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Uncommon variable star 31 EP

GL Gl 654.1

RA 256.3201° · Dec 0.7026° · star

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Score breakdown

· 6 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Fades out of naked-eye view +16
  • Variable star +5
  • Yellow-white F-type star +3
  • A named variable star +3
  • Main-sequence star +2
  • Barely variable (under 0.05 mag) +2
Total score 31

3 more points to reach Rare.

Badges

  • Variable star · +5
  • Yellow-white F-type star · +3
  • Main-sequence star · +2
  • Barely variable (under 0.05 mag) · +2
  • Fades out of naked-eye view · +16
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads F9V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • 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 6 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Ophiuchus.
  • 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 June — that's when to go looking.

Could we get there?

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

Properties

absmag
4.424
bv
0.578
constellation
Oph
dist ly
67.4014
luminosity
1.4805
mag
6
name
GL Gl 654.1
spect
F9V
var amplitude
0.03
var designation
V2213
var max
5.991
var min
6.021

About GL Gl 654.1

GL Gl 654.1 is an uncommon variable star. It lies about 67.4 light-years from Earth, sits in the constellation Oph, shines at apparent magnitude 6 and has spectral type F9V.

Its spectrum reads F9V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for GL Gl 654.1 in the constellation Oph. At apparent magnitude 6, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, GL Gl 654.1 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 654.1 is an uncommon variable star

GL Gl 654.1 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 6 science badges — Variable star, Yellow-white F-type star, Main-sequence star, Barely variable (under 0.05 mag), Fades out of naked-eye view 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.