19521+3148 ES 2428AB

 
 
19h 52m 08.30s +31 47' 46.0" P.A. 90 sep 89.1 mag 8.82,11.10 Sp B8 dist. 558.66 pc (1822.35 l.y.)
 
 
Coord 2000
19521+3148
Discov num
ES 2428
Comp
AB
Coord arcsec 2000
19 52 08.30 +31 47 46.0
Date first
1902
Date last
2014
Obs
6
Pa first
90
Pa last
90
P.A. Now (θ)
90°
Sep first
87.7
Sep last
89.1
Sep. Now (ρ)
89.1"
Mag pri
8.82
Mag sec
11.10
delta mag (ΔM)
2.28
Spectral class
B8 (blue-white)
Pri motion ra
+002
Sec motion ra
+020
Pri motion dec
+002
Sec motion dec
-006
Notes
rPM=0.943
This double is not physical.
 
 
19521+3148 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 68995 19521+3148 ES 2428 AB 1902 2014 6 90 89.1 8.82 11.10 2.28 <===
Show 19521+3148 ES 2428 BC 1930 2006 4 255 4.9 11.10 11.10 0.00
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
90.1
Precise sep
89.106
Constellation
Cygnus
SAO
68995
HIP
97778
Tycho2
2669-00944-1
HD
331413
BD
BD+31 3815
Distance
558.66
Distance ly
1822.35
last precise pa
90.1
last precise sep
89.106
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19521+3148 ES 2428 AB 1930 2 92 87.0 8.60 11.10 B8 195208.30+314746.0
19521+3148 ES 2428 AB 1998 3 90 89.0 8.60 11.10 B8 195208.30+314746.0
19521+3148 ES 2428 AB 2011 4 90 89.2 8.60 11.10 B8 195208.30+314746.0
19521+3148 ES 2428 AB 2014 6 90 89.1 8.60 11.10 B8 195208.30+314746.0

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