← Back to dex
Rare star 49 EP

GL Gl 783B

RA 302.7987° · Dec -36.1026° · star

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

Computing the sky for your location…

Score breakdown

· 8 badges
49 pts · Rare
Rare 50 pts → Epic
  • Nearby (<25 ly) +12
  • Toward the galactic centre +8
  • Binary star +6
  • Red dwarf +6
  • Intrinsically feeble (Mv > +12) +6
  • Cool red M-type star +5
  • Star +3
  • On the zodiac +3
Total score 49

1 more point to reach Epic.

Badges

  • Star · +3
  • Nearby (<25 ly) · +12
  • Binary star · +6
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • Cool red M-type star · +5
  • 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 M3.5 — 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 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. ≈ 346.9 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
12.591
binary
yes
constellation
Sgr
dist ly
19.7383
luminosity
0.0008
mag
11.5
name
GL Gl 783B
spect
M3.5

About GL Gl 783B

GL Gl 783B is a rare star. It lies about 19.7 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 11.5 and has spectral type M3.5.

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 783B in the constellation Sgr. At apparent magnitude 11.5, a small backyard telescope will bring it into view.

Like any astronomical target, GL Gl 783B 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 783B is a rare star

GL Gl 783B scores 49 points on Spacedle's rarity scale, which places it in the rare tier. Another 1 point would lift it into a rarer tier.

That score comes from 8 science badges — Star, Nearby (<25 ly), Binary star, Toward the galactic centre, On the zodiac, Cool red M-type 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.