17551+3745 OSO  89AB

 
 
17h 55m 06.31s +37 44' 48.0" P.A. 114 sep 18 mag 11.99,17.70 Sp sd?F8:
 
 
Coord 2000
17551+3745
Discov num
OSO  89
Comp
AB
Coord arcsec 2000
17 55 06.31 +37 44 48.0
Date first
1995
Date last
1999
Obs
2
Pa first
120
Pa last
114
P.A. Now (θ)
114°
Sep first
17.9
Sep last
18.0
Sep. Now (ρ)
18"
Mag pri
11.99
Mag sec
17.70
delta mag (ΔM)
5.71
Spectral class
sd?F8:
Pri motion ra
-188
Sec motion ra
Pri motion dec
-384
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
17551+3745 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17551+3745 OSO 89 AB 1995 1999 2 114 18.0 11.99 17.70 5.71 <===
Show 17551+3745 OSO 89 AC 1995 1999 2 67 19.8 11.99 17.80 5.81
Show 17551+3745 OSO 89 AD 1995 1995 1 26 23.8 11.99 19.30 7.31
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
113.8
Precise sep
17.99
Constellation
Hercules
Tycho2
3089-02338-1
last precise pa
113.8
last precise sep
17.99
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17551+3745 OSO 89 AB 1999 2 114 18.0 11.99 17.70 N D 175506.31+374448.0

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