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Rare star 37 EP

GL GJ 9657A

RA 292.4674° · Dec -26.9856° · star

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Score breakdown

· 7 badges
37 pts · Rare
Rare 50 pts → Epic
  • Naked-eye visible +8
  • Toward the galactic centre +8
  • Binary star +6
  • Giant star +6
  • Star +3
  • On the zodiac +3
  • Orange K-type star +3
Total score 37

13 more points to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Binary star · +6
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • Orange K-type star · +3
  • Giant star · +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.

What it actually is

  • Spectral class. Its spectrum reads K1/K2III — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 5.5 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.

Getting there

  • Aboard Voyager 1. ≈ 4.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
1.181
binary
yes
bv
1.12
constellation
Sgr
dist ly
233.9713
luminosity
29.3495
mag
5.46
name
GL GJ 9657A
spect
K1/K2III

About GL GJ 9657A

GL GJ 9657A is a rare star. It lies about 234 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 5.46 and has spectral type K1/K2III.

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 9657A in the constellation Sgr. At apparent magnitude 5.46, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, GL GJ 9657A 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 9657A is a rare star

GL GJ 9657A 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, Naked-eye visible, Binary star, Toward the galactic centre, On the zodiac, Orange K-type star and Giant 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.