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Common variable star 21 EP

HR 8272

RA 324.3662° · Dec 44.6966° · star

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Score breakdown

· 5 badges
21 pts · Common
Common 22 pts → Uncommon
  • Giant star +6
  • Variable star +5
  • White A-type star +5
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 21

1 more point to reach Uncommon.

Badges

  • Variable star · +5
  • White A-type star · +5
  • 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 A7III — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.
  • 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 6.2 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Cygnus.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around August — that's when to go looking.

Could we get there?

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

Properties

absmag
0.052
bv
0.218
constellation
Cyg
dist ly
550.9391
luminosity
83.0233
mag
6.19
name
HR 8272
spect
A7III
var amplitude
0.02
var designation
CP
var max
6.179
var min
6.199

About HR 8272

HR 8272 is a common variable star. It lies about 550.9 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 6.19 and has spectral type A7III.

Its spectrum reads A7III — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

How to see it

Look for HR 8272 in the constellation Cyg. At apparent magnitude 6.19, it is an easy target for binoculars.

Like any astronomical target, HR 8272 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 8272 is a common variable star

HR 8272 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 5 science badges — Variable star, White A-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.