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Uncommon star 24 EP

HD 207277

RA 327.2024° · Dec -39.0794° · star

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Score breakdown

· 3 badges
24 pts · Uncommon
Uncommon 34 pts → Rare
  • Supergiant +18
  • Star +3
  • Orange K-type star +3
Total score 24

10 more points to reach Rare.

Badges

  • Star · +3
  • Orange K-type star · +3
  • Supergiant · +18

Trivia

Hard to believe

  • True brightness. It pours out about 4.7 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 K0Ib/II — 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 supergiant, hundreds of times wider than the Sun.

Find it in the sky

  • How to spot it. At magnitude 8.1 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Grus.
  • 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 August — that's when to go looking.

Its true colour

  • Its true colour. Measured through blue and visual filters it comes out orange (B−V 1.2) — 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 4340 K, against the Sun's 5778 K.

Properties

absmag
-11.86
bv
1.184
constellation
Gru
luminosity
4830588.0204
mag
8.14
name
HD 207277
spect
K0Ib/II

Nearby objects

About HD 207277

HD 207277 is an uncommon star. It sits in the constellation Gru, shines at apparent magnitude 8.14 and has spectral type K0Ib/II.

Its spectrum reads K0Ib/II — 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 207277 in the constellation Gru. At apparent magnitude 8.14, it is an easy target for binoculars.

Like any astronomical target, HD 207277 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 207277 is an uncommon star

HD 207277 scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Orange K-type star and Supergiant — 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.