20059+3542 SEI 854

 
 
20h 05m 52.65s +35 42' 24.5" P.A. 108 sep 13 mag 9.70,11.90 Sp B1.5IV
 
 
Coord 2000
20059+3542
Discov num
SEI 854
Comp
Coord arcsec 2000
20 05 52.65 +35 42 24.5
Date first
1896
Date last
2016
Obs
11
Pa first
117
Pa last
108
P.A. Now (θ)
108°
Sep first
11.7
Sep last
13.0
Sep. Now (ρ)
13"
Mag pri
9.70
Mag sec
11.90
delta mag (ΔM)
2.2
Spectral class
B1.5IV (blue-white)
Pri motion ra
-004
Sec motion ra
+002
Pri motion dec
-007
Sec motion dec
-003
Notes
rPM=0.894
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
108.4
Precise sep
13.041
Constellation
Cygnus
SAO
69399
Gaia DR2
55233453824
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20059+3542 SEI 854 1998 4 109 12.9 9.70 11.90 D 200552.65+354224.5
20059+3542 SEI 854 2002 5 109 12.9 9.70 11.90 D 200552.65+354224.5
20059+3542 SEI 854 2010 6 110 13.8 9.70 11.90 B1.5IV 200552.65+354224.5
20059+3542 SEI 854 2016 6 108 13.0 9.70 11.90 B1.5IV 200552.65+354224.5

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