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Common star 16 EP

GL GJ 9733B

RA 319.9644° · Dec -53.4507° · star

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Score breakdown

· 4 badges
16 pts · Common
Common 22 pts → Uncommon
  • Binary star +6
  • White A-type star +5
  • Star +3
  • Main-sequence star +2
Total score 16

6 more points to reach Uncommon.

Badges

  • Star · +3
  • Binary star · +6
  • White A-type star · +5
  • Main-sequence star · +2

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 A7 V — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

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 6.9 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Indus.
  • 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 August — 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. ≈ 1.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
5.011
binary
yes
constellation
Ind
dist ly
77.8414
luminosity
0.8622
mag
6.9
name
GL GJ 9733B
spect
A7 V

About GL GJ 9733B

GL GJ 9733B is a common star. It lies about 77.8 light-years from Earth, sits in the constellation Ind, shines at apparent magnitude 6.9 and has spectral type A7 V.

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 9733B in the constellation Ind. At apparent magnitude 6.9, it is an easy target for binoculars.

Like any astronomical target, GL GJ 9733B 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 9733B is a common star

GL GJ 9733B scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Binary star, White A-type star and Main-sequence star — 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.