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Common star 17 EP

HD 176021

RA 285.6562° · Dec -64.9254° · star

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Score breakdown

· 3 badges
17 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • Giant star +6
  • Star +3
Total score 17

5 more points to reach Uncommon.

Badges

  • Star · +3
  • Sun-like G-type star · +8
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads G0/G1III — a G-type star: the very same spectral class as our own 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 7.6 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Pavo.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around July — 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. ≈ 3 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 268.3 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
3.991
bv
0.601
constellation
Pav
dist ly
171.8418
luminosity
2.206
mag
7.6
name
HD 176021
spect
G0/G1III

About HD 176021

HD 176021 is a common star. It lies about 171.8 light-years from Earth, sits in the constellation Pav, shines at apparent magnitude 7.6 and has spectral type G0/G1III.

Its spectrum reads G0/G1III — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 176021 in the constellation Pav. At apparent magnitude 7.6, it is an easy target for binoculars.

Like any astronomical target, HD 176021 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 176021 is a common star

HD 176021 scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Sun-like G-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.