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Epic variable star 50 EP

HD 192163

RA 303.0273° · Dec 38.3549° · star

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Score breakdown

· 5 badges
50 pts · Epic
Epic 78 pts → Anomaly
  • Wolf-Rayet star (shedding itself) +34
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 50

28 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Wolf-Rayet star (shedding itself) · +34
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads WN... — a Wolf-Rayet star: a stellar monster shedding its own outer layers in a ferocious wind, on its way to a supernova.
  • 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 7.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Cygnus.
  • 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.

Getting there

  • Aboard Voyager 1. ≈ 41.5 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-1.801
bv
0.009
constellation
Cyg
dist ly
2363.4493
luminosity
457.5094
mag
7.5
name
HD 192163
spect
WN...
var amplitude
0.04
var designation
V1770
var max
7.478
var min
7.518

About HD 192163

HD 192163 is an epic variable star. It lies about 2,363.4 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 7.5 and has spectral type WN....

Its spectrum reads WN... — a Wolf-Rayet star: a stellar monster shedding its own outer layers in a ferocious wind, on its way to a supernova.

How to see it

Look for HD 192163 in the constellation Cyg. At apparent magnitude 7.5, it is an easy target for binoculars.

Like any astronomical target, HD 192163 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 HD 192163 is an epic variable star

HD 192163 scores 50 points on Spacedle's rarity scale, which places it in the epic tier. Another 28 points would lift it into a rarer tier.

That score comes from 5 science badges — Variable star, Distant (over 1,000 light-years), Wolf-Rayet star (shedding itself), 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.