17312+4903 COU1778

 
 
17h 31m 08.13s +49 03' 35.2" P.A. 189 sep 0.4 mag 10.83,10.82
 
 
Coord 2000
17312+4903
Discov num
COU1778
Comp
Coord arcsec 2000
17 31 08.13 +49 03 35.2
Date first
1979
Date last
2010
Obs
4
Pa first
174
Pa last
189
P.A. Now (θ)
189°
Sep first
0.4
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
10.83
Mag sec
10.82
delta mag (ΔM)
0.01
Spectral class
Pri motion ra
+018
Sec motion ra
+018
Pri motion dec
+004
Sec motion dec
+004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
188.8
Precise sep
0.372
Constellation
Hercules
Tycho2
3517-00634-1
last precise pa
188.8
last precise sep
0.372
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17312+4903 COU1778 1991 2 199 0.4 10.83 10.82 173108.13+490335.2
17312+4903 COU1778 2010 3 189 0.4 10.83 10.82 173108.13+490335.2

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