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Uncommon variable star 32 EP

HD 165141

RA 271.7510° · Dec -48.2473° · star

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Score breakdown

· 5 badges
32 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • Sun-like G-type star +8
  • Variable star +5
  • Gently variable +4
  • A named variable star +3
Total score 32

2 more points to reach Rare.

Badges

  • Variable star · +5
  • Sun-like G-type star · +8
  • Bright giant · +12
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads G8/K0II/IIIp — a G-type star: the very same spectral class as our own Sun.
  • It changes. This star does not hold still: its brightness rises and falls on a rhythm of hours, days or years, either pulsing in size or being eclipsed by a companion.

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 7.1 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Ara.
  • 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. ≈ 11.2 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.661
bv
0.989
constellation
Ara
dist ly
635.7818
luminosity
47.3805
mag
7.11
name
HD 165141
spect
G8/K0II/IIIp
var amplitude
0.06
var designation
V832
var max
7.081
var min
7.141

About HD 165141

HD 165141 is an uncommon variable star. It lies about 635.8 light-years from Earth, sits in the constellation Ara, shines at apparent magnitude 7.11 and has spectral type G8/K0II/IIIp.

Its spectrum reads G8/K0II/IIIp — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 165141 in the constellation Ara. At apparent magnitude 7.11, it is an easy target for binoculars.

Like any astronomical target, HD 165141 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 165141 is an uncommon variable star

HD 165141 scores 32 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 2 points would lift it into a rarer tier.

That score comes from 5 science badges — Variable star, Sun-like G-type star, Bright giant, Gently variable and A named variable 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.