20570+1758 COU 427

 
 
20h 56m 59.19s +17 57' 30.3" P.A. 220 sep 1.5 mag 10.42,12.60 Sp G5
 
 
Coord 2000
20570+1758
Discov num
COU 427
Comp
Coord arcsec 2000
20 56 59.19 +17 57 30.3
Date first
1969
Date last
2003
Obs
3
Pa first
217
Pa last
220
P.A. Now (θ)
220°
Sep first
1.5
Sep last
1.5
Sep. Now (ρ)
1.5"
Mag pri
10.42
Mag sec
12.60
delta mag (ΔM)
2.18
Spectral class
G5 (yellow)
Pri motion ra
-034
Sec motion ra
Pri motion dec
-056
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
219.7
Precise sep
1.48
Constellation
Delphinus
last precise pa
219.7
last precise sep
1.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20570+1758 COU 427 2003 2 220 1.5 10.42 12.60 G5 205659.19+175730.3

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