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Epic variable star 53 EP

HD 236835

RA 25.7613° · Dec 56.5128° · star

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Score breakdown

· 8 badges
53 pts · Epic
Epic 78 pts → Anomaly
  • Supergiant +18
  • Deep red star +8
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • Cool red M-type star +5
  • Never sets (northern circumpolar) +4
  • Gently variable +4
  • A named variable star +3
Total score 53

25 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Never sets (northern circumpolar) · +4
  • Cool red M-type star · +5
  • Supergiant · +18
  • Deep red star · +8
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads M2Ib — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
  • Where it is in life. It is a supergiant, hundreds of times wider than the Sun.
  • 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 8.9 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Cassiopeia.
  • 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 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
-0.446
bv
2.024
constellation
Cas
dist ly
2380.7007
luminosity
131.3409
mag
8.87
name
HD 236835
spect
M2Ib
var amplitude
0.24
var designation
V595
var max
8.758
var min
8.998

About HD 236835

HD 236835 is an epic variable star. It lies about 2,380.7 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 8.87 and has spectral type M2Ib.

Its spectrum reads M2Ib — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

How to see it

Look for HD 236835 in the constellation Cas. At apparent magnitude 8.87, it is an easy target for binoculars.

Like any astronomical target, HD 236835 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 236835 is an epic variable star

HD 236835 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 8 science badges — Variable star, Distant (over 1,000 light-years), Never sets (northern circumpolar), Cool red M-type star, Supergiant, Deep red star, 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.