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Epic variable star 60 EP

22 Vul

RA 303.8760° · Dec 23.5089° · star

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Score breakdown

· 8 badges
60 pts · Epic
Epic 78 pts → Anomaly
  • Supergiant +18
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Sun-like G-type star +8
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 60

18 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • Sun-like G-type star · +8
  • Supergiant · +18
  • Intrinsically luminous (Mv < −2) · +10
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads G2Ib SB — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a supergiant, hundreds of times wider than the Sun.
  • 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. 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 5.2 you can see it with your own eyes from a dark site, over in Vulpecula.
  • 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 July — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Properties

absmag
-3.668
bv
1.016
constellation
Vul
dist ly
1918.5647
luminosity
2553.8771
mag
5.18
name
22 Vul
spect
G2Ib SB
var amplitude
0.02
var designation
QS
var max
5.169
var min
5.189

About 22 Vul

22 Vul is an epic variable star. It lies about 1,918.6 light-years from Earth, sits in the constellation Vul, shines at apparent magnitude 5.18 and has spectral type G2Ib SB.

Its spectrum reads G2Ib SB — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for 22 Vul in the constellation Vul. At apparent magnitude 5.18, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 22 Vul 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 22 Vul is an epic variable star

22 Vul scores 60 points on Spacedle's rarity scale, which places it in the epic tier. Another 18 points would lift it into a rarer tier.

That score comes from 8 science badges — Variable star, Distant (over 1,000 light-years), Naked-eye visible, Sun-like G-type star, Supergiant, Intrinsically luminous (Mv < −2), 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.