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Trash star 6 EP

HD 115721

RA 199.6158° · Dec 39.8983° · star

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Score breakdown

· 2 badges
6 pts · Trash
Trash 15 pts → Common
  • Star +3
  • Orange K-type star +3
Total score 6

9 more points to reach Common.

Badges

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

Trivia

What it actually is

  • Spectral class. Its spectrum reads K0... — 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 8.1 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Canes Venatici.
  • 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. ≈ 4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 354.9 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
3.884
bv
1.068
constellation
CVn
dist ly
227.2864
luminosity
2.4344
mag
8.1
name
HD 115721
spect
K0...

About HD 115721

HD 115721 is a trash star. It lies about 227.3 light-years from Earth, sits in the constellation CVn, shines at apparent magnitude 8.1 and has spectral type K0....

Its spectrum reads K0... — 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 115721 in the constellation CVn. At apparent magnitude 8.1, it is an easy target for binoculars.

Like any astronomical target, HD 115721 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 115721 is a trash star

HD 115721 scores 6 points on Spacedle's rarity scale, which places it in the trash tier. Another 9 points would lift it into a rarer tier.

That score comes from 2 science badges — Star 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.