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Epic variable star 51 EP

Sheliak

RA 282.5200° · Dec 33.3627° · star

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Score breakdown

· 8 badges
51 pts · Epic
Epic 78 pts → Anomaly
  • Intrinsically luminous (Mv < −2) +10
  • Strongly variable +10
  • Naked-eye visible +8
  • Has a proper name +8
  • Variable star +5
  • White A-type star +5
  • A named variable star +3
  • Main-sequence star +2
Total score 51

27 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Naked-eye visible · +8
  • Has a proper name · +8
  • White A-type star · +5
  • Main-sequence star · +2
  • Intrinsically luminous (Mv < −2) · +10
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads A8:V comp SB — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.
  • 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 3.5 you can see it with your own eyes from a dark site, over in Lyra.
  • 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 16.9 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-3.829
bv
0.003
constellation
Lyr
dist ly
962.1123
luminosity
2962.1019
mag
3.52
name
Sheliak
named
yes
spect
A8:V comp SB
var amplitude
0.93
var designation
Bet
var max
3.329
var min
4.259

About Sheliak

Sheliak is an epic variable star. It lies about 962.1 light-years from Earth, sits in the constellation Lyr, shines at apparent magnitude 3.52 and has spectral type A8:V comp SB.

Its spectrum reads A8:V comp SB — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

How to see it

Look for Sheliak in the constellation Lyr. At apparent magnitude 3.52, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Sheliak 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 Sheliak is an epic variable star

Sheliak 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 8 science badges — Variable star, Naked-eye visible, Has a proper name, White A-type star, Main-sequence star, Intrinsically luminous (Mv < −2), Strongly 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.