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Trash star 6 EP

HD 207107

RA 326.9710° · Dec -44.8244° · star

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Score breakdown

· 2 badges
6 pts · Trash
Trash 15 pts → Common
  • Star +3
  • Orange K-type star +3
Total score 6

9 more points to reach Common.

Badges

  • Star · +3
  • Orange K-type star · +3

Trivia

Hard to believe

  • True brightness. It pours out about 3.3 million times as much light as the Sun. It only looks ordinary because it is so far away.

What it actually is

  • Spectral class. Its spectrum reads K1/K2 — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

Find it in the sky

  • How to spot it. At magnitude 8.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Grus.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around August — that's when to go looking.

Its true colour

  • Its true colour. Measured through blue and visual filters it comes out brilliant white (B−V 0.2) — hotter and whiter than the Sun, the colour of Sirius or Vega.
  • Why no green stars. No star ever looks green: a surface hot enough to peak in green also floods out plenty of red and blue, and your eye blends the mixture back to white.

By the numbers

  • Surface temperature. Its colour puts the surface at roughly 8010 K, against the Sun's 5778 K.

Properties

absmag
-11.48
bv
0.22
constellation
Gru
luminosity
3404081.897
mag
8.52
name
HD 207107
spect
K1/K2

Nearby objects

About HD 207107

HD 207107 is a trash star. It sits in the constellation Gru, shines at apparent magnitude 8.52 and has spectral type K1/K2.

Its spectrum reads K1/K2 — 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 207107 in the constellation Gru. At apparent magnitude 8.52, it is an easy target for binoculars.

Like any astronomical target, HD 207107 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 207107 is a trash star

HD 207107 scores 6 points on Spacedle's rarity scale, which places it in the trash tier. Another 9 points would lift it into a rarer tier.

That score comes from 2 science badges — Star and Orange K-type 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.