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Uncommon variable star 25 EP

HD 348635

RA 276.4113° · Dec 18.2945° · star

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Score breakdown

· 5 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Sun-like G-type star +8
  • Variable star +5
  • Subgiant (leaving the main sequence) +5
  • Gently variable +4
  • A named variable star +3
Total score 25

9 more points to reach Rare.

Badges

  • Variable star · +5
  • Sun-like G-type star · +8
  • Subgiant (leaving the main sequence) · +5
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads G2IVv comp — a G-type star: the very same spectral class as our own Sun.
  • 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 9.7 you'll want a small backyard telescope, over in Hercules.
  • 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 June — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

absmag
2.771
bv
0.768
constellation
Her
dist ly
774.7174
luminosity
6.7858
mag
9.65
name
HD 348635
spect
G2IVv comp
var amplitude
0.25
var designation
AW
var max
9.543
var min
9.793

About HD 348635

HD 348635 is an uncommon variable star. It lies about 774.7 light-years from Earth, sits in the constellation Her, shines at apparent magnitude 9.65 and has spectral type G2IVv comp.

Its spectrum reads G2IVv comp — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 348635 in the constellation Her. At apparent magnitude 9.65, a small backyard telescope will bring it into view.

Like any astronomical target, HD 348635 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 348635 is an uncommon variable star

HD 348635 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, Sun-like G-type star, Subgiant (leaving the main sequence), Gently 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.