20177+3914 COU2536

 
 
20h 17m 40.31s +39 14' 35.1" P.A. 312 sep 1.8 mag 9.74,11.49 Sp A0
 
 
Coord 2000
20177+3914
Discov num
COU2536
Comp
Coord arcsec 2000
20 17 40.31 +39 14 35.1
Date first
1989
Date last
2008
Obs
3
Pa first
316
Pa last
312
P.A. Now (θ)
312°
Sep first
1.4
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
9.74
Mag sec
11.49
delta mag (ΔM)
1.75
Spectral class
A0 (white)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-012
Sec motion dec
-012
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
312.2
Precise sep
1.771
Constellation
Cygnus
Tycho2
3151-00289-1
Gaia DR2
82331811328
HD
228777
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20177+3914 COU2536 1991 2 317 2.0 9.74 11.49 201740.31+391435.1
20177+3914 COU2536 2008 3 312 1.8 9.74 11.49 201740.31+391435.1

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