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Trash star 13 EP

HIP 18737

RA 60.2066° · Dec 61.2907° · star

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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 1.2 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 B5... — 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 9.7 you'll want a small backyard telescope, over in Camelopardalis.
  • 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 November — that's when to go looking.

What's in a name

  • Its catalogue. The HIP number comes from Hipparcos, the ESA satellite that between 1989 and 1993 pinned down 118,000 stars precisely enough to triangulate their distances.

Properties

absmag
-10.35
constellation
Cam
luminosity
1202264.4346
mag
9.65
name
HIP 18737
spect
B5...

About HIP 18737

HIP 18737 is a trash star. It sits in the constellation Cam, shines at apparent magnitude 9.65 and has spectral type B5....

Its spectrum reads B5... — 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 18737 in the constellation Cam. At apparent magnitude 9.65, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 18737 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 18737 is a trash star

HIP 18737 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.