← Back to dex
Uncommon star 26 EP

GL Gl 773B

RA 299.3484° · Dec -12.5653° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 5 badges
26 pts · Uncommon
Uncommon 34 pts → Rare
  • Toward the galactic centre +8
  • Binary star +6
  • Intrinsically feeble (Mv > +12) +6
  • Star +3
  • On the zodiac +3
Total score 26

8 more points to reach Rare.

Badges

  • Star · +3
  • Binary star · +6
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • 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 15.4 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Sagittarius.
  • 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 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. ≈ 1.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
13.978
binary
yes
constellation
Sgr
dist ly
61.6317
luminosity
0.0002
mag
15.36
name
GL Gl 773B
spect
m

About GL Gl 773B

GL Gl 773B is an uncommon star. It lies about 61.6 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 15.36 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 Gl 773B in the constellation Sgr. At apparent magnitude 15.36, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, GL Gl 773B 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 773B is an uncommon star

GL Gl 773B 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, Binary star, Toward the galactic centre, On the zodiac 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.