17317+3604 ES 2230

 
 
17h 31m 44.37s +36 03' 44.2" P.A. 93 sep 9.6 mag 10.54,11.03
 
 
Coord 2000
17317+3604
Discov num
ES 2230
Comp
Coord arcsec 2000
17 31 44.37 +36 03 44.2
Date first
1926
Date last
2014
Obs
12
Pa first
90
Pa last
93
P.A. Now (θ)
93°
Sep first
8.6
Sep last
9.6
Sep. Now (ρ)
9.6"
Mag pri
10.54
Mag sec
11.03
delta mag (ΔM)
0.49
Spectral class
Pri motion ra
+024
Sec motion ra
+044
Pri motion dec
+039
Sec motion dec
+042
Notes
rPM=0.332
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
92.5
Precise sep
9.59
Constellation
Hercules
Tycho2
2617-00282-1
last precise pa
92.5
last precise sep
9.59
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17317+3604 ES 2230 1998 7 92 9.5 10.54 11.03 D 173144.37+360344.2
17317+3604 ES 2230 2008 8 92 9.6 10.54 11.03 D 173144.37+360344.2
17317+3604 ES 2230 2014 10 93 9.6 10.54 11.03 173144.37+360344.2

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