About CoRoT-7 d
CoRoT-7 d is a common exoplanet. It lies about 521.5 light-years from Earth, spans roughly 4.31 Earth radii, weighs about 17.14 Earth masses and completes an orbit every 8.97 days.
One of at least 3 planets orbiting its star.
Common exoplanet 15 EP
CoRoT-7 d
RA 100.9562° · Dec -1.0630° · exoplanet
Score breakdown
· 3 badgesCommon 24 pts → Uncommon
- Multi-planet system +6
- Confirmed exoplanet +5
- Neptune-like +4
Total score 15
9 more points to reach Uncommon.
Badges
- Confirmed exoplanet · +5
- Neptune-like · +4
- Multi-planet system · +6
Trivia
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 9.2 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 814.3 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 5215 years in a starship at a tenth of light speed.
- Distance. 522 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1504.
Saying hello
- Say hello. A radio message and its reply would take 1043 years round-trip.
Standing on it
- A year here. A full year lasts just 9 Earth days.
By the numbers
- Size. About 4.3× the width of Earth.
- Volume. About 80.1 Earths could fit inside it.
- Mass. About 17.1× the mass of Earth.
- Your weight. You'd weigh about 0.9× your Earth weight standing here.
How we found it
- Discovery. Found by La Silla Observatory using the radial velocity method.
Cosmic context
- Crowded system. One of at least 3 planets orbiting its star.
Properties
- density gcc
- 1.18
- discovery facility
- La Silla Observatory
- discovery method
- Radial Velocity
- dist ly
- 521.543
- mass earth
- 17.142
- name
- CoRoT-7 d
- orbital period days
- 8.966
- radius earth
- 4.31
- sys num planets
- 3
How to see it
Like any astronomical target, CoRoT-7 d 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-7 d is a common exoplanet
CoRoT-7 d scores 15 points on Spacedle's rarity scale, which places it in the common tier. Another 9 points would lift it into a rarer tier.
That score comes from 3 science badges — Confirmed exoplanet, Neptune-like and Multi-planet system — 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.