17135+2918 COU 494

 
 
17h 13m 30.55s +29 17' 46.4" P.A. 355 sep 1.6 mag 10.00,11.34 Sp K2
 
 
Coord 2000
17135+2918
Discov num
COU 494
Comp
Coord arcsec 2000
17 13 30.55 +29 17 46.4
Date first
1970
Date last
2014
Obs
9
Pa first
353
Pa last
355
P.A. Now (θ)
355°
Sep first
1.4
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
10.00
Mag sec
11.34
delta mag (ΔM)
1.34
Spectral class
K2 (yellow-orange)
Pri motion ra
-006
Sec motion ra
-006
Pri motion dec
+004
Sec motion dec
+004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
354.9
Precise sep
1.56
Constellation
Hercules
SAO
84936
Tycho2
2073-00388-1
last precise pa
354.9
last precise sep
1.56
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17135+2918 COU 494 2005 5 354 1.6 10.00 11.34 K2 171330.55+291746.4
17135+2918 COU 494 2008 7 352 1.6 10.00 11.34 K2 171330.55+291746.4
17135+2918 COU 494 2014 9 355 1.6 10.00 11.34 K2 171330.55+291746.4

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