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Uncommon variable star 29 EP

HD 293782

RA 76.1250° · Dec -3.7873° · star

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Score breakdown

· 5 badges
29 pts · Uncommon
Uncommon 34 pts → Rare
  • Strongly variable +10
  • In Orion's hunting ground +6
  • Variable star +5
  • White A-type star +5
  • A named variable star +3
Total score 29

5 more points to reach Rare.

Badges

  • Variable star · +5
  • In Orion's hunting ground · +6
  • White A-type star · +5
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads A2e — 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.
  • 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 10.5 you'll want a small backyard telescope, over in Orion.
  • 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 December — that's when to go looking.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 16.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
3.273
bv
0.381
constellation
Ori
dist ly
913.6021
luminosity
4.2737
mag
10.51
name
HD 293782
spect
A2e
var amplitude
1.21
var designation
UX
var max
9.935
var min
11.145

About HD 293782

HD 293782 is an uncommon variable star. It lies about 913.6 light-years from Earth, sits in the constellation Ori, shines at apparent magnitude 10.51 and has spectral type A2e.

Its spectrum reads A2e — 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 HD 293782 in the constellation Ori. At apparent magnitude 10.51, a small backyard telescope will bring it into view.

Like any astronomical target, HD 293782 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 293782 is an uncommon variable star

HD 293782 scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.

That score comes from 5 science badges — Variable star, In Orion's hunting ground, White A-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.