19396+2945 BU   54AC

 
 
19h 39m 35.20s +29 44' 55.5" P.A. 304 sep 21.8 mag 7.49,11.30 Sp B8Vn dist. 315.46 pc (1029.03 l.y.)
 
 
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
2015
Obs
15
Pa first
303
Pa last
304
P.A. Now (θ)
304°
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 2015 29 103 11.0 7.49 10.23 2.74
Show 19396+2945 BU 54 AC 1876 2015 15 304 21.8 7.49 11.30 3.81 <===
Show 19396+2945 ABH 124 AD 1895 2015 11 147 47.8 7.49 10.63 3.14
Show 19396+2945 ABH 124 AE 1895 2015 9 164 65.7 7.49 12.72 5.23
Show 19396+2945 ABH 124 AF 1900 2015 12 180 89.3 7.49 10.39 2.90
Show 19396+2945 ABH 124 AG 1988 2015 7 229 39.4 7.49 12.92 5.43
Show 19396+2945 ABH 124 AH 1895 2015 11 92 103.6 7.49 10.54 3.05
Show 19396+2945 ABH 124 AI 1895 2015 11 116 100.5 7.49 12.10 4.61
Show 19396+2945 BKO 77 AJ 1997 2015 6 124 27.9 7.49 14.00 6.51
Show 19396+2945 BKO 77 AK 1997 2015 6 97 69.2 7.49 14.60 7.11
Show 19396+2945 BKO 77 AL 1997 2015 6 220 30.1 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
303.5
Precise sep
21.781
Constellation
Cygnus
SAO
87522
HIP
96709
Tycho2
2150-02662-1
Gaia DR2
35530782592
HD
185756
BD
BD+29 3686
Distance
315.46
Distance ly
1029.03
 
 
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
19396+2945 BU 54 AC 2015 15 304 21.8 7.49 11.30 B8Vn U 193935.20+294455.5

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