20355+3509 POP   7

 
 
20h 35m 29.40s +35 09' 27.4" P.A. 66 sep 7.9 mag 10.20,14.40
 
 
Coord 2000
20355+3509
Discov num
POP   7
Comp
Coord arcsec 2000
20 35 29.40 +35 09 27.4
Date first
1968
Date last
2015
Obs
9
Pa first
68
Pa last
66
P.A. Now (θ)
66°
Sep first
7.0
Sep last
7.9
Sep. Now (ρ)
7.9"
Mag pri
10.20
Mag sec
14.40
delta mag (ΔM)
4.2
Spectral class
Pri motion ra
+005
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
65.6
Precise sep
7.904
Constellation
Cygnus
SAO
70241
Tycho2
2694-00756-1
Gaia DR2
43861317504
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20355+3509 POP 7 1999 2 67 7.9 10.20 14.40 D 203529.40+350927.4
20355+3509 POP 7 2002 3 67 7.9 10.20 14.40 D 203529.40+350927.4
20355+3509 POP 7 2010 4 65 8.0 10.20 14.40 203529.40+350927.4
20355+3509 POP 7 2015 5 65 7.9 10.20 14.40 203529.40+350927.4

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