20121+3330 BKO 898

 
 
20h 12m 07.78s +33 30' 06.6" P.A. 65 sep 4.7 mag 10.82,13.10
 
 
Coord 2000
20121+3330
Discov num
BKO 898
Comp
Coord arcsec 2000
20 12 07.78 +33 30 06.6
Date first
1998
Date last
2015
Obs
4
Pa first
65
Pa last
65
P.A. Now (θ)
65°
Sep first
4.5
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
10.82
Mag sec
13.10
delta mag (ΔM)
2.28
Spectral class
Pri motion ra
-034
Sec motion ra
+121
Pri motion dec
-017
Sec motion dec
+050
Notes
rPM=1.29
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
65.2
Precise sep
4.725
Constellation
Cygnus
Tycho2
2675-01058-1
Gaia DR2
13445270784
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20121+3330 BKO 898 2009 3 69 4.7 10.82 13.10 201207.78+333006.6
20121+3330 BKO 898 2015 4 65 4.7 10.82 13.10 201207.78+333006.6

If you need more information about this double, apply for a data request form to the WDS.