20016+3435 COU1947

 
 
20h 01m 33.86s +34 34' 59.1" P.A. 88 sep 0.3 mag 8.86,10.05 Sp B8V dist. 289.86 pc (945.52 l.y.)
 
 
Coord 2000
20016+3435
Discov num
COU1947
Comp
Coord arcsec 2000
20 01 33.86 +34 34 59.1
Date first
1981
Date last
2009
Obs
5
Pa first
94
Pa last
88
P.A. Now (θ)
88°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
8.86
Mag sec
10.05
delta mag (ΔM)
1.19
Spectral class
B8V (blue-white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
+006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
88.4
Precise sep
0.27
Constellation
Cygnus
SAO
69276
HIP
98593
Tycho2
2678-01481-1
HD
189983
BD
BD+34 3840
Distance
289.86
Distance ly
945.52
last precise pa
88.4
last precise sep
0.27
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20016+3435 COU1947 1996 3 91 0.3 8.86 10.05 B8V 200133.86+343459.1
20016+3435 COU1947 2007 4 92 0.3 8.86 10.05 B8V 200133.86+343459.1
20016+3435 COU1947 2009 5 88 0.3 8.86 10.05 B8V 200133.86+343459.1

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