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Common star 19 EP

GL GJ 4021B

RA 264.6677° · Dec 61.2341° · star

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Score breakdown

· 4 badges
19 pts · Common
Common 22 pts → Uncommon
  • Binary star +6
  • Intrinsically feeble (Mv > +12) +6
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 19

3 more points to reach Uncommon.

Badges

  • Star · +3
  • Binary star · +6
  • Never sets (northern circumpolar) · +4
  • 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.

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 14.7 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Draco.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around June — 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).
  • Fastest probe ever. ≈ 124.2 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
12.764
binary
yes
constellation
Dra
dist ly
79.5501
luminosity
0.0007
mag
14.7
name
GL GJ 4021B

About GL GJ 4021B

GL GJ 4021B is a common star. It lies about 79.6 light-years from Earth, sits in the constellation Dra and shines at apparent magnitude 14.7.

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 4021B in the constellation Dra. At apparent magnitude 14.7, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, GL GJ 4021B 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 4021B is a common star

GL GJ 4021B scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Binary star, Never sets (northern circumpolar) 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.