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Rare star 36 EP

GL GJ 1158

RA 187.3784° · Dec -56.0005° · star

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Score breakdown

· 6 badges
36 pts · Rare
Rare 50 pts → Epic
  • Under the Southern Cross +8
  • Deep red star +8
  • Red dwarf +6
  • Intrinsically feeble (Mv > +12) +6
  • Cool red M-type star +5
  • Star +3
Total score 36

14 more points to reach Epic.

Badges

  • Star · +3
  • Under the Southern Cross · +8
  • Cool red M-type star · +5
  • Deep red star · +8
  • Red dwarf · +6
  • Intrinsically feeble (Mv > +12) · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads M4 — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

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 13.3 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Crux.
  • 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 March — 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. ≈ 881.8 thousand years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 78.3 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
12.335
bv
1.62
constellation
Cru
dist ly
50.1778
luminosity
0.001
mag
13.27
name
GL GJ 1158
spect
M4

About GL GJ 1158

GL GJ 1158 is a rare star. It lies about 50.2 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 13.27 and has spectral type M4.

Its spectrum reads M4 — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

How to see it

Look for GL GJ 1158 in the constellation Cru. At apparent magnitude 13.27, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, GL GJ 1158 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 1158 is a rare star

GL GJ 1158 scores 36 points on Spacedle's rarity scale, which places it in the rare tier. Another 14 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Under the Southern Cross, Cool red M-type star, Deep red star, Red dwarf and Intrinsically feeble (Mv > +12) — 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.