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Epic variable star 51 EP

GL Gl 752A

RA 289.2302° · Dec 5.1689° · star

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Score breakdown

· 9 badges
51 pts · Epic
Epic 78 pts → Anomaly
  • Nearby (<25 ly) +12
  • Deep red star +8
  • Binary star +6
  • 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 51

27 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Nearby (<25 ly) · +12
  • Binary star · +6
  • 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 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 M3.5V — 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 9.1 you'll want a small backyard telescope, over in Aquila.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around July — that's when to go looking.

Properties

absmag
10.277
binary
yes
bv
1.464
constellation
Aql
dist ly
19.145
luminosity
0.0067
mag
9.12
name
GL Gl 752A
spect
M3.5V
var amplitude
0.07
var designation
V1428
var max
9.084
var min
9.154

About GL Gl 752A

GL Gl 752A is an epic variable star. It lies about 19.1 light-years from Earth, sits in the constellation Aql, shines at apparent magnitude 9.12 and has spectral type M3.5V.

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 752A in the constellation Aql. At apparent magnitude 9.12, a small backyard telescope will bring it into view.

Like any astronomical target, GL Gl 752A 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 752A is an epic variable star

GL Gl 752A scores 51 points on Spacedle's rarity scale, which places it in the epic tier. Another 27 points would lift it into a rarer tier.

That score comes from 9 science badges — Variable star, Nearby (<25 ly), Binary star, Cool red M-type star, Main-sequence star, Deep red star, Red dwarf and Gently variable — 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.