20249+3404 A   290

 
 
20h 24m 55.16s +34 03' 39.8" P.A. 312.00 sep 0.5 mag 9.13,8.68 Sp A2
 
 
Coord 2000
20249+3404
Discov num
A   290
Comp
Coord arcsec 2000
20 24 55.16 +34 03 39.8
Date first
1901
Date last
2016
Obs
15
Pa first
134
Pa last
312
P.A. Now (θ)
312°
Sep first
0.2
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
9.13
Mag sec
8.68
delta mag (ΔM)
0.45
Spectral class
A2 (white)
Pri motion ra
+011
Sec motion ra
+011
Pri motion dec
+000
Sec motion dec
+000
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
312.4
Precise sep
0.497
Constellation
Cygnus
SAO
69984
Tycho2
2693-01271-1
HD
194540
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20249+3404 A 290 1991 12 131 0.4 9.13 8.68 A2 202455.16+340339.8
20249+3404 A 290 2007 13 312 0.5 9.13 8.68 A2 202455.16+340339.8
20249+3404 A 290 2009 14 310 0.5 9.13 8.68 A2 202455.16+340339.8
20249+3404 A 290 2016 15 312 0.5 9.13 8.68 A2 202455.16+340339.8

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