18398+0709 SLE1031AB

 
 
18h 39m 48.46s +07 09' 14.9" P.A. 298 sep 12.4 mag 11.40,11.56
 
 
Coord 2000
18398+0709
Discov num
SLE1031
Comp
AB
Coord arcsec 2000
18 39 48.46 +07 09 14.9
Date first
1918
Date last
2012
Obs
7
Pa first
285
Pa last
298
P.A. Now (θ)
298°
Sep first
13.5
Sep last
12.4
Sep. Now (ρ)
12.4"
Mag pri
11.40
Mag sec
11.56
delta mag (ΔM)
0.16
Spectral class
Pri motion ra
-012
Sec motion ra
+007
Pri motion dec
-018
Sec motion dec
+001
Notes
rPM=1.242
This double is not physical.
 
 
18398+0709 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18398+0709 SLE1031 AB 1918 2012 7 298 12.4 11.40 11.56 0.16 <===
Show 18398+0709 BRT2178 CD 1909 1999 2 169 5.2 12.50 12.60 0.10
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
298.4
Precise sep
12.37
Constellation
Ophiuchus
Tycho2
0459-00485-1
last precise pa
298.4
last precise sep
12.37
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18398+0709 SLE1031 AB 2000 5 297 12.4 11.40 11.56 D 183948.46+070914.9
18398+0709 SLE1031 AB 2001 6 297 12.4 11.40 11.56 D 183948.46+070914.9
18398+0709 SLE1031 AB 2012 7 298 12.4 11.40 11.56 D 183948.46+070914.9

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