About HIP 31781
HIP 31781 is a trash star. It lies about 1,553.1 light-years from Earth, sits in the constellation Pup and shines at apparent magnitude 8.45.
Side by side with the Sun it would be about 80.8 times brighter.
Trash star 9 EP
HIP 31781
RA 99.6799° · Dec -45.0601° · star
Score breakdown
· 2 badgesTrash 15 pts → Common
- Distant (over 1,000 light-years) +6
- Star +3
Total score 9
6 more points to reach Common.
Badges
- Star · +3
- Distant (over 1,000 light-years) · +6
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 8.4 it is just past naked-eye reach — ordinary binoculars will pull it in, 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 December — 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. ≈ 27.3 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 2.4 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 15.5 thousand years in a starship at a tenth of light speed.
Properties
- absmag
- 0.061
- constellation
- Pup
- dist ly
- 1553.1239
- luminosity
- 82.3379
- mag
- 8.45
- name
- HIP 31781
How to see it
Look for HIP 31781 in the constellation Pup. At apparent magnitude 8.45, it is an easy target for binoculars.
Like any astronomical target, HIP 31781 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 31781 is a trash star
HIP 31781 scores 9 points on Spacedle's rarity scale, which places it in the trash tier. Another 6 points would lift it into a rarer tier.
That score comes from 2 science badges — Star and Distant (over 1,000 light-years) — 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.