17165+3448 POP  77CD

 
 
17h 16m 29.24s +34 50' 02.8" P.A. 81 sep 10.2 mag 11.43,13.70
 
 
Coord 2000
17165+3448
Discov num
POP  77
Comp
CD
Coord arcsec 2000
17 16 29.24 +34 50 02.8
Date first
1986
Date last
2014
Obs
8
Pa first
81
Pa last
81
P.A. Now (θ)
81°
Sep first
10.6
Sep last
10.2
Sep. Now (ρ)
10.2"
Mag pri
11.43
Mag sec
13.70
delta mag (ΔM)
2.27
Spectral class
Pri motion ra
-012
Sec motion ra
Pri motion dec
-004
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
80.7
Precise sep
10.21
Constellation
Hercules
Tycho2
2600-01370-1
last precise pa
80.7
last precise sep
10.21
 
 
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 CD 1998 5 82 10.2 11.43 13.70 D 171629.24+345002.8
17165+3448 POP 77 CD 2002 6 81 10.2 11.43 13.70 D 171629.24+345002.8
17165+3448 POP 77 CD 2012 7 81 10.3 11.43 13.70 171629.24+345002.8
17165+3448 POP 77 CD 2014 8 81 10.2 11.43 13.70 171629.24+345002.8

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