Common exoplanet 22 EP
Kapteyn c
RA 77.9587° · Dec -45.0430° · exoplanet
Score breakdown
· 3 badgesCommon 24 pts → Uncommon
- Nearby (<25 ly) +12
- Confirmed exoplanet +5
- Sub-Neptune +5
Total score 22
2 more points to reach Uncommon.
Badges
- Confirmed exoplanet · +5
- Sub-Neptune · +5
- Nearby (<25 ly) · +12
Trivia
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 225.4 thousand years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 20 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 128 years in a starship at a tenth of light speed.
- Distance. 12.8 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 2013.
Saying hello
- Say hello. A radio message and its reply would take 25.7 years round-trip.
Standing on it
- A year here. A full year lasts just 122 Earth days.
By the numbers
- Size. About 2.5× the width of Earth.
- Volume. About 16.4 Earths could fit inside it.
- Mass. About 7× the mass of Earth.
- Your weight. You'd weigh about 1.1× your Earth weight standing here.
- Temperature. A frigid -108°C — colder than dry ice.
How we found it
- Discovery. Found by Multiple Observatories using the radial velocity method.
Properties
- density gcc
- 2.35
- discovery facility
- Multiple Observatories
- discovery method
- Radial Velocity
- dist ly
- 12.8279
- eccentricity
- 0.23
- eq temp k
- 165.59
- insolation
- 0.1666
- mass earth
- 7
- name
- Kapteyn c
- orbital period days
- 121.54
- radius earth
- 2.54
- sys num planets
- 1