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Epic variable star 53 EP

HR 365

RA 19.0496° · Dec 71.7438° · star

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Score breakdown

· 10 badges
53 pts · Epic
Epic 78 pts → Anomaly
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Deep red star +8
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • Never sets (northern circumpolar) +4
  • Gently variable +4
  • Orange K-type star +3
  • A named variable star +3
  • Main-sequence star +2
Total score 53

25 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • Never sets (northern circumpolar) · +4
  • Orange K-type star · +3
  • Main-sequence star · +2
  • Deep red star · +8
  • Intrinsically luminous (Mv < −2) · +10
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K1V — 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 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 5.9 you can see it with your own eyes from a dark site, over in Cassiopeia.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around October — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Properties

absmag
-3.771
bv
2.042
constellation
Cas
dist ly
2764.0338
luminosity
2808.0187
mag
5.87
name
HR 365
spect
K1V
var amplitude
0.1
var designation
V762
var max
5.823
var min
5.923

About HR 365

HR 365 is an epic variable star. It lies about 2,764 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 5.87 and has spectral type K1V.

Its spectrum reads K1V — 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 365 in the constellation Cas. At apparent magnitude 5.87, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 365 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 365 is an epic variable star

HR 365 scores 53 points on Spacedle's rarity scale, which places it in the epic tier. Another 25 points would lift it into a rarer tier.

That score comes from 10 science badges — Variable star, Distant (over 1,000 light-years), Naked-eye visible, Never sets (northern circumpolar), Orange K-type star, Main-sequence star, Deep red star and Intrinsically luminous (Mv < −2) — 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.