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Rare star 46 EP

GL GJ 1005A

RA 3.8670° · Dec -16.1338° · star

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Score breakdown

· 7 badges
46 pts · Rare
Rare 50 pts → Epic
  • Nearby (<25 ly) +12
  • Deep red star +8
  • Binary star +6
  • Red dwarf +6
  • Intrinsically feeble (Mv > +12) +6
  • Cool red M-type star +5
  • Star +3
Total score 46

4 more points to reach Epic.

Badges

  • Star · +3
  • Nearby (<25 ly) · +12
  • Binary star · +6
  • Cool red M-type star · +5
  • Deep red star · +8
  • Red dwarf · +6
  • Intrinsically feeble (Mv > +12) · +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 M: — 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 11.5 you'll want a small backyard telescope, over in Cetus.
  • 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 September — 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. ≈ 285.8 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
13.001
binary
yes
bv
1.75
constellation
Cet
dist ly
16.2647
luminosity
0.0005
mag
11.49
name
GL GJ 1005A
spect
M:

About GL GJ 1005A

GL GJ 1005A is a rare star. It lies about 16.3 light-years from Earth, sits in the constellation Cet, shines at apparent magnitude 11.49 and has spectral type M:.

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 1005A in the constellation Cet. At apparent magnitude 11.49, a small backyard telescope will bring it into view.

Like any astronomical target, GL GJ 1005A 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 1005A is a rare star

GL GJ 1005A scores 46 points on Spacedle's rarity scale, which places it in the rare tier. Another 4 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Nearby (<25 ly), Binary star, 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.