Trash star 13 EP
HD 21990
RA 54.8683° · Dec 75.2949° · star
Score breakdown
· 2 badgesTrash 15 pts → Common
- Distant (>1000 ly) +10
- Star +3
Total score 13
2 more points to reach Common.
Badges
- Star · +3
- Distant (>1000 ly) · +10
Trivia
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 48.2 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 4.3 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 27.4 thousand years in a starship at a tenth of light speed.
- Distance. 2741 light-years from Earth.
Look-back time
- Look-back time. Its light left before the last ice age ended.
Saying hello
- Say hello. A radio message and its reply would take 5482 years round-trip.
Properties
- absmag
- -1.732
- bv
- 1.642
- constellation
- Cas
- dist ly
- 2740.8066
- mag
- 7.89
- name
- HD 21990
- spect
- K5