20176+3643 SLE 988

 
 
20h 17m 38.41s +36 42' 34.0" P.A. 115 sep 10.8 mag 11.71,13.10
 
 
Coord 2000
20176+3643
Discov num
SLE 988
Comp
Coord arcsec 2000
20 17 38.41 +36 42 34.0
Date first
1985
Date last
2015
Obs
8
Pa first
113
Pa last
115
P.A. Now (θ)
115°
Sep first
10.9
Sep last
10.8
Sep. Now (ρ)
10.8"
Mag pri
11.71
Mag sec
13.10
delta mag (ΔM)
1.39
Spectral class
Pri motion ra
-002
Sec motion ra
+005
Pri motion dec
-003
Sec motion dec
-017
Notes
rPM=0.883
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
114.5
Precise sep
10.836
Constellation
Cygnus
Tycho2
2684-01893-1
Gaia DR2
75909596288
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20176+3643 SLE 988 1985 1 113 10.9 11.40 12.70 201738.16+364317.0
20176+3643 SLE 988 1998 2 114 10.8 11.71 13.10 201738.41+364234.0
20176+3643 SLE 988 2002 3 114 10.9 11.71 13.10 201738.41+364234.0
20176+3643 SLE 988 2015 4 115 10.9 11.71 13.10 201738.41+364234.0

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