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Epic variable star 51 EP

HR 4050

RA 154.2708° · Dec -61.3323° · star

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Score breakdown

· 8 badges
51 pts · Epic
Epic 78 pts → Anomaly
  • Bright giant +12
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Deep red star +8
  • Variable star +5
  • Orange K-type star +3
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 51

27 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Naked-eye visible · +8
  • Orange K-type star · +3
  • Bright giant · +12
  • Deep red star · +8
  • Intrinsically luminous (Mv < −2) · +10
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K3II — 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 bright giant, well on its way to the largest stars there are.
  • 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 3.4 you can see it with your own eyes from a dark site, over in Carina.
  • 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 February — that's when to go looking.

Could we get there?

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

Properties

absmag
-3.133
bv
1.541
constellation
Car
dist ly
657.5726
luminosity
1560.2709
mag
3.39
name
HR 4050
spect
K3II
var amplitude
0.02
var designation
V337
var max
3.381
var min
3.401

About HR 4050

HR 4050 is an epic variable star. It lies about 657.6 light-years from Earth, sits in the constellation Car, shines at apparent magnitude 3.39 and has spectral type K3II.

Its spectrum reads K3II — 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 HR 4050 in the constellation Car. At apparent magnitude 3.39, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 4050 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 HR 4050 is an epic variable star

HR 4050 scores 51 points on Spacedle's rarity scale, which places it in the epic tier. Another 27 points would lift it into a rarer tier.

That score comes from 8 science badges — Variable star, Naked-eye visible, Orange K-type star, Bright giant, Deep red star, Intrinsically luminous (Mv < −2), Barely variable (under 0.05 mag) 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.