About HD 63229
HD 63229 is a trash star. It sits in the constellation Mon and shines at apparent magnitude 9.17.
Its colour puts the surface at roughly 4090 K, against the Sun's 5778 K.
Trash star 3 EP
HD 63229
RA 116.8690° · Dec -8.9803° · 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 1.8 million 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 9.2 you'll want a small backyard telescope, over in Monoceros.
- Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
- 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 1.3) — 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 4090 K, against the Sun's 5778 K.
What's in a name
- Its catalogue. The HD number is from the Henry Draper Catalogue, in which Annie Jump Cannon personally classified the spectra of nearly 400,000 stars — still the largest such feat by one person.
Properties
- absmag
- -10.83
- bv
- 1.318
- constellation
- Mon
- luminosity
- 1870682.1404
- mag
- 9.17
- name
- HD 63229
How to see it
Look for HD 63229 in the constellation Mon. At apparent magnitude 9.17, a small backyard telescope will bring it into view.
Like any astronomical target, HD 63229 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 63229 is a trash star
HD 63229 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.