Common star 15 EP

HIP 110824

RA 336.7812° · Dec 54.1816° · star

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Score breakdown

· 3 badges

15 pts · Common

Common 22 pts → Uncommon

Hot blue B-type star +6
Giant star +6
Star +3

Total score 15

7 more points to reach Uncommon.

Badges

Star · +3
Hot blue B-type star · +6
Giant star · +6

Trivia

Hard to believe

True brightness. It pours out about 559.8 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 B2III — 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.
Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

Find it in the sky

How to spot it. At magnitude 10.5 you'll want a small backyard telescope, over in Lacerta.
Northern sky. It rides the northern half of the sky — an easier target the further north 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) — 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.

Properties

absmag: -9.54
bv: 0.04
constellation: Lac
luminosity: 570164.2723
mag: 10.46
name: HIP 110824
spect: B2III

Nearby objects

About HIP 110824

HIP 110824 is a common star. It sits in the constellation Lac, shines at apparent magnitude 10.46 and has spectral type B2III.

Its spectrum reads B2III — 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 110824 in the constellation Lac. At apparent magnitude 10.46, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 110824 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 110824 is a common star

HIP 110824 scores 15 points on Spacedle's rarity scale, which places it in the common tier. Another 7 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Hot blue B-type star and Giant 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.