20203+2350 BKO 643

 
 
20h 20m 21.29s +23 50' 42.8" P.A. 147 sep 2.5 mag 13.50,14.00
 
 
Coord 2000
20203+2350
Discov num
BKO 643
Comp
Coord arcsec 2000
20 20 21.29 +23 50 42.8
Date first
2008
Date last
2015
Obs
2
Pa first
146
Pa last
147
P.A. Now (θ)
147°
Sep first
2.0
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
13.50
Mag sec
14.00
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
-045
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
147.2
Precise sep
2.492
Constellation
Vulpecula
Gaia DR2
94496087680
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20203+2350 BKO 643 2008 1 146 2.0 13.50 14.00 202021.51+235042.9
20203+2350 BKO 643 2015 2 147 2.5 13.50 14.00 202021.29+235042.8

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