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Rare star 48 EP

GL GJ 1245A

RA 298.4733° · Dec 44.4145° · star

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Score breakdown

· 8 badges
48 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
  • Main-sequence star +2
Total score 48

2 more points to reach Epic.

Badges

  • Star · +3
  • Nearby (<25 ly) · +12
  • Binary star · +6
  • Cool red M-type star · +5
  • Main-sequence star · +2
  • 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 M5.5 V e — 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 13.4 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Cygnus.
  • 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 July — 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. ≈ 270.4 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
15.042
binary
yes
bv
1.9
constellation
Cyg
dist ly
15.3848
luminosity
0.0001
mag
13.41
name
GL GJ 1245A
spect
M5.5 V e

About GL GJ 1245A

GL GJ 1245A is a rare star. It lies about 15.4 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 13.41 and has spectral type M5.5 V 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 1245A in the constellation Cyg. At apparent magnitude 13.41, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, GL GJ 1245A 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 1245A is a rare star

GL GJ 1245A scores 48 points on Spacedle's rarity scale, which places it in the rare tier. Another 2 points would lift it into a rarer tier.

That score comes from 8 science badges — Star, Nearby (<25 ly), Binary star, Cool red M-type star, Main-sequence 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.