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Common star 16 EP

GL GJ 3645

RA 167.4903° · Dec -10.2853° · star

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Score breakdown

· 4 badges
16 pts · Common
Common 22 pts → Uncommon
  • Red dwarf +6
  • Cool red M-type star +5
  • Star +3
  • Main-sequence star +2
Total score 16

6 more points to reach Uncommon.

Badges

  • Star · +3
  • Cool red M-type star · +5
  • Main-sequence star · +2
  • Red dwarf · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads M0V — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
  • 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. 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 10.5 you'll want a small backyard telescope, over in Crater.
  • 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 March — 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. ≈ 2.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
7.699
bv
1.4
constellation
Crt
dist ly
117.4067
luminosity
0.0725
mag
10.48
name
GL GJ 3645
spect
M0V

About GL GJ 3645

GL GJ 3645 is a common star. It lies about 117.4 light-years from Earth, sits in the constellation Crt, shines at apparent magnitude 10.48 and has spectral type M0V.

Its spectrum reads M0V — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

How to see it

Look for GL GJ 3645 in the constellation Crt. At apparent magnitude 10.48, a small backyard telescope will bring it into view.

Like any astronomical target, GL GJ 3645 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 3645 is a common star

GL GJ 3645 scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Cool red M-type star, Main-sequence star and Red dwarf — 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.