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Uncommon star 26 EP

GL Gl 47

RA 15.3255° · Dec 61.3670° · star

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Score breakdown

· 5 badges
26 pts · Uncommon
Uncommon 34 pts → Rare
  • Deep red star +8
  • Red dwarf +6
  • Cool red M-type star +5
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 26

8 more points to reach Rare.

Badges

  • Star · +3
  • Never sets (northern circumpolar) · +4
  • Cool red M-type star · +5
  • Deep red star · +8
  • Red dwarf · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads dM2.5e — 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 10.8 you'll want a small backyard telescope, over in Cassiopeia.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around October — 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. ≈ 620.3 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
10.658
bv
1.57
constellation
Cas
dist ly
35.2982
luminosity
0.0048
mag
10.83
name
GL Gl 47
spect
dM2.5e

About GL Gl 47

GL Gl 47 is an uncommon star. It lies about 35.3 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 10.83 and has spectral type dM2.5e.

Its spectrum reads dM2.5e — 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 Gl 47 in the constellation Cas. At apparent magnitude 10.83, a small backyard telescope will bring it into view.

Like any astronomical target, GL Gl 47 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 Gl 47 is an uncommon star

GL Gl 47 scores 26 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 8 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Never sets (northern circumpolar), 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.