Uncommon exoplanet 29 EP
HD 10180 e
RA 24.4731° · Dec -60.5115° · exoplanet
Score breakdown
· 4 badgesUncommon 33 pts → Rare
- Richly packed system +14
- Multi-planet system +6
- Confirmed exoplanet +5
- Neptune-like +4
Total score 29
4 more points to reach Rare.
Badges
- Confirmed exoplanet · +5
- Neptune-like · +4
- Multi-planet system · +6
- Richly packed system · +14
Trivia
What makes it special
- Packed system. Crammed into a system of five or more planets.
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 2.2 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 198.4 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 1271 years in a starship at a tenth of light speed.
- Distance. 127 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1899.
Saying hello
- Say hello. A radio message and its reply would take 254 years round-trip.
Standing on it
- A year here. A full year lasts just 49.7 Earth days.
By the numbers
- Size. About 5.4× the width of Earth.
- Volume. About 157 Earths could fit inside it.
- Mass. About 25.1× the mass of Earth.
- Your weight. You'd weigh about 0.9× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. A scorching 305°C on average.
How we found it
- Discovery. Found by La Silla Observatory using the radial velocity method.
Cosmic context
- Crowded system. One of at least 6 planets orbiting its star.
Properties
- density gcc
- 0.881
- discovery facility
- La Silla Observatory
- discovery method
- Radial Velocity
- dist ly
- 127.0727
- eccentricity
- 0.051
- eq temp k
- 577.77
- insolation
- 20.4541
- mass earth
- 25.1
- name
- HD 10180 e
- orbital period days
- 49.748
- radius earth
- 5.39
- sys num planets
- 6