20219+2356 BKO 440

 
 
20h 21m 56.29s +23 56' 18.7" P.A. 217 sep 4.4 mag 14.00,14.50
 
 
Coord 2000
20219+2356
Discov num
BKO 440
Comp
Coord arcsec 2000
20 21 56.29 +23 56 18.7
Date first
1998
Date last
2015
Obs
4
Pa first
217
Pa last
217
P.A. Now (θ)
217°
Sep first
4.4
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
14.00
Mag sec
14.50
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
+025
Sec motion ra
Pri motion dec
+015
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
216.6
Precise sep
4.372
Constellation
Vulpecula
Gaia DR2
61412201088
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20219+2356 BKO 440 2008 1 218 4.6 14.00 14.50 202156.29+235618.7
20219+2356 BKO 440 2015 4 217 4.4 14.00 14.50 202156.29+235618.7

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