20518+1545 GWP3007

 
 
20h 51m 47.81s +15 45' 22.9" P.A. 162 sep 8.4 mag 12.60,16.00
 
 
Coord 2000
20518+1545
Discov num
GWP3007
Comp
Coord arcsec 2000
20 51 47.81 +15 45 22.9
Date first
1990
Date last
2001
Obs
3
Pa first
165
Pa last
162
P.A. Now (θ)
162°
Sep first
6.8
Sep last
8.4
Sep. Now (ρ)
8.4"
Mag pri
12.60
Mag sec
16.00
delta mag (ΔM)
3.4
Spectral class
Pri motion ra
-030
Sec motion ra
-030
Pri motion dec
-038
Sec motion dec
-050
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.206 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
162
Precise sep
8.36
Constellation
Delphinus
last precise pa
162
last precise sep
8.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20518+1545 GWP3007 1997 2 164 8.1 12.60 16.00 V R 205147.81+154522.9
20518+1545 GWP3007 2001 3 162 8.4 12.60 16.00 V R 205147.81+154522.9
20518+1545 GWP3007 2010 4 163 7.4 12.60 16.00 V R 205147.81+154522.9

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