20549+3933 BKO 471
20h 54m 54.50s +39° 32' 32.6" P.A. 171.00 sep 5.5 mag 12.00,12.60
Coord 2000 |
20549+3933 |
|
Discov num |
BKO 471 |
|
Comp |
|
|
Coord arcsec 2000 |
20 54 54.50 +39 32 32.6 |
|
Date first |
1998 |
|
Date last |
2015 |
|
Obs |
9 |
|
Pa first |
171 |
|
Pa last |
171.1 |
|
P.A. Now (θ) |
171.1° |
|
Sep first |
5.5 |
|
Sep last |
5.537 |
|
Sep. Now (ρ) |
5.537" |
|
Mag pri |
12.00 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
|
|
Pri motion ra |
-010 |
|
Sec motion ra |
-006 |
|
Pri motion dec |
-019 |
|
Sec motion dec |
-040 |
|
Notes |
|
|
rPM=0.529
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3171-00244-1 |
|
Gaia DR2 |
1872854333771667584 |
|