17197+3703 COU 994

 
 
17h 19m 44.04s +37 02' 37.3" P.A. 215 sep 0.5 mag 9.40,11.20 Sp A2
 
 
Coord 2000
17197+3703
Discov num
COU 994
Comp
Coord arcsec 2000
17 19 44.04 +37 02 37.3
Date first
1973
Date last
2008
Obs
3
Pa first
229
Pa last
215
P.A. Now (θ)
215°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
9.40
Mag sec
11.20
delta mag (ΔM)
1.8
Spectral class
A2 (white)
Pri motion ra
-011
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
215.2
Precise sep
0.464
Constellation
Hercules
SAO
65947
Tycho2
2604-00572-1
last precise pa
215.2
last precise sep
0.464
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17197+3703 COU 994 1989 2 228 0.4 9.40 11.20 A2 171944.04+370237.3
17197+3703 COU 994 2008 3 215 0.5 9.40 11.20 A2 171944.04+370237.3

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