17555+4108 ES 1557AB

 
 
17H 55M 31.53S +41 07' 48.5" P.A. 11 SEP 11.6 MAG 9.08,12.40 SP F3V
 
 
Coord 2000
17555+4108
Discov num
ES 1557
Comp
AB
Coord arcsec 2000
17 55 31.53 +41 07 48.5
Date first
1893
Date last
2015
Obs
8
Pa first
2
Pa last
11
P.A. Now (θ)
11°
Sep first
9.2
Sep last
11.6
Sep. Now (ρ)
11.6"
Mag pri
9.08
Mag sec
12.40
delta mag (ΔM)
3.32
Spectral class
F3V (yellow-white)
Pri motion ra
-017
Sec motion ra
+006
Pri motion dec
-016
Sec motion dec
+006
Notes
L (Linear solution)
Nature of this double is uncertain.
 
 
17555+4108 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47069 17555+4108 COU1601 Aa,Ab 1977 2015 14 64 0.6 9.69 9.91 0.22
Show 47069 17555+4108 ES 1557 AB 1893 2015 8 11 11.6 9.08 12.40 3.32 <===
Show 47069 17555+4108 ES 1557 AC 1916 2015 6 216 27.0 9.08 12.29 3.21
Show 47069 17555+4108 ES 1557 AD 1988 2015 4 312 40.1 9.08 13.35 4.27
Show 47069 17555+4108 ABH 92 AE 1988 2003 3 324 71.1 9.08 14.83 5.75
Sextuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
47069
Tycho2
3093-00705-1
last precise pa
11.3
last precise sep
11.6