20203+3922 SEI1091

 
 
20h 20m 17.93s +39 22' 29.2" P.A. 180 sep 27.2 mag 8.92,11.39 Sp A5
 
 
Coord 2000
20203+3922
Discov num
SEI1091
Comp
Coord arcsec 2000
20 20 17.93 +39 22 29.2
Date first
1892
Date last
2015
Obs
16
Pa first
181
Pa last
180
P.A. Now (θ)
180°
Sep first
29.5
Sep last
27.2
Sep. Now (ρ)
27.2"
Mag pri
8.92
Mag sec
11.39
delta mag (ΔM)
2.47
Spectral class
A5 (white)
Pri motion ra
-007
Sec motion ra
-004
Pri motion dec
-027
Sec motion dec
-006
Notes
rPM=0.761
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
180.3
Precise sep
27.18
Constellation
Cygnus
SAO
69856
Tycho2
3152-01545-1
Gaia DR2
90161118464
HD
193702
HR
7784
DM
BD+38 4021
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20203+3922 SEI1091 1998 8 180 27.4 8.92 11.10 A5 D 202017.93+392229.2
20203+3922 SEI1091 2008 9 181 27.4 8.92 11.10 A5 D 202017.93+392229.2
20203+3922 SEI1091 2010 11 181 27.1 8.92 11.39 A5 202017.93+392229.2
20203+3922 SEI1091 2015 12 180 27.2 8.92 11.39 A5 202017.93+392229.2

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