About GJ 1151 c
GJ 1151 c is a common exoplanet. It lies about 26.2 light-years from Earth, has an equilibrium temperature near 88 K, spans roughly 3.25 Earth radii and weighs about 10.62 Earth masses.
A deep-frozen world far from its star's warmth.
Common exoplanet 18 EP
GJ 1151 c
RA 177.7305° · Dec 48.3732° · exoplanet
Score breakdown
· 3 badgesCommon 24 pts → Uncommon
- Frozen world +8
- Confirmed exoplanet +5
- Sub-Neptune +5
Total score 18
6 more points to reach Uncommon.
Badges
- Confirmed exoplanet · +5
- Sub-Neptune · +5
- Frozen world · +8
Trivia
What makes it special
- Frozen world. A deep-frozen world far from its star's warmth.
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 460.6 thousand years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 40.9 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 262 years in a starship at a tenth of light speed.
- Distance. 26.2 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 2000.
Saying hello
- Say hello. A radio message and its reply would take 52.4 years round-trip.
Standing on it
- A year here. A full year lasts just 390 Earth days.
By the numbers
- Size. About 3.2× the width of Earth.
- Volume. About 34.3 Earths could fit inside it.
- Mass. About 10.6× the mass of Earth.
- Your weight. You'd weigh about 1.0× your Earth weight standing here.
- Temperature. A frigid -185°C — colder than dry ice.
How we found it
- Discovery. Found by Multiple Facilities using the radial velocity method.
Properties
- density gcc
- 1.7
- discovery facility
- Multiple Facilities
- discovery method
- Radial Velocity
- dist ly
- 26.2107
- eq temp k
- 88.3
- insolation
- 0.0102
- mass earth
- 10.62
- name
- GJ 1151 c
- orbital period days
- 389.7
- radius earth
- 3.25
- sys num planets
- 1
How to see it
Like any astronomical target, GJ 1151 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 GJ 1151 c is a common exoplanet
GJ 1151 c scores 18 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.
That score comes from 3 science badges — Confirmed exoplanet, Sub-Neptune and Frozen world — 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.