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Uncommon variable star 25 EP

HD 112269

RA 194.0470° · Dec -57.4704° · star

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Score breakdown

· 6 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Under the Southern Cross +8
  • Variable star +5
  • Gently variable +4
  • Orange K-type star +3
  • A named variable star +3
  • Main-sequence star +2
Total score 25

9 more points to reach Rare.

Badges

  • Variable star · +5
  • Under the Southern Cross · +8
  • Orange K-type star · +3
  • Main-sequence star · +2
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K1V — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • 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 9.3 you'll want a small backyard telescope, over in Crux.
  • 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
5.239
bv
0.627
constellation
Cru
dist ly
212.6178
luminosity
0.6989
mag
9.31
name
HD 112269
spect
K1V
var amplitude
0.12
var designation
DV
var max
9.253
var min
9.373

About HD 112269

HD 112269 is an uncommon variable star. It lies about 212.6 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 9.31 and has spectral type K1V.

Its spectrum reads K1V — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

How to see it

Look for HD 112269 in the constellation Cru. At apparent magnitude 9.31, a small backyard telescope will bring it into view.

Like any astronomical target, HD 112269 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 112269 is an uncommon variable star

HD 112269 scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.

That score comes from 6 science badges — Variable star, Under the Southern Cross, Orange K-type star, Main-sequence star, 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.