About CoRoT-20 c
CoRoT-20 c is an epic exoplanet. It lies about 2,753 light-years from Earth, has an equilibrium temperature near 168 K, spans roughly 12.2 Earth radii and weighs about 5,403.11 Earth masses.
Packed denser than solid iron.
Epic exoplanet 52 EP
CoRoT-20 c
RA 97.7204° · Dec 0.2269° · exoplanet
Score breakdown
· 6 badgesEpic 68 pts → Anomaly
- Denser than iron +18
- Distant (>1000 ly) +10
- Eccentric orbit +9
- Multi-planet system +6
- Confirmed exoplanet +5
- Gas giant +4
Total score 52
16 more points to reach Anomaly.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Eccentric orbit · +9
- Denser than iron · +18
- Multi-planet system · +6
- Distant (>1000 ly) · +10
Trivia
What makes it special
- Heavyweight. Packed denser than solid iron.
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 48.4 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 4.3 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 27.5 thousand years in a starship at a tenth of light speed.
- Distance. 2753 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 5506 years round-trip.
Standing on it
- A year here. A full year lasts about 4.6 Earth years.
By the numbers
- Size. About 12.2× the width of Earth.
- Volume. About 1816 Earths could fit inside it.
- Mass. Roughly 5403× Earth's mass — about 17 Jupiters.
- Your weight. You'd weigh about 36.3× your Earth weight standing here.
- Density. Denser than solid iron.
- Temperature. A frigid -105°C — colder than dry ice.
How we found it
- Discovery. Found by Multiple Observatories using the radial velocity method.
Cosmic context
- Crowded system. One of at least 2 planets orbiting its star.
Properties
- density gcc
- 16.4
- discovery facility
- Multiple Observatories
- discovery method
- Radial Velocity
- dist ly
- 2752.9556
- eccentricity
- 0.6
- eq temp k
- 168.16
- insolation
- 0.1759
- mass earth
- 5403.11
- name
- CoRoT-20 c
- orbital period days
- 1675
- radius earth
- 12.2
- sys num planets
- 2
How to see it
Like any astronomical target, CoRoT-20 c 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-20 c is an epic exoplanet
CoRoT-20 c scores 52 points on Spacedle's rarity scale, which places it in the epic tier. Another 16 points would lift it into a rarer tier.
That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Eccentric orbit, Denser than iron, Multi-planet system 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.