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Rare variable star 48 EP

HIP 113715

RA 345.4561° · Dec 45.8859° · star

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Score breakdown

· 5 badges
48 pts · Rare
Rare 50 pts → Epic
  • Carbon star (sooty red) +24
  • Strongly variable +10
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • A named variable star +3
Total score 48

2 more points to reach Epic.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Carbon star (sooty red) · +24
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads C3.4v — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
  • 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 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
1.143
constellation
And
dist ly
1647.2525
luminosity
30.3948
mag
9.66
name
HIP 113715
spect
C3.4v
var amplitude
0.64
var designation
VY
var max
9.206
var min
9.846

About HIP 113715

HIP 113715 is a rare variable star. It lies about 1,647.3 light-years from Earth, sits in the constellation And, shines at apparent magnitude 9.66 and has spectral type C3.4v.

Its spectrum reads C3.4v — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.

How to see it

Look for HIP 113715 in the constellation And. At apparent magnitude 9.66, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 113715 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 113715 is a rare variable star

HIP 113715 scores 48 points on Spacedle's rarity scale, which places it in the rare tier. Another 2 points would lift it into a rarer tier.

That score comes from 5 science badges — Variable star, Distant (over 1,000 light-years), Carbon star (sooty red), 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.