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Uncommon variable star 28 EP

HD 112669

RA 194.7072° · Dec -36.9758° · star

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Score breakdown

· 5 badges
28 pts · Uncommon
Uncommon 34 pts → Rare
  • Strongly variable +10
  • Sun-like G-type star +8
  • Variable star +5
  • A named variable star +3
  • Main-sequence star +2
Total score 28

6 more points to reach Rare.

Badges

  • Variable star · +5
  • Sun-like G-type star · +8
  • Main-sequence star · +2
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads G5V — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.
  • 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 9.6 you'll want a small backyard telescope, over in Centaurus.
  • 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 April — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

absmag
4.936
bv
0.649
constellation
Cen
dist ly
278.0529
luminosity
0.9238
mag
9.59
name
HD 112669
spect
G5V
var amplitude
0.55
var designation
V839
var max
9.45
var min
10

About HD 112669

HD 112669 is an uncommon variable star. It lies about 278.1 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 9.59 and has spectral type G5V.

Its spectrum reads G5V — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 112669 in the constellation Cen. At apparent magnitude 9.59, a small backyard telescope will bring it into view.

Like any astronomical target, HD 112669 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 112669 is an uncommon variable star

HD 112669 scores 28 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 6 points would lift it into a rarer tier.

That score comes from 5 science badges — Variable star, Sun-like G-type star, Main-sequence star, Strongly 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.