← Back to dex
Trash star 13 EP

HIP 107207

RA 325.6918° · Dec 66.0872° · star

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

Computing the sky for your location…

Score breakdown

· 3 badges
13 pts · Trash
Trash 15 pts → Common
  • Hot blue B-type star +6
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 13

2 more points to reach Common.

Badges

  • Star · +3
  • Never sets (northern circumpolar) · +4
  • Hot blue B-type star · +6

Trivia

Hard to believe

  • True brightness. It pours out about 398.1 thousand 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 B2nne — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.

Find it in the sky

  • How to spot it. At magnitude 10.8 you'll want a small backyard telescope, over in Cepheus.
  • 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 August — that's when to go looking.

Its true colour

  • Its true colour. Measured through blue and visual filters it comes out yellow-white (B−V 0.4) — a shade brighter and crisper than our own Sun.
  • 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 6730 K, against the Sun's 5778 K.

Properties

absmag
-9.17
bv
0.429
constellation
Cep
luminosity
405508.5354
mag
10.83
name
HIP 107207
spect
B2nne

About HIP 107207

HIP 107207 is a trash star. It sits in the constellation Cep, shines at apparent magnitude 10.83 and has spectral type B2nne.

Its spectrum reads B2nne — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.

How to see it

Look for HIP 107207 in the constellation Cep. At apparent magnitude 10.83, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 107207 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 HIP 107207 is a trash star

HIP 107207 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 3 science badges — Star, Never sets (northern circumpolar) and Hot blue B-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.