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Uncommon variable star 24 EP

GL Gl 113A

RA 42.0380° · Dec 27.0686° · star

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Score breakdown

· 7 badges
24 pts · Uncommon
Uncommon 34 pts → Rare
  • Binary star +6
  • Variable star +5
  • On the zodiac +3
  • Orange K-type star +3
  • A named variable star +3
  • Main-sequence star +2
  • Barely variable (under 0.05 mag) +2
Total score 24

10 more points to reach Rare.

Badges

  • Variable star · +5
  • Binary star · +6
  • On the zodiac · +3
  • Orange K-type star · +3
  • Main-sequence star · +2
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

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 K1V — 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.
  • 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 7.6 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Aries.
  • 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 November — that's when to go looking.

Properties

absmag
5.602
binary
yes
bv
0.82
constellation
Ari
dist ly
80.3537
luminosity
0.5003
mag
7.56
name
GL Gl 113A
spect
K1V
var amplitude
0.03
var designation
BC
var max
7.546
var min
7.576

About GL Gl 113A

GL Gl 113A is an uncommon variable star. It lies about 80.4 light-years from Earth, sits in the constellation Ari, shines at apparent magnitude 7.56 and has spectral type K1V.

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 113A in the constellation Ari. At apparent magnitude 7.56, it is an easy target for binoculars.

Like any astronomical target, GL Gl 113A 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 113A is an uncommon variable star

GL Gl 113A scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.

That score comes from 7 science badges — Variable star, Binary star, On the zodiac, Orange K-type star, Main-sequence star, Barely variable (under 0.05 mag) 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.