18397+4035 AG  225AB

 
 
18h 39m 45.59s +40 34' 40.0" P.A. 355 sep 6.4 mag 10.28,10.36
 
 
Coord 2000
18397+4035
Discov num
AG  225
Comp
AB
Coord arcsec 2000
18 39 45.59 +40 34 40.0
Date first
1892
Date last
2012
Obs
18
Pa first
354
Pa last
355
P.A. Now (θ)
355°
Sep first
6.5
Sep last
6.4
Sep. Now (ρ)
6.4"
Mag pri
10.28
Mag sec
10.36
delta mag (ΔM)
0.08
Spectral class
Pri motion ra
+017
Sec motion ra
+016
Pri motion dec
+004
Sec motion dec
+004
Notes
rPM=0.057 (< 0.3, Physical double)
This double is physical.
 
 
18397+4035 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18397+4035 AG 225 AB 1892 2012 18 355 6.4 10.28 10.36 0.08 <===
Show 18397+4035 AG 225 AC 1917 2012 7 234 12.6 10.28 14.00 3.72
Show 18397+4035 FYM 35 AD 1999 2012 4 274 30.1 10.28 14.52 4.24
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
354.6
Precise sep
6.42
Constellation
Lyra
Tycho2
3109-01844-1
last precise pa
354.6
last precise sep
6.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18397+4035 AG 225 AB 2006 14 355 6.5 10.28 10.36 D 183945.59+403440.0
18397+4035 AG 225 AB 2012 17 355 6.4 10.28 10.36 D 183945.59+403440.0

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