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Rare star 36 EP

41 Cyg

RA 307.3489° · Dec 30.3686° · star

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Score breakdown

· 5 badges
36 pts · Rare
Rare 50 pts → Epic
  • Bright giant +12
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Star +3
  • Yellow-white F-type star +3
Total score 36

14 more points to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Yellow-white F-type star · +3
  • Bright giant · +12
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads F5II — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is a bright giant, well on its way to the largest stars there are.

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 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 13.5 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-2.853
bv
0.404
constellation
Cyg
dist ly
769.236
luminosity
1205.591
mag
4.01
name
41 Cyg
spect
F5II

About 41 Cyg

41 Cyg is a rare star. It lies about 769.2 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 4.01 and has spectral type F5II.

Its spectrum reads F5II — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for 41 Cyg in the constellation Cyg. At apparent magnitude 4.01, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 41 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 41 Cyg is a rare star

41 Cyg scores 36 points on Spacedle's rarity scale, which places it in the rare tier. Another 14 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Naked-eye visible, Yellow-white F-type star, Bright giant and Intrinsically luminous (Mv < −2) — 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.