About HIP 90658
HIP 90658 is a trash star. It sits in the constellation Pav, shines at apparent magnitude 12.2 and has spectral type Gp.
Its spectrum reads Gp — a G-type star: the very same spectral class as our own Sun.
Trash star 11 EP
HIP 90658
RA 277.4738° · Dec -73.2021° · star
Score breakdown
· 2 badgesTrash 15 pts → Common
- Sun-like G-type star +8
- Star +3
Total score 11
4 more points to reach Common.
Badges
- Star · +3
- Sun-like G-type star · +8
Trivia
Hard to believe
- True brightness. It pours out about 112.7 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 Gp — a G-type star: the very same spectral class as our own Sun.
Find it in the sky
- How to spot it. At magnitude 12.2 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Pavo.
- 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 June — 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
- -7.8
- constellation
- Pav
- luminosity
- 114815.3621
- mag
- 12.2
- name
- HIP 90658
- spect
- Gp
How to see it
Look for HIP 90658 in the constellation Pav. At apparent magnitude 12.2, it takes a larger telescope or a long-exposure image to capture.
Like any astronomical target, HIP 90658 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 90658 is a trash star
HIP 90658 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 2 science badges — Star and Sun-like G-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.