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Rare star 37 EP

GL Gl 570B

RA 224.3604° · Dec -21.4115° · star

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Score breakdown

· 7 badges
37 pts · Rare
Rare 50 pts → Epic
  • Nearby (<25 ly) +12
  • Deep red star +8
  • Binary star +6
  • Star +3
  • On the zodiac +3
  • Orange K-type star +3
  • Main-sequence star +2
Total score 37

13 more points to reach Epic.

Badges

  • Star · +3
  • Nearby (<25 ly) · +12
  • Binary star · +6
  • On the zodiac · +3
  • Orange K-type star · +3
  • Main-sequence star · +2
  • Deep red star · +8

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 K5V — 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 Libra.
  • 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
9.146
binary
yes
bv
1.519
constellation
Lib
dist ly
19.3254
luminosity
0.0191
mag
8.01
name
GL Gl 570B
spect
K5V

About GL Gl 570B

GL Gl 570B is a rare star. It lies about 19.3 light-years from Earth, sits in the constellation Lib, shines at apparent magnitude 8.01 and has spectral type K5V.

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 570B in the constellation Lib. At apparent magnitude 8.01, it is an easy target for binoculars.

Like any astronomical target, GL Gl 570B 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 570B is a rare star

GL Gl 570B scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 13 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Nearby (<25 ly), Binary star, On the zodiac, Orange K-type star, Main-sequence star and Deep red 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.