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Trash star 10 EP

HD 5621

RA 15.9143° · Dec 84.6069° · star

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Score breakdown

· 3 badges
10 pts · Trash
Trash 15 pts → Common
  • Never sets (northern circumpolar) +4
  • Star +3
  • Yellow-white F-type star +3
Total score 10

5 more points to reach Common.

Badges

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

Trivia

What it actually is

  • Spectral class. Its spectrum reads F5 — an F-type star — a little hotter, whiter and shorter-lived 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 6.7 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Cepheus.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • 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. ≈ 8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 710.3 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
1.018
bv
0.246
constellation
Cep
dist ly
454.8898
luminosity
34.1036
mag
6.74
name
HD 5621
spect
F5

About HD 5621

HD 5621 is a trash star. It lies about 454.9 light-years from Earth, sits in the constellation Cep, shines at apparent magnitude 6.74 and has spectral type F5.

Its spectrum reads F5 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 5621 in the constellation Cep. At apparent magnitude 6.74, it is an easy target for binoculars.

Like any astronomical target, HD 5621 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 5621 is a trash star

HD 5621 scores 10 points on Spacedle's rarity scale, which places it in the trash tier. Another 5 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Never sets (northern circumpolar) and Yellow-white F-type star — 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.