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Uncommon star 22 EP

HD 15000

RA 36.8549° · Dec 59.1056° · star

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Score breakdown

· 4 badges
22 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • Never sets (northern circumpolar) +4
  • Star +3
  • Yellow-white F-type star +3
Total score 22

12 more points to reach Rare.

Badges

  • Star · +3
  • Never sets (northern circumpolar) · +4
  • Yellow-white F-type star · +3
  • Bright giant · +12

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 7.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Cassiopeia.
  • 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 October — 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. ≈ 4.5 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.979
bv
0.409
constellation
Cas
dist ly
256.8159
luminosity
5.6027
mag
7.46
name
HD 15000
spect
F5II

About HD 15000

HD 15000 is an uncommon star. It lies about 256.8 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 7.46 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 HD 15000 in the constellation Cas. At apparent magnitude 7.46, it is an easy target for binoculars.

Like any astronomical target, HD 15000 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 15000 is an uncommon star

HD 15000 scores 22 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 12 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Never sets (northern circumpolar), Yellow-white F-type star and Bright giant — 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.