20381+5637 A   745

 
 
20h 38m 07.14s +56 36' 40.4" P.A. 317.00 sep 2.3 mag 9.20,12.19 Sp A2
 
 
Coord 2000
20381+5637
Discov num
A   745
Comp
Coord arcsec 2000
20 38 07.14 +56 36 40.4
Date first
1904
Date last
1991
Obs
7
Pa first
320
Pa last
317
P.A. Now (θ)
317°
Sep first
2.0
Sep last
2.3
Sep. Now (ρ)
2.3"
Mag pri
9.20
Mag sec
12.19
delta mag (ΔM)
2.99
Spectral class
A2 (white)
Pri motion ra
+022
Sec motion ra
+022
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
317
Precise sep
2.26
Constellation
Cygnus
SAO
32753
Tycho2
3958-01527-1
Gaia DR2
50729147392
HD
239465
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20381+5637 A 745 1991 7 317 2.3 9.20 12.19 A2 203807.14+563640.4

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