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Uncommon variable star 33 EP

GL Gl 875.1

RA 342.9728° · Dec 31.7542° · star

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Score breakdown

· 7 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Deep red star +8
  • Red dwarf +6
  • Variable star +5
  • Cool red M-type star +5
  • Gently variable +4
  • A named variable star +3
  • Main-sequence star +2
Total score 33

1 more point to reach Rare.

Badges

  • Variable star · +5
  • Cool red M-type star · +5
  • Main-sequence star · +2
  • Deep red star · +8
  • Red dwarf · +6
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads M3.5Ve — 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.
  • It changes. This star does not hold still: its brightness rises and falls on a rhythm of hours, days or years, either pulsing in size or being eclipsed by a companion.

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 11.7 you'll want a small backyard telescope, over in Pegasus.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around September — that's when to go looking.

Could we get there?

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

Properties

absmag
10.847
bv
1.5
constellation
Peg
dist ly
47.4201
luminosity
0.004
mag
11.66
name
GL Gl 875.1
spect
M3.5Ve
var amplitude
0.17
var designation
GT
var max
11.585
var min
11.755

About GL Gl 875.1

GL Gl 875.1 is an uncommon variable star. It lies about 47.4 light-years from Earth, sits in the constellation Peg, shines at apparent magnitude 11.66 and has spectral type M3.5Ve.

Its spectrum reads M3.5Ve — 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 Gl 875.1 in the constellation Peg. At apparent magnitude 11.66, a small backyard telescope will bring it into view.

Like any astronomical target, GL Gl 875.1 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 875.1 is an uncommon variable star

GL Gl 875.1 scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.

That score comes from 7 science badges — Variable star, Cool red M-type star, Main-sequence star, Deep red star, Red dwarf, Gently variable and A named variable 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.