Trash variable star 5 EP
21 Com
RA 187.7523° · Dec 24.5672° · star
Score breakdown
· 1 badgeTrash 15 pts → Common
- Variable star +5
Total score 5
10 more points to reach Common.
Badges
- Variable star · +5
Trivia
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 4.7 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 421.2 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 2698 years in a starship at a tenth of light speed.
- Distance. 270 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1756.
Saying hello
- Say hello. A radio message and its reply would take 540 years round-trip.
Properties
- absmag
- 0.882
- bv
- 0.056
- constellation
- Com
- dist ly
- 269.7734
- mag
- 5.47
- name
- 21 Com
- spect
- A2pvar