17311+3533 POP  20

 
 
17h 31m 16.76s +34 58' 42.3" P.A. 7 sep 10.4 mag 13.70,14.60
 
 
Coord 2000
17311+3533
Discov num
POP  20
Comp
Coord arcsec 2000
17 31 16.76 +34 58 42.3
Date first
1968
Date last
2010
Obs
5
Pa first
10
Pa last
7
P.A. Now (θ)
Sep first
9.4
Sep last
10.4
Sep. Now (ρ)
10.4"
Mag pri
13.70
Mag sec
14.60
delta mag (ΔM)
0.9
Spectral class
Pri motion ra
-002
Sec motion ra
Pri motion dec
+017
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
6.8
Precise sep
10.36
Constellation
Hercules
last precise pa
6.8
last precise sep
10.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17311+3533 POP 20 1988 2 9 9.4 13.40 14.50 173160.00+353300.0
17311+3533 POP 20 2002 4 7 10.4 13.70 14.60 173116.76+345842.3
17311+3533 POP 20 2010 5 7 9.9 13.70 14.60 173116.76+345842.3
17311+3533 POP 20 2014 3 25 8.5 11.10 12.20 173138.96+353316.5

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