18173+2825 GRV 232

 
 
18h 17m 23.84s +28 25' 47.0" P.A. 170 sep 16.8 mag 10.43,11.43
 
 
Coord 2000
18173+2825
Discov num
GRV 232
Comp
Coord arcsec 2000
18 17 23.84 +28 25 47.0
Date first
1895
Date last
2011
Obs
8
Pa first
171
Pa last
170
P.A. Now (θ)
170°
Sep first
16.9
Sep last
16.8
Sep. Now (ρ)
16.8"
Mag pri
10.43
Mag sec
11.43
delta mag (ΔM)
1
Spectral class
Pri motion ra
-014
Sec motion ra
-011
Pri motion dec
+053
Sec motion dec
+053
Notes
rPM=0.055 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
169.8
Precise sep
16.75
Constellation
Hercules
Tycho2
2105-01346-1
last precise pa
169.8
last precise sep
16.75
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18173+2825 GRV 232 2000 6 170 16.7 10.43 11.43 D 181723.84+282547.0
18173+2825 GRV 232 2011 7 170 16.8 10.43 11.43 D 181723.84+282547.0

If you need more information about this double, apply for a data request form to the WDS.