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Uncommon variable star 25 EP

HIP 106574

RA 323.7611° · Dec 34.5959° · star

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Score breakdown

· 5 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Strongly variable +10
  • Variable star +5
  • White A-type star +5
  • A named variable star +3
  • Main-sequence star +2
Total score 25

9 more points to reach Rare.

Badges

  • Variable star · +5
  • White A-type star · +5
  • Main-sequence star · +2
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads A6V — 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 on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.
  • 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 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
4.42
bv
0.394
constellation
Cyg
dist ly
546.325
luminosity
1.4859
mag
10.54
name
HIP 106574
spect
A6V
var amplitude
0.57
var designation
DK
var max
10.372
var min
10.942

About HIP 106574

HIP 106574 is an uncommon variable star. It lies about 546.3 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 10.54 and has spectral type A6V.

Its spectrum reads A6V — 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 HIP 106574 in the constellation Cyg. At apparent magnitude 10.54, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 106574 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 HIP 106574 is an uncommon variable star

HIP 106574 scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.

That score comes from 5 science badges — Variable star, White A-type star, Main-sequence 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.