17555+2250 GRV 970

 
 
17h 55m 35.57s +22 50' 14.1" P.A. 154 sep 44.4 mag 9.78,11.34 Sp G0
 
 
Coord 2000
17555+2250
Discov num
GRV 970
Comp
Coord arcsec 2000
17 55 35.57 +22 50 14.1
Date first
1894
Date last
2016
Obs
10
Pa first
154
Pa last
154
P.A. Now (θ)
154°
Sep first
44.1
Sep last
44.4
Sep. Now (ρ)
44.4"
Mag pri
9.78
Mag sec
11.34
delta mag (ΔM)
1.56
Spectral class
G0 (yellow)
Pri motion ra
-056
Sec motion ra
-054
Pri motion dec
-021
Sec motion dec
-022
Notes
N (See Notes)
rPM=0.037 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
153.7
Precise sep
44.379
Constellation
Hercules
Tycho2
2090-01645-1
last precise pa
153.7
last precise sep
44.379
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17555+2250 GRV 970 2000 7 154 44.2 9.78 11.34 D 175535.57+225014.1
17555+2250 GRV 970 2005 8 154 44.2 9.78 11.34 N D 175535.57+225014.1
17555+2250 GRV 970 2010 9 154 44.2 9.78 11.34 G0 N 175535.57+225014.1
17555+2250 GRV 970 2016 10 154 44.4 9.78 11.34 G0 N 175535.57+225014.1

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