19396+2945 BU   54AC

 
 
19h 39m 35.20s +29 44' 55.5" P.A. 303 sep 21.8 mag 7.49,11.30 Sp B8Vn
 
 
Coord 2000
19396+2945
Discov num
BU   54
Comp
AC
Coord arcsec 2000
19 39 35.20 +29 44 55.5
Date first
1876
Date last
2012
Obs
14
Pa first
303
Pa last
303
P.A. Now (θ)
303°
Sep first
21.8
Sep last
21.8
Sep. Now (ρ)
21.8"
Mag pri
7.49
Mag sec
11.30
delta mag (ΔM)
3.81
Spectral class
B8Vn (blue-white)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-003
Sec motion dec
+000
Notes
U (Proper motion indicates non-physical)
rPM=0.949
This double is not physical.
 
 
19396+2945 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19396+2945 STF2557 AB 1831 2012 28 102 11.0 7.49 10.23 2.74
Show 19396+2945 BU 54 AC 1876 2012 14 303 21.8 7.49 11.30 3.81 <===
Show 19396+2945 ABH 124 AD 1895 2012 10 146 47.7 7.49 10.63 3.14
Show 19396+2945 ABH 124 AE 1895 2012 8 164 65.6 7.49 12.72 5.23
Show 19396+2945 ABH 124 AF 1900 2012 11 179 89.0 7.49 10.39 2.90
Show 19396+2945 ABH 124 AG 1988 2012 6 229 39.2 7.49 12.92 5.43
Show 19396+2945 ABH 124 AH 1895 2012 10 92 103.7 7.49 10.54 3.05
Show 19396+2945 ABH 124 AI 1895 2012 10 115 100.2 7.49 12.10 4.61
Show 19396+2945 BKO 77 AJ 1997 2012 5 123 27.6 7.49 14.00 6.51
Show 19396+2945 BKO 77 AK 1997 2012 5 96 68.9 7.49 14.60 7.11
Show 19396+2945 BKO 77 AL 1997 2012 5 220 30.2 7.49 15.00 7.51
Show 19396+2945 BKO 77 AM 1997 2006 4 119 111.6 7.49 15.30 7.81
13-fold system
13 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
303
Precise sep
21.8
Cdsa2 id
BU 54 AC
Constellation
Cygnus
Ra deg
19.659777777777776
De deg
29.74875
last precise pa
303
last precise sep
21.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19396+2945 BU 54 AC 2006 13 302 21.8 7.49 11.30 B8Vn D 193935.20+294455.5
19396+2945 BU 54 AC 2012 15 303 21.8 7.49 11.30 B8Vn UD 193935.20+294455.5

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