19551+3012 WAL 121AD

 
 
19h 55m 06.50s +30 11' 41.6" P.A. 145 sep 55.3 mag 6.63,12.21 Sp B6V
 
 
Coord 2000
19551+3012
Discov num
WAL 121
Comp
AD
Coord arcsec 2000
19 55 06.50 +30 11 41.6
Date first
1944
Date last
2013
Obs
3
Pa first
160
Pa last
145
P.A. Now (θ)
145°
Sep first
50.0
Sep last
55.3
Sep. Now (ρ)
55.3"
Mag pri
6.63
Mag sec
12.21
delta mag (ΔM)
5.58
Spectral class
B6V (blue-white)
Pri motion ra
+003
Sec motion ra
-004
Pri motion dec
-004
Sec motion dec
-005
Notes
rPM=1.104
This double is not physical.
 
 
19551+3012 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 69079 19551+3012 STT 390 AB 1849 2013 31 22 9.9 6.63 9.50 2.87
Show 19551+3012 STT 390 AC 1849 2013 15 177 16.4 6.63 11.23 4.60
Show 19551+3012 WAL 121 AD 1944 2013 3 145 55.3 6.63 12.21 5.58 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
144.6
Precise sep
55.31
Constellation
Cygnus
last precise pa
144.6
last precise sep
55.31
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19551+3012 WAL 121 AD 1998 2 160 50.3 6.63 12.21 B6V D 195506.50+301141.6
19551+3012 WAL 121 AD 2013 3 145 55.3 6.63 12.21 B6V 195506.50+301141.6

If you need more information about this double, apply for a data request form to the WDS.