← Back to dex
Trash variable star 13 EP

HD 135599

RA 228.9965° · Dec 0.7964° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 4 badges
13 pts · Trash
Trash 15 pts → Common
  • Variable star +5
  • Orange K-type star +3
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 13

2 more points to reach Common.

Badges

  • Variable star · +5
  • Orange K-type star · +3
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K0 — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • 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. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 6.9 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Serpens.
  • 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 May — that's when to go looking.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 908.2 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
5.92
bv
0.83
constellation
Ser
dist ly
51.6804
luminosity
0.3733
mag
6.92
name
HD 135599
spect
K0
var amplitude
0.03
var designation
V379
var max
6.907
var min
6.937

Nearby objects

About HD 135599

HD 135599 is a trash variable star. It lies about 51.7 light-years from Earth, sits in the constellation Ser, shines at apparent magnitude 6.92 and has spectral type K0.

Its spectrum reads K0 — 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 135599 in the constellation Ser. At apparent magnitude 6.92, it is an easy target for binoculars.

Like any astronomical target, HD 135599 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 135599 is a trash variable star

HD 135599 scores 13 points on Spacedle's rarity scale, which places it in the trash tier. Another 2 points would lift it into a rarer tier.

That score comes from 4 science badges — Variable star, Orange K-type star, 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.