18113+1713 HU  317

 
 
18h 11m 20.44s +17 13' 17.8" P.A. 205 sep 1.5 mag 9.63,9.69 Sp G0
 
 
Coord 2000
18113+1713
Discov num
HU  317
Comp
Coord arcsec 2000
18 11 20.44 +17 13 17.8
Date first
1901
Date last
2015
Obs
50
Pa first
201
Pa last
205
P.A. Now (θ)
205°
Sep first
1.9
Sep last
1.5
Sep. Now (ρ)
1.5"
Mag pri
9.63
Mag sec
9.69
delta mag (ΔM)
0.06
Spectral class
G0 (yellow)
Pri motion ra
+006
Sec motion ra
+006
Pri motion dec
+011
Sec motion dec
+011
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
205.3
Precise sep
1.47
Constellation
Hercules
Tycho2
1571-01190-1
last precise pa
205.3
last precise sep
1.47
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18113+1713 HU 317 2005 48 203 1.5 9.63 9.69 G0 181120.44+171317.8
18113+1713 HU 317 2010 49 205 1.5 9.63 9.69 G0 181120.44+171317.8
18113+1713 HU 317 2011 49 203 1.5 9.63 9.69 G0 181120.44+171317.8
18113+1713 HU 317 2012 49 205 1.5 9.63 9.69 G0 181120.44+171317.8
18113+1713 HU 317 2015 50 205 1.5 9.63 9.69 G0 181120.44+171317.8

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