About HIP 40038
HIP 40038 is a trash star. It sits in the constellation Pup and shines at apparent magnitude 10.67.
Its colour puts the surface at roughly 4630 K, against the Sun's 5778 K.
Trash star 3 EP
HIP 40038
RA 122.6786° · Dec -12.6699° · star
Score breakdown
· 1 badgeTrash 15 pts → Common
- Star +3
Total score 3
12 more points to reach Common.
Badges
- Star · +3
Trivia
Hard to believe
- True brightness. It pours out about 461.3 thousand times as much light as the Sun. It only looks ordinary because it is so far away.
Find it in the sky
- How to spot it. At magnitude 10.7 you'll want a small backyard telescope, over in Puppis.
- Southern sky. It rides the southern half of the sky — an easier target the further south you are.
- Best time of year. It stands highest in the middle of the night around January — that's when to go looking.
Its true colour
- Its true colour. Measured through blue and visual filters it comes out orange (B−V 1) — cooler than the Sun, and the kind of star that burns steadily for tens of billions of years.
By the numbers
- Surface temperature. Its colour puts the surface at roughly 4630 K, against the Sun's 5778 K.
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
- -9.33
- bv
- 1.046
- constellation
- Pup
- luminosity
- 469894.1086
- mag
- 10.67
- name
- HIP 40038
How to see it
Look for HIP 40038 in the constellation Pup. At apparent magnitude 10.67, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 40038 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 40038 is a trash star
HIP 40038 scores 3 points on Spacedle's rarity scale, which places it in the trash tier. Another 12 points would lift it into a rarer tier.
That score comes from 1 science badge — 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.