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
Tycho2
1652-00008-1
Gaia DR2
39757774208
HD
353286
 
 
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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