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Common star 17 EP

HD 128544

RA 220.7180° · Dec -75.8246° · 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 G8/K0III — 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 7.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Apus.
  • 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 May — 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. ≈ 11.2 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 990.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
1.015
bv
1.011
constellation
Aps
dist ly
634.5447
luminosity
34.1979
mag
7.46
name
HD 128544
spect
G8/K0III

About HD 128544

HD 128544 is a common star. It lies about 634.5 light-years from Earth, sits in the constellation Aps, shines at apparent magnitude 7.46 and has spectral type G8/K0III.

Its spectrum reads G8/K0III — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 128544 in the constellation Aps. At apparent magnitude 7.46, it is an easy target for binoculars.

Like any astronomical target, HD 128544 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 128544 is a common star

HD 128544 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.