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Epic star 66 EP

47 Cyg

RA 308.4758° · Dec 35.2509° · star

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Score breakdown

· 7 badges
66 pts · Epic
Epic 78 pts → Anomaly
  • Blindingly luminous (Mv < −5) +20
  • Supergiant +18
  • Naked-eye visible +8
  • Deep red star +8
  • Distant (over 1,000 light-years) +6
  • Star +3
  • Orange K-type star +3
Total score 66

12 more points to reach Anomaly.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • Orange K-type star · +3
  • Supergiant · +18
  • Deep red star · +8
  • Blindingly luminous (Mv < −5) · +20

Trivia

What it actually is

  • Spectral class. Its spectrum reads K2Ib comp — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • Where it is in life. It is a supergiant, hundreds of times wider than the Sun.

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 4.6 you can see it with your own eyes from a dark site, 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. ≈ 48.6 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-5.031
bv
1.593
constellation
Cyg
dist ly
2764.0338
luminosity
8961.8981
mag
4.61
name
47 Cyg
spect
K2Ib comp

About 47 Cyg

47 Cyg is an epic star. It lies about 2,764 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 4.61 and has spectral type K2Ib comp.

Its spectrum reads K2Ib comp — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

How to see it

Look for 47 Cyg in the constellation Cyg. At apparent magnitude 4.61, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 47 Cyg 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 47 Cyg is an epic star

47 Cyg scores 66 points on Spacedle's rarity scale, which places it in the epic tier. Another 12 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Distant (over 1,000 light-years), Naked-eye visible, Orange K-type star, Supergiant, Deep red star and Blindingly luminous (Mv < −5) — 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.