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Common star 17 EP

GL GJ 9541B

RA 241.1113° · Dec -11.4499° · star

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Score breakdown

· 5 badges
17 pts · Common
Common 22 pts → Uncommon
  • Binary star +6
  • Star +3
  • On the zodiac +3
  • Orange K-type star +3
  • Main-sequence star +2
Total score 17

5 more points to reach Uncommon.

Badges

  • Star · +3
  • Binary star · +6
  • On the zodiac · +3
  • Orange K-type star · +3
  • 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 K2V — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

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 8 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Scorpius.
  • 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 May — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

absmag
6.25
binary
yes
bv
0.85
constellation
Sco
dist ly
73.7077
luminosity
0.2754
mag
8.02
name
GL GJ 9541B
spect
K2V

About GL GJ 9541B

GL GJ 9541B is a common star. It lies about 73.7 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 8.02 and has spectral type K2V.

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 9541B in the constellation Sco. At apparent magnitude 8.02, it is an easy target for binoculars.

Like any astronomical target, GL GJ 9541B 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 9541B is a common star

GL GJ 9541B scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Binary star, On the zodiac, Orange K-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.