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Trash star 12 EP

HD 217793

RA 345.8916° · Dec -36.7417° · star

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Score breakdown

· 3 badges
12 pts · Trash
Trash 15 pts → Common
  • Giant star +6
  • Star +3
  • Orange K-type star +3
Total score 12

3 more points to reach Common.

Badges

  • Star · +3
  • Orange K-type star · +3
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads K2/K3III — 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 9 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Grus.
  • 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 September — 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. ≈ 11 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 973.7 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
2.573
bv
1.355
constellation
Gru
dist ly
623.6253
luminosity
8.1433
mag
8.98
name
HD 217793
spect
K2/K3III

About HD 217793

HD 217793 is a trash star. It lies about 623.6 light-years from Earth, sits in the constellation Gru, shines at apparent magnitude 8.98 and has spectral type K2/K3III.

Its spectrum reads K2/K3III — 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 217793 in the constellation Gru. At apparent magnitude 8.98, it is an easy target for binoculars.

Like any astronomical target, HD 217793 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 217793 is a trash star

HD 217793 scores 12 points on Spacedle's rarity scale, which places it in the trash tier. Another 3 points would lift it into a rarer tier.

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