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Uncommon variable star 31 EP

HIP 85473

RA 262.0087° · Dec -69.3395° · star

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Score breakdown

· 4 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Dramatic variable (over 2 magnitudes) +20
  • Variable star +5
  • Orange K-type star +3
  • A named variable star +3
Total score 31

3 more points to reach Rare.

Badges

  • Variable star · +5
  • Orange K-type star · +3
  • Dramatic variable (over 2 magnitudes) · +20
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads Ke — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • 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 11.9 you'll want a small backyard telescope, over in Apus.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • 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.

Getting there

  • Aboard Voyager 1. ≈ 11.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
5.418
constellation
Aps
dist ly
648.4216
luminosity
0.5927
mag
11.91
name
HIP 85473
spect
Ke
var amplitude
2.38
var designation
XX
var max
10.538
var min
12.918

About HIP 85473

HIP 85473 is an uncommon variable star. It lies about 648.4 light-years from Earth, sits in the constellation Aps, shines at apparent magnitude 11.91 and has spectral type Ke.

Its spectrum reads Ke — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

How to see it

Look for HIP 85473 in the constellation Aps. At apparent magnitude 11.91, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 85473 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 85473 is an uncommon variable star

HIP 85473 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 4 science badges — Variable star, Orange K-type star, Dramatic variable (over 2 magnitudes) 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.