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Rare star 44 EP

HR 7633

RA 298.9808° · Dec 58.8460° · star

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Score breakdown

· 6 badges
44 pts · Rare
Rare 50 pts → Epic
  • Bright giant +12
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Deep red star +8
  • Star +3
  • Orange K-type star +3
Total score 44

6 more points to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Orange K-type star · +3
  • Bright giant · +12
  • Deep red star · +8
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads K5II-III — 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 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 5 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. ≈ 16.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-2.263
bv
1.584
constellation
Cyg
dist ly
916.1686
luminosity
700.1644
mag
4.98
name
HR 7633
spect
K5II-III

About HR 7633

HR 7633 is a rare star. It lies about 916.2 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 4.98 and has spectral type K5II-III.

Its spectrum reads K5II-III — 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 HR 7633 in the constellation Cyg. At apparent magnitude 4.98, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 7633 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 HR 7633 is a rare star

HR 7633 scores 44 points on Spacedle's rarity scale, which places it in the rare tier. Another 6 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Naked-eye visible, Orange K-type star, Bright giant, Deep red star 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.