18109+4242 ROE   5AB

 
 
18H 09M 51.11S +42 42' 51.0" P.A. 114 SEP 15 MAG 11.41,13.19
 
 
Coord 2000
18109+4242
Discov num
ROE   5
Comp
AB
Coord arcsec 2000
18 09 51.11 +42 42 51.0
Date first
1909
Date last
2008
Obs
5
Pa first
108
Pa last
114
P.A. Now (θ)
114°
Sep first
12.7
Sep last
15.0
Sep. Now (ρ)
15"
Mag pri
11.41
Mag sec
13.19
delta mag (ΔM)
1.78
Spectral class
Pri motion ra
-003
Sec motion ra
-013
Pri motion dec
-007
Sec motion dec
-018
Notes
Nature of this double is uncertain.
 
 
18109+4242 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18109+4242 ROE 5 AB 1909 2008 5 114 15.0 11.41 13.19 1.78 <===
Show 18109+4242 ROE 5 AC 1893 2003 6 32 192.4 11.41 11.45 0.04
Show 18109+4242 ROE 6 CD 1893 2013 7 228 11.4 11.45 11.15 0.30
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
Tycho2
3110-00262-1
last precise pa
114.3
last precise sep
14.96