17551+3134 ITF  16AC

 
 
17h 55m 07.18s +31 33' 36.8" P.A. 107 sep 11.1 mag 10.31,15.60 Sp K1V+K7V
 
 
Coord 2000
17551+3134
Discov num
ITF  16
Comp
AC
Coord arcsec 2000
17 55 07.18 +31 33 36.8
Date first
1952
Date last
2002
Obs
3
Pa first
102
Pa last
107
P.A. Now (θ)
107°
Sep first
10.7
Sep last
11.1
Sep. Now (ρ)
11.1"
Mag pri
10.31
Mag sec
15.60
delta mag (ΔM)
5.29
Spectral class
K1V+K7V (yellow-orange/yellow-orange)
Pri motion ra
-076
Sec motion ra
-041
Pri motion dec
-103
Sec motion dec
-124
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.313
This double is physical.
 
 
17551+3134 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 66463 17551+3134 AG 215 AB 1899 2013 10 49 42.8 10.31 11.57 1.26
Show 66463 17551+3134 ITF 16 AC 1952 2002 3 107 11.1 10.31 15.60 5.29 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
107.3
Precise sep
11.129
Constellation
Hercules
SAO
66463
Tycho2
2608-00620-1
last precise pa
107.3
last precise sep
11.129
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17551+3134 ITF 16 AC 1998 2 108 11.4 10.31 15.60 K1V+K7V V 175507.18+313336.8
17551+3134 ITF 16 AC 2002 3 107 11.1 10.31 15.60 K1V+K7V NV 175507.18+313336.8

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