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Uncommon star 31 EP

GL GJ 1108B

RA 122.2310° · Dec 32.8170° · star

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Score breakdown

· 6 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Deep red star +8
  • Binary star +6
  • Red dwarf +6
  • Cool red M-type star +5
  • Star +3
  • On the zodiac +3
Total score 31

3 more points to reach Rare.

Badges

  • Star · +3
  • Binary star · +6
  • On the zodiac · +3
  • Cool red M-type star · +5
  • Deep red star · +8
  • Red dwarf · +6

Trivia

What makes it special

  • Not one star but two. It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.

What it actually is

  • Spectral class. Its spectrum reads dM3 e — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

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 12.1 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Cancer.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around January — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

absmag
10.937
binary
yes
bv
1.53
constellation
Cnc
dist ly
56.2339
luminosity
0.0037
mag
12.12
name
GL GJ 1108B
spect
dM3 e

About GL GJ 1108B

GL GJ 1108B is an uncommon star. It lies about 56.2 light-years from Earth, sits in the constellation Cnc, shines at apparent magnitude 12.12 and has spectral type dM3 e.

It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.

How to see it

Look for GL GJ 1108B in the constellation Cnc. At apparent magnitude 12.12, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, GL GJ 1108B 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 1108B is an uncommon star

GL GJ 1108B scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Binary star, On the zodiac, Cool red M-type star, Deep red star and Red dwarf — 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.