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Uncommon star 24 EP

HD 166751

RA 273.6110° · Dec -47.9544° · star

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Score breakdown

· 3 badges
24 pts · Uncommon
Uncommon 34 pts → Rare
  • Supergiant +18
  • Star +3
  • Orange K-type star +3
Total score 24

10 more points to reach Rare.

Badges

  • Star · +3
  • Orange K-type star · +3
  • Supergiant · +18

Trivia

What it actually is

  • Spectral class. Its spectrum reads K3Ia — 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 luminous supergiant — among the largest and rarest stars in the galaxy.

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 7.3 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Telescopium.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around June — 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. ≈ 12.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.638
bv
1.181
constellation
Tel
dist ly
704.4405
luminosity
48.3949
mag
7.31
name
HD 166751
spect
K3Ia

About HD 166751

HD 166751 is an uncommon star. It lies about 704.4 light-years from Earth, sits in the constellation Tel, shines at apparent magnitude 7.31 and has spectral type K3Ia.

Its spectrum reads K3Ia — 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 HD 166751 in the constellation Tel. At apparent magnitude 7.31, it is an easy target for binoculars.

Like any astronomical target, HD 166751 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 166751 is an uncommon star

HD 166751 scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Orange K-type star and Supergiant — 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.