17165+3448 POP  77AB

 
 
17h 16m 30.78s +34 49' 02.7" P.A. 322 sep 5.5 mag 10.91,13.60
 
 
Coord 2000
17165+3448
Discov num
POP  77
Comp
AB
Coord arcsec 2000
17 16 30.78 +34 49 02.7
Date first
1972
Date last
2014
Obs
15
Pa first
321
Pa last
322
P.A. Now (θ)
322°
Sep first
4.4
Sep last
5.5
Sep. Now (ρ)
5.5"
Mag pri
10.91
Mag sec
13.60
delta mag (ΔM)
2.69
Spectral class
Pri motion ra
-058
Sec motion ra
Pri motion dec
+018
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
17165+3448 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17165+3448 POP 77 AB 1972 2014 15 322 5.5 10.91 13.60 2.69 <===
Show 17165+3448 POP 77 AC 1934 2014 13 343 62.3 10.91 11.43 0.52
Show 17165+3448 POP 77 CD 1986 2014 8 81 10.2 11.43 13.70 2.27
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
322
Precise sep
5.49
Constellation
Hercules
Tycho2
2600-00911-1
last precise pa
322
last precise sep
5.49
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17165+3448 POP 77 AB 1998 12 322 5.4 10.91 13.60 D 171630.78+344902.7
17165+3448 POP 77 AB 2002 13 322 5.5 10.91 13.60 D 171630.78+344902.7
17165+3448 POP 77 AB 2012 14 322 5.5 10.91 13.60 171630.78+344902.7
17165+3448 POP 77 AB 2014 15 322 5.5 10.91 13.60 171630.78+344902.7

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