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Trash star 11 EP

HD 112795

RA 195.0848° · Dec -64.2225° · star

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Score breakdown

· 3 badges
11 pts · Trash
Trash 15 pts → Common
  • Subgiant (leaving the main sequence) +5
  • Star +3
  • Yellow-white F-type star +3
Total score 11

4 more points to reach Common.

Badges

  • Star · +3
  • Yellow-white F-type star · +3
  • Subgiant (leaving the main sequence) · +5

Trivia

Hard to believe

  • True brightness. It pours out about 1.5 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 F5:IV/V+... — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

Find it in the sky

  • How to spot it. At magnitude 9.4 you'll want a small backyard telescope, over in Centaurus.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around April — that's when to go looking.

Its true colour

  • Its true colour. Measured through blue and visual filters it comes out yellow (B−V 0.6) — almost exactly the Sun's own shade — a stellar twin in colour, if not in size.
  • 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 5840 K, against the Sun's 5778 K.

Properties

absmag
-10.58
bv
0.633
constellation
Cen
luminosity
1485935.6423
mag
9.42
name
HD 112795
spect
F5:IV/V+...

About HD 112795

HD 112795 is a trash star. It sits in the constellation Cen, shines at apparent magnitude 9.42 and has spectral type F5:IV/V+....

Its spectrum reads F5:IV/V+... — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 112795 in the constellation Cen. At apparent magnitude 9.42, a small backyard telescope will bring it into view.

Like any astronomical target, HD 112795 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 112795 is a trash star

HD 112795 scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Yellow-white F-type star and Subgiant (leaving the main sequence) — 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.