About Arcalís
Arcalís is a trash star. It lies about 358.8 light-years from Earth, sits in the constellation Boo, shines at apparent magnitude 7.8 and has spectral type K0.
Notable enough to have earned a proper name, not just a catalogue number.
Trash star 11 EP
Arcalís
RA 223.3460° · Dec 18.2354° · star
Score breakdown
· 2 badgesTrash 15 pts → Common
- Has a proper name +8
- Star +3
Total score 11
4 more points to reach Common.
Badges
- Star · +3
- Has a proper name · +8
Trivia
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 6.3 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 560.2 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 3588 years in a starship at a tenth of light speed.
- Distance. 359 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1667.
Saying hello
- Say hello. A radio message and its reply would take 718 years round-trip.
How we found it
- Named. Notable enough to have earned a proper name, not just a catalogue number.
Properties
- absmag
- 2.593
- bv
- 1.039
- constellation
- Boo
- dist ly
- 358.8075
- mag
- 7.8
- name
- Arcalís
- named
- yes
- spect
- K0
How to see it
Look for Arcalís in the constellation Boo. At apparent magnitude 7.8, it is an easy target for binoculars.
Like any astronomical target, Arcalís 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 Arcalís is a trash star
Arcalís scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.
That score comes from 2 science badges — Star and Has a proper name — 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.