20131+4911 ES  502

 
 
20h 13m 07.26s +49 11' 18.7" P.A. 221 sep 13.7 mag 8.01,10.89 Sp B9.5V
 
 
Coord 2000
20131+4911
Discov num
ES  502
Comp
Coord arcsec 2000
20 13 07.26 +49 11 18.7
Date first
1907
Date last
2010
Obs
9
Pa first
223
Pa last
221
P.A. Now (θ)
221°
Sep first
11.3
Sep last
13.7
Sep. Now (ρ)
13.7"
Mag pri
8.01
Mag sec
10.89
delta mag (ΔM)
2.88
Spectral class
B9.5V (blue-white)
Pri motion ra
+007
Sec motion ra
-008
Pri motion dec
+010
Sec motion dec
-019
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
Tycho2
3567-00881-1
HD
192494
last precise pa
221.2
last precise sep
13.66
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20131+4911 ES 502 2000 7 221 13.4 8.01 10.89 B9.5V D 201307.26+491118.7
20131+4911 ES 502 2003 8 221 13.5 8.01 10.89 B9.5V D 201307.26+491118.7
20131+4911 ES 502 2010 9 221 13.5 8.01 10.89 B9.5V 201307.26+491118.7

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