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Uncommon variable star 27 EP

HIP 107899

RA 327.9227° · Dec 43.1340° · star

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

Getting there

  • Aboard Voyager 1. ≈ 29.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.6
bv
0.939
constellation
Cyg
dist ly
1672.5948
luminosity
50.1187
mag
9.15
name
HIP 107899
spect
F7
var amplitude
0.57
var designation
VZ
var max
8.706
var min
9.276

About HIP 107899

HIP 107899 is an uncommon variable star. It lies about 1,672.6 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 9.15 and has spectral type F7.

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

How to see it

Look for HIP 107899 in the constellation Cyg. At apparent magnitude 9.15, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 107899 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 107899 is an uncommon variable star

HIP 107899 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.