21223+3139 ES 377 BC
21h 22m 18.05s +31° 39' 01.2" P.A. 211.00 sep 2.2 mag 11.82,11.98
| Coord 2000 |
21223+3139 |
|
Discov num |
ES 377 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 22 18.05 +31 39 01.2 |
|
| Date first |
1906 |
|
Date last |
2020 |
|
Obs |
6 |
|
| Pa first |
210 |
|
Pa last |
210.6 |
|
P.A. Now (θ) |
210.6° |
|
| Sep first |
2.5 |
|
Sep last |
2.17 |
|
Sep. Now (ρ) |
2.17" |
|
| Mag pri |
11.82 |
|
Mag sec |
11.98 |
|
delta mag (ΔM) |
0.16 |
|
Spectral class |
|
|
| Pri motion ra |
-001 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
Nature of this double is uncertain.
21223+3139 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 22 22 +31 38 44 |
ES 377 AB |
2015 |
11 |
291 |
48.7 |
11.05 |
11.82 |
0.77 |
|
|
| Show |
|
|
21 22 18 +31 39 01 |
ES 377 BC |
2020 |
6 |
211 |
2.2 |
11.82 |
11.98 |
0.16 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2703-00648-1 |
|
Gaia DR2 |
1853661469250362240 |
|
