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Uncommon variable star 33 EP

HIP 1878

RA 5.9295° · Dec 29.4010° · star

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Score breakdown

· 6 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Strongly variable +10
  • Distant (over 1,000 light-years) +6
  • Giant star +6
  • Variable star +5
  • Yellow-white F-type star +3
  • A named variable star +3
Total score 33

1 more point to reach Rare.

Badges

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

Trivia

What it actually is

  • Spectral class. Its spectrum reads F8IIIvar — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.
  • 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 9.7 you'll want a small backyard telescope, over in Andromeda.
  • 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 September — that's when to go looking.

Could we get there?

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

Properties

absmag
0.561
bv
0.442
constellation
And
dist ly
2203.7568
luminosity
51.9517
mag
9.71
name
HIP 1878
spect
F8IIIvar
var amplitude
0.99
var designation
SW
var max
9.055
var min
10.045

About HIP 1878

HIP 1878 is an uncommon variable star. It lies about 2,203.8 light-years from Earth, sits in the constellation And, shines at apparent magnitude 9.71 and has spectral type F8IIIvar.

Its spectrum reads F8IIIvar — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HIP 1878 in the constellation And. At apparent magnitude 9.71, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 1878 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 1878 is an uncommon variable star

HIP 1878 scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.

That score comes from 6 science badges — Variable star, Distant (over 1,000 light-years), Yellow-white F-type star, Giant 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.