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Rare variable star 48 EP

HD 160371

RA 265.2439° · Dec -32.2145° · star

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Score breakdown

· 8 badges
48 pts · Rare
Rare 50 pts → Epic
  • Fades out of naked-eye view +16
  • Deep red star +8
  • Giant star +6
  • Variable star +5
  • Gently variable +4
  • On the zodiac +3
  • Orange K-type star +3
  • A named variable star +3
Total score 48

2 more points to reach Epic.

Badges

  • Variable star · +5
  • On the zodiac · +3
  • Orange K-type star · +3
  • Giant star · +6
  • Deep red star · +8
  • Gently variable · +4
  • Fades out of naked-eye view · +16
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K3III + (G) — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • 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 6 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Scorpius.
  • Southern sky. It rides the southern half of the sky — an easier target the further south 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
-0.905
bv
1.673
constellation
Sco
dist ly
787.8164
luminosity
200.4472
mag
6.01
name
HD 160371
spect
K3III + (G)
var amplitude
0.14
var designation
BM
var max
5.931
var min
6.071

About HD 160371

HD 160371 is a rare variable star. It lies about 787.8 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 6.01 and has spectral type K3III + (G).

Its spectrum reads K3III + (G) — 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 HD 160371 in the constellation Sco. At apparent magnitude 6.01, it is an easy target for binoculars.

Like any astronomical target, HD 160371 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 160371 is a rare variable star

HD 160371 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 8 science badges — Variable star, On the zodiac, Orange K-type star, Giant star, Deep red star, Gently variable, Fades out of naked-eye view 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.