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Uncommon variable star 27 EP

HR 958

RA 48.1099° · Dec 6.6609° · star

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Score breakdown

· 6 badges
27 pts · Uncommon
Uncommon 34 pts → Rare
  • Naked-eye visible +8
  • Giant star +6
  • Variable star +5
  • Orange K-type star +3
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 27

7 more points to reach Rare.

Badges

  • Variable star · +5
  • Naked-eye visible · +8
  • Orange K-type star · +3
  • Giant star · +6
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K1IIIpe+... — 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 a giant. It has already exhausted its core hydrogen and swollen up enormously in response.
  • 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 5.5 you can see it with your own eyes from a dark site, over in Cetus.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around November — that's when to go looking.

Could we get there?

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

Properties

absmag
-1.268
bv
1.011
constellation
Cet
dist ly
753.2472
luminosity
280.0271
mag
5.55
name
HR 958
spect
K1IIIpe+...
var amplitude
0.04
var designation
EL
var max
5.532
var min
5.572

About HR 958

HR 958 is an uncommon variable star. It lies about 753.2 light-years from Earth, sits in the constellation Cet, shines at apparent magnitude 5.55 and has spectral type K1IIIpe+....

Its spectrum reads K1IIIpe+... — 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 HR 958 in the constellation Cet. At apparent magnitude 5.55, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 958 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 HR 958 is an uncommon variable star

HR 958 scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.

That score comes from 6 science badges — Variable star, Naked-eye visible, Orange K-type star, Giant star, Barely variable (under 0.05 mag) 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.