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Uncommon variable star 33 EP

HD 184313

RA 293.4418° · Dec 5.4657° · star

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Score breakdown

· 7 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Deep red star +8
  • Red dwarf +6
  • Variable star +5
  • Cool red M-type star +5
  • Gently variable +4
  • A named variable star +3
  • Main-sequence star +2
Total score 33

1 more point to reach Rare.

Badges

  • Variable star · +5
  • Cool red M-type star · +5
  • Main-sequence star · +2
  • Deep red star · +8
  • Red dwarf · +6
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads M8V — 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 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 6.3 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Aquila.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around July — that's when to go looking.

Could we get there?

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

Properties

absmag
-0.181
bv
1.471
constellation
Aql
dist ly
660.2347
luminosity
102.8964
mag
6.35
name
HD 184313
spect
M8V
var amplitude
0.24
var designation
V450
var max
6.171
var min
6.411

About HD 184313

HD 184313 is an uncommon variable star. It lies about 660.2 light-years from Earth, sits in the constellation Aql, shines at apparent magnitude 6.35 and has spectral type M8V.

Its spectrum reads M8V — 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 184313 in the constellation Aql. At apparent magnitude 6.35, it is an easy target for binoculars.

Like any astronomical target, HD 184313 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 184313 is an uncommon variable star

HD 184313 scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.

That score comes from 7 science badges — Variable star, Cool red M-type star, Main-sequence star, Deep red star, Red dwarf, 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.