21569+3735 BKO 905 AD
21h 56m 53.14s +37° 35' 21.9" P.A. 33.00 sep 17.8 mag 11.85,13.87
| Coord 2000 |
21569+3735 |
|
Discov num |
BKO 905 |
|
Comp |
AD |
|
Coord arcsec 2000 |
21 56 53.14 +37 35 21.9 |
|
| Date first |
2000 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
34 |
|
Pa last |
33.3 |
|
P.A. Now (θ) |
33.3° |
|
| Sep first |
17.8 |
|
Sep last |
17.76 |
|
Sep. Now (ρ) |
17.76" |
|
| Mag pri |
11.85 |
|
Mag sec |
13.87 |
|
delta mag (ΔM) |
2.02 |
|
Spectral class |
|
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-006 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
rPM=0.236 (< 0.3, Physical double)
This double is physical.
21569+3735 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 56 53 +37 35 22 |
BKO 905 AB |
2015 |
9 |
316 |
6.3 |
11.85 |
13.45 |
1.60 |
|
|
| Show |
|
|
21 56 53 +37 35 22 |
BKO 905 AC |
2015 |
9 |
36 |
6.8 |
11.85 |
15.20 |
3.35 |
|
|
| Show |
|
|
21 56 53 +37 35 22 |
BKO 905 AD |
2015 |
9 |
33 |
17.8 |
11.85 |
13.87 |
2.02 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1949933607863851904 |
|
