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Trash star 10 EP

HD 124640

RA 213.2534° · Dec 55.3254° · star

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Score breakdown

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

5 more points to reach Common.

Badges

  • Star · +3
  • Never sets (northern circumpolar) · +4
  • Orange K-type star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K2... — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

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 8.3 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Ursa Major.
  • 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 April — 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. ≈ 2.2 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 194.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
5.417
bv
0.946
constellation
UMa
dist ly
124.7726
luminosity
0.5932
mag
8.33
name
HD 124640
spect
K2...

About HD 124640

HD 124640 is a trash star. It lies about 124.8 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 8.33 and has spectral type K2....

Its spectrum reads K2... — 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 124640 in the constellation UMa. At apparent magnitude 8.33, it is an easy target for binoculars.

Like any astronomical target, HD 124640 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 124640 is a trash star

HD 124640 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 Orange K-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.