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Trash star 11 EP

HD 161523

RA 266.6515° · Dec -16.0036° · star

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Score breakdown

· 3 badges
11 pts · Trash
Trash 15 pts → Common
  • Subgiant (leaving the main sequence) +5
  • Star +3
  • Yellow-white F-type star +3
Total score 11

4 more points to reach Common.

Badges

  • Star · +3
  • Yellow-white F-type star · +3
  • Subgiant (leaving the main sequence) · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads F7/F8IV — 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 8.2 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Serpens.
  • 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 June — 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. ≈ 352.4 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
3.989
bv
0.558
constellation
Ser
dist ly
225.7137
luminosity
2.21
mag
8.19
name
HD 161523
spect
F7/F8IV

Nearby objects

About HD 161523

HD 161523 is a trash star. It lies about 225.7 light-years from Earth, sits in the constellation Ser, shines at apparent magnitude 8.19 and has spectral type F7/F8IV.

Its spectrum reads F7/F8IV — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 161523 in the constellation Ser. At apparent magnitude 8.19, it is an easy target for binoculars.

Like any astronomical target, HD 161523 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 161523 is a trash star

HD 161523 scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Yellow-white F-type star and Subgiant (leaving the main sequence) — 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.