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Common star 21 EP

HD 236484

RA 9.3732° · Dec 60.3105° · star

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Score breakdown

· 4 badges
21 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • Giant star +6
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 21

1 more point to reach Uncommon.

Badges

  • Star · +3
  • Never sets (northern circumpolar) · +4
  • Sun-like G-type star · +8
  • Giant star · +6

Trivia

Hard to believe

  • True brightness. It pours out about 3.2 million times as much light as the Sun. It only looks ordinary because it is so far away.

What it actually is

  • Spectral class. Its spectrum reads G8III — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

Find it in the sky

  • How to spot it. At magnitude 8.6 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Cassiopeia.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around September — that's when to go looking.

Its true colour

  • Its true colour. Measured through blue and visual filters it comes out orange (B−V 1.1) — cooler than the Sun, and the kind of star that burns steadily for tens of billions of years.

By the numbers

  • Surface temperature. Its colour puts the surface at roughly 4550 K, against the Sun's 5778 K.

Properties

absmag
-11.43
bv
1.082
constellation
Cas
luminosity
3250872.9739
mag
8.57
name
HD 236484
spect
G8III

About HD 236484

HD 236484 is a common star. It sits in the constellation Cas, shines at apparent magnitude 8.57 and has spectral type G8III.

Its spectrum reads G8III — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 236484 in the constellation Cas. At apparent magnitude 8.57, it is an easy target for binoculars.

Like any astronomical target, HD 236484 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 236484 is a common star

HD 236484 scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.

That score comes from 4 science badges — Star, Never sets (northern circumpolar), 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.