About HIP 40816
HIP 40816 is a common star. It lies about 2,912.1 light-years from Earth, sits in the constellation Pup and shines at apparent magnitude 9.43.
Its colour puts the surface at roughly 3440 K, against the Sun's 5778 K.
Common star 17 EP
HIP 40816
RA 124.9577° · Dec -35.0653° · star
Score breakdown
· 3 badgesCommon 22 pts → Uncommon
- Deep red star +8
- Distant (over 1,000 light-years) +6
- Star +3
Total score 17
5 more points to reach Uncommon.
Badges
- Star · +3
- Distant (over 1,000 light-years) · +6
- Deep red star · +8
Trivia
Sense of scale
- In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.
Find it in the sky
- How to spot it. At magnitude 9.4 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.
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 51.2 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 4.5 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 29.1 thousand years in a starship at a tenth of light speed.
Properties
- absmag
- -0.324
- bv
- 1.758
- constellation
- Pup
- dist ly
- 2912.107
- luminosity
- 117.3816
- mag
- 9.43
- name
- HIP 40816
How to see it
Look for HIP 40816 in the constellation Pup. At apparent magnitude 9.43, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 40816 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 40816 is a common star
HIP 40816 scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Distant (over 1,000 light-years) and Deep red 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.