← Back to dex
Uncommon variable star 27 EP

HD 30282

RA 71.9430° · Dec 36.7228° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 5 badges
27 pts · Uncommon
Uncommon 34 pts → Rare
  • Strongly variable +10
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • Yellow-white F-type star +3
  • A named variable star +3
Total score 27

7 more points to reach Rare.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Yellow-white F-type star · +3
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads F7.5 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • 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 7.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Perseus.
  • 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 December — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 20.7 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.278
bv
0.965
constellation
Per
dist ly
1177.4584
luminosity
112.5123
mag
7.51
name
HD 30282
spect
F7.5
var amplitude
0.81
var designation
AW
var max
7.093
var min
7.903

About HD 30282

HD 30282 is an uncommon variable star. It lies about 1,177.5 light-years from Earth, sits in the constellation Per, shines at apparent magnitude 7.51 and has spectral type F7.5.

Its spectrum reads F7.5 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 30282 in the constellation Per. At apparent magnitude 7.51, it is an easy target for binoculars.

Like any astronomical target, HD 30282 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 30282 is an uncommon variable star

HD 30282 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 5 science badges — Variable star, Distant (over 1,000 light-years), Yellow-white F-type star, Strongly 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.