19568+4416 STT 391AB

 
 
19h 56m 50.15s +44 16' 16.0" P.A. 51 sep 17.8 mag 7.91,10.55 Sp A0p
 
 
Coord 2000
19568+4416
Discov num
STT 391
Comp
AB
Coord arcsec 2000
19 56 50.15 +44 16 16.0
Date first
1843
Date last
2013
Obs
16
Pa first
53
Pa last
51
P.A. Now (θ)
51°
Sep first
17.8
Sep last
17.8
Sep. Now (ρ)
17.8"
Mag pri
7.91
Mag sec
10.55
delta mag (ΔM)
2.64
Spectral class
A0p (white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
+002
Sec motion dec
+003
Notes
V (Proper motion indicates physical)
rPM=0.2 (< 0.3, Physical double)
This double is physical.
 
 
19568+4416 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19568+4416 STT 391 AB 1843 2013 16 51 17.8 7.91 10.55 2.64 <===
Show 19568+4416 STU 12 AC 1892 2013 7 134 33.0 7.91 12.73 4.82
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
50.9
Precise sep
17.82
Constellation
Cygnus
last precise pa
50.9
last precise sep
17.82
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19568+4416 STT 391 AB 2000 12 51 18.1 7.92 10.20 A0p D 195650.15+441616.0
19568+4416 STT 391 AB 2011 13 51 17.9 7.90 9.90 A0p D 195650.15+441616.0
19568+4416 STT 391 AB 2013 15 51 17.8 7.91 10.55 A0p 195650.15+441616.0

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