18407+1749 ROE  88AC

 
 
18h 40m 41.38s +17 49' 44.4" P.A. 330 sep 35.7 mag 12.60,13.50
 
 
Coord 2000
18407+1749
Discov num
ROE  88
Comp
AC
Coord arcsec 2000
18 40 41.38 +17 49 44.4
Date first
1915
Date last
2006
Obs
5
Pa first
330
Pa last
330
P.A. Now (θ)
330°
Sep first
40.1
Sep last
35.7
Sep. Now (ρ)
35.7"
Mag pri
12.60
Mag sec
13.50
delta mag (ΔM)
0.9
Spectral class
Pri motion ra
-006
Sec motion ra
-002
Pri motion dec
+009
Sec motion dec
+010
Notes
rPM=0.381
Nature of this double is uncertain.
 
 
18407+1749 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18407+1749 ROE 88 AB 1915 2013 5 132 8.4 12.60 12.60 0.00
Show 18407+1749 ROE 88 AC 1915 2006 5 330 35.7 12.60 13.50 0.90 <===
Show 18407+1749 WLY 11 AD 1998 2006 3 322 14.7 12.60 13.90 1.30
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
329.9
Precise sep
35.67
Constellation
Hercules
last precise pa
329.9
last precise sep
35.67
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18407+1749 ROE 88 AC 2006 4 330 35.7 12.10 13.00 D 184041.38+174944.4

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