About GJ 179 b
GJ 179 b is a common exoplanet. It lies about 40.3 light-years from Earth, has an equilibrium temperature near 65 K, spans roughly 13.8 Earth radii and weighs about 301.94 Earth masses.
A deep-frozen world far from its star's warmth.
Common exoplanet 17 EP
GJ 179 b
RA 73.0245° · Dec 6.4752° · exoplanet
Score breakdown
· 3 badgesCommon 24 pts → Uncommon
- Frozen world +8
- Confirmed exoplanet +5
- Gas giant +4
Total score 17
7 more points to reach Uncommon.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- 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. ≈ 708.2 thousand years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 62.9 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 403 years in a starship at a tenth of light speed.
- Distance. 40.3 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1986.
Saying hello
- Say hello. A radio message and its reply would take 80.6 years round-trip.
Standing on it
- A year here. A full year lasts about 6.3 Earth years.
By the numbers
- Size. About 13.8× the width of Earth.
- Volume. About 2628 Earths could fit inside it.
- Mass. Roughly 302× Earth's mass — about 1 Jupiters.
- Your weight. You'd weigh about 1.6× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. A frigid -209°C — colder than dry ice.
How we found it
- Discovery. Found by W. M. Keck Observatory using the radial velocity method.
Properties
- density gcc
- 0.631
- discovery facility
- W. M. Keck Observatory
- discovery method
- Radial Velocity
- dist ly
- 40.2998
- eccentricity
- 0.21
- eq temp k
- 64.53
- insolation
- 0.0028
- mass earth
- 301.937
- name
- GJ 179 b
- orbital period days
- 2288
- radius earth
- 13.8
- sys num planets
- 1
How to see it
Like any astronomical target, GJ 179 b 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 179 b is a common exoplanet
GJ 179 b scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 7 points would lift it into a rarer tier.
That score comes from 3 science badges — Confirmed exoplanet, Gas giant 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.