Rare exoplanet 40 EP
Kepler-87 c
RA 297.9168° · Dec 46.9651° · exoplanet
Score breakdown
· 6 badgesRare 46 pts → Epic
- Puffy low-density world +12
- Distant (>1000 ly) +10
- Multi-planet system +6
- Confirmed exoplanet +5
- Gas giant +4
- Found by Kepler +3
Total score 40
6 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Puffy low-density world · +12
- Multi-planet system · +6
- Found by Kepler · +3
- 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. ≈ 70.7 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 6.3 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 40.2 thousand years in a starship at a tenth of light speed.
- Distance. 4021 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 8042 years round-trip.
Standing on it
- A year here. A full year lasts just 191 Earth days.
By the numbers
- Size. About 6.1× the width of Earth.
- Volume. About 231 Earths could fit inside it.
- Mass. About 6.4× the mass of Earth.
- Your weight. You'd weigh about 0.2× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. A scorching 130°C on average.
How we found it
- Discovery. Found by Kepler using the transit method.
Cosmic context
- Crowded system. One of at least 2 planets orbiting its star.
Properties
- density gcc
- 0.152
- discovery facility
- Kepler
- discovery method
- Transit
- dist ly
- 4021.1773
- eccentricity
- 0.039
- eq temp k
- 403
- insolation
- 4.656
- mass earth
- 6.4
- name
- Kepler-87 c
- orbital period days
- 191.2318
- radius earth
- 6.14
- sys num planets
- 2