17344+4913 HU  923

 
 
17h 34m 22.97s +49 12' 51.4" P.A. 105 sep 0.9 mag 9.49,9.90 Sp G0
 
 
Coord 2000
17344+4913
Discov num
HU  923
Comp
Coord arcsec 2000
17 34 22.97 +49 12 51.4
Date first
1904
Date last
2015
Obs
22
Pa first
100
Pa last
105
P.A. Now (θ)
105°
Sep first
1.0
Sep last
0.9
Sep. Now (ρ)
0.9"
Mag pri
9.49
Mag sec
9.90
delta mag (ΔM)
0.41
Spectral class
G0 (yellow)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
+044
Sec motion dec
+044
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
105.2
Precise sep
0.93
Constellation
Hercules
SAO
46807
Tycho2
3517-01102-1
last precise pa
105.2
last precise sep
0.93
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17344+4913 HU 923 2005 19 106 1.0 9.49 9.90 G0 173422.97+491251.4
17344+4913 HU 923 2010 20 105 1.0 9.49 9.90 G0 173422.97+491251.4
17344+4913 HU 923 2011 21 105 1.0 9.49 9.90 G0 173422.97+491251.4
17344+4913 HU 923 2015 22 105 0.9 9.49 9.90 G0 173422.97+491251.4

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