20089+3531 SEI 917

 
 
20h 08m 53.54s +35 30' 46.4" P.A. 338 sep 28.4 mag 8.42,12.62 Sp B0V
 
 
Coord 2000
20089+3531
Discov num
SEI 917
Comp
Coord arcsec 2000
20 08 53.54 +35 30 46.4
Date first
1896
Date last
2015
Obs
9
Pa first
339
Pa last
338
P.A. Now (θ)
338°
Sep first
28.0
Sep last
28.4
Sep. Now (ρ)
28.4"
Mag pri
8.42
Mag sec
12.62
delta mag (ΔM)
4.2
Spectral class
B0V (blue-white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-007
Sec motion dec
-006
Notes
rPM=0.131 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
337.8
Precise sep
28.389
Constellation
Cygnus
SAO
69501
Tycho2
2679-00893-1
Gaia DR2
29092327040
HD
191495
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20089+3531 SEI 917 1998 3 338 28.4 8.42 11.60 B0V D 200853.54+353046.4
20089+3531 SEI 917 2002 4 338 28.5 8.42 11.60 B0V D 200853.54+353046.4
20089+3531 SEI 917 2010 5 338 28.4 8.42 12.62 B0V 200853.54+353046.4
20089+3531 SEI 917 2015 5 338 28.4 8.42 12.62 B0V 200853.54+353046.4

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