837
- mass earth
- 12.2
- name
- CoRoT-22 b
- orbital period days
- 9.756
- radius earth
- 4.88
- sys num planets
- 1
How to see it
Like any astronomical target, CoRoT-22 b is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
Why CoRoT-22 b is an uncommon exoplanet
CoRoT-22 b scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 2 points would lift it into a rarer tier.
That score comes from 4 science badges — Confirmed exoplanet, Neptune-like, Puffy low-density world and Distant (>1000 ly) — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.