About GL GJ 2121
GL GJ 2121 is a trash star. It lies about 73.2 light-years from Earth, sits in the constellation Oph and shines at apparent magnitude 12.27.
Its colour puts the surface at roughly 3830 K, against the Sun's 5778 K.
Trash star 11 EP
GL GJ 2121
RA 247.5546° · Dec -14.6638° · star
Score breakdown
· 2 badgesTrash 15 pts → Common
- Deep red star +8
- Star +3
Total score 11
4 more points to reach Common.
Badges
- Star · +3
- Deep red star · +8
Trivia
Sense of scale
- In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.
Find it in the sky
- How to spot it. At magnitude 12.3 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Ophiuchus.
- Southern sky. It rides the southern half of the sky — an easier target the further south you are.
- Best time of year. It stands highest in the middle of the night around May — that's when to go looking.
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 1.3 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 114.2 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 732 years in a starship at a tenth of light speed.
Properties
- absmag
- 10.516
- bv
- 1.474
- constellation
- Oph
- dist ly
- 73.162
- luminosity
- 0.0054
- mag
- 12.27
- name
- GL GJ 2121
How to see it
Look for GL GJ 2121 in the constellation Oph. At apparent magnitude 12.27, it takes a larger telescope or a long-exposure image to capture.
Like any astronomical target, GL GJ 2121 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 GL GJ 2121 is a trash star
GL GJ 2121 scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.
That score comes from 2 science badges — Star and Deep red star — 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.