17179+4918 STF2153

 
 
17h 17m 53.03s +49 18' 18.5" P.A. 245 sep 1.5 mag 9.36,9.70 Sp K0
 
 
Coord 2000
17179+4918
Discov num
STF2153
Comp
Coord arcsec 2000
17 17 53.03 +49 18 18.5
Date first
1831
Date last
2014
Obs
84
Pa first
282
Pa last
245
P.A. Now (θ)
245°
Sep first
1.9
Sep last
1.5
Sep. Now (ρ)
1.5"
Mag pri
9.36
Mag sec
9.70
delta mag (ΔM)
0.34
Spectral class
K0 (yellow-orange)
Pri motion ra
-169
Sec motion ra
-169
Pri motion dec
-029
Sec motion dec
-029
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
244.5
Precise sep
1.468
Constellation
Hercules
SAO
46619
Tycho2
3516-00944-1
HD
156963
last precise pa
244.5
last precise sep
1.468
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17179+4918 STF2153 2005 79 247 1.5 9.36 9.70 K0 171753.03+491818.5
17179+4918 STF2153 2009 83 246 1.5 9.36 9.70 K0 171753.03+491818.5
17179+4918 STF2153 2010 84 245 1.5 9.36 9.70 K0 171753.03+491818.5
17179+4918 STF2153 2014 83 245 1.5 9.36 9.70 K0 171753.03+491818.5

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