20177+3836 SEI1069

 
 
20h 17m 43.04s +38 36' 10.3" P.A. 247 sep 14.6 mag 9.02,12.10 Sp O8?+B2III
 
 
Coord 2000
20177+3836
Discov num
SEI1069
Comp
Coord arcsec 2000
20 17 43.04 +38 36 10.3
Date first
1896
Date last
2015
Obs
13
Pa first
245
Pa last
247
P.A. Now (θ)
247°
Sep first
14.7
Sep last
14.6
Sep. Now (ρ)
14.6"
Mag pri
9.02
Mag sec
12.10
delta mag (ΔM)
3.08
Spectral class
O8?+B2III (blue/blue-white)
Pri motion ra
-004
Sec motion ra
-006
Pri motion dec
-007
Sec motion dec
-006
Notes
rPM=0.264 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247.1
Precise sep
14.649
Constellation
Cygnus
SAO
69771
Tycho2
3151-00572-1
Gaia DR2
79830803584
HD
228791
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20177+3836 SEI1069 1998 6 247 14.7 9.02 12.10 D 201743.04+383610.3
20177+3836 SEI1069 2002 7 247 14.7 9.02 12.10 D 201743.04+383610.3
20177+3836 SEI1069 2010 8 245 13.9 9.02 12.10 O8?+B2III 201743.04+383610.3
20177+3836 SEI1069 2015 9 247 14.8 9.02 12.10 O8?+B2III 201743.04+383610.3

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