17564+2846 GRV 971

 
 
17h 56m 24.56s +28 46' 09.6" P.A. 237 sep 73.1 mag 11.48,12.52
 
 
Coord 2000
17564+2846
Discov num
GRV 971
Comp
Coord arcsec 2000
17 56 24.56 +28 46 09.6
Date first
1901
Date last
2010
Obs
6
Pa first
238
Pa last
237
P.A. Now (θ)
237°
Sep first
72.6
Sep last
73.1
Sep. Now (ρ)
73.1"
Mag pri
11.48
Mag sec
12.52
delta mag (ΔM)
1.04
Spectral class
Pri motion ra
-018
Sec motion ra
-022
Pri motion dec
+029
Sec motion dec
+029
Notes
rPM=0.11 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
236.7
Precise sep
73.09
Constellation
Hercules
Tycho2
2102-01242-1
last precise pa
236.7
last precise sep
73.047
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17564+2846 GRV 971 2000 5 237 73.0 11.48 12.52 D 175624.56+284609.6
17564+2846 GRV 971 2002 6 237 73.0 11.48 12.52 D 175624.56+284609.6
17564+2846 GRV 971 2010 6 237 73.1 11.48 12.52 175624.56+284609.6

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