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Uncommon variable star 31 EP

HD 36910

RA 83.9936° · Dec 24.7484° · star

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Score breakdown

· 6 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Strongly variable +10
  • Variable star +5
  • White A-type star +5
  • Subgiant (leaving the main sequence) +5
  • On the zodiac +3
  • A named variable star +3
Total score 31

3 more points to reach Rare.

Badges

  • Variable star · +5
  • On the zodiac · +3
  • White A-type star · +5
  • Subgiant (leaving the main sequence) · +5
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads A7IVe — 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 subgiant, caught in the act of leaving the main sequence as the hydrogen in its core runs out.
  • 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 Taurus.
  • 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. Hopelessly far for any craft humanity can build today.

Properties

absmag
5.215
bv
0.696
constellation
Tau
dist ly
368.538
luminosity
0.7145
mag
10.48
name
HD 36910
spect
A7IVe
var amplitude
1.07
var designation
CQ
var max
9.813
var min
10.883

About HD 36910

HD 36910 is an uncommon variable star. It lies about 368.5 light-years from Earth, sits in the constellation Tau, shines at apparent magnitude 10.48 and has spectral type A7IVe.

Its spectrum reads A7IVe — 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 36910 in the constellation Tau. At apparent magnitude 10.48, a small backyard telescope will bring it into view.

Like any astronomical target, HD 36910 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 36910 is an uncommon variable star

HD 36910 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 6 science badges — Variable star, On the zodiac, White A-type star, Subgiant (leaving the main sequence), 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.