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Rare star 45 EP

GL Gl 783A

RA 302.7995° · Dec -36.1012° · star

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Score breakdown

· 8 badges
45 pts · Rare
Rare 50 pts → Epic
  • Nearby (<25 ly) +12
  • Naked-eye visible +8
  • Toward the galactic centre +8
  • Binary star +6
  • Star +3
  • On the zodiac +3
  • Orange K-type star +3
  • Main-sequence star +2
Total score 45

5 more points to reach Epic.

Badges

  • Star · +3
  • Nearby (<25 ly) · +12
  • Naked-eye visible · +8
  • Binary star · +6
  • Toward the galactic centre · +8
  • 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 5.3 you can see it with your own eyes from a dark site, 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.

Properties

absmag
6.424
binary
yes
bv
0.868
constellation
Sgr
dist ly
19.6183
luminosity
0.2346
mag
5.32
name
GL Gl 783A
spect
K2V

About GL Gl 783A

GL Gl 783A is a rare star. It lies about 19.6 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 5.32 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 Gl 783A in the constellation Sgr. At apparent magnitude 5.32, it can be glimpsed with the unaided eye under dark skies.

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

GL Gl 783A scores 45 points on Spacedle's rarity scale, which places it in the rare tier. Another 5 points would lift it into a rarer tier.

That score comes from 8 science badges — Star, Nearby (<25 ly), Naked-eye visible, Binary star, Toward the galactic centre, 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.