21238+4710 A   765CD

 
 
21h 23m 51.16s +47 10' 16.6" P.A. 343 sep 5.8 mag 14.00,14.50 dist. 1041.67 pc (3397.93 l.y.)
 
 
Coord 2000
21238+4710
Discov num
A   765
Comp
CD
Coord arcsec 2000
21 23 51.16 +47 10 16.6
Date first
1904
Date last
2003
Obs
5
Pa first
330
Pa last
343
P.A. Now (θ)
343°
Sep first
6.4
Sep last
5.8
Sep. Now (ρ)
5.8"
Mag pri
14.00
Mag sec
14.50
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
+015
Sec motion ra
+008
Pri motion dec
-029
Sec motion dec
-002
Notes
rPM=0.854
This double is not physical.
 
 
21238+4710 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 50792 21238+4710 A 765 AB 1904 2016 21 22 0.6 9.02 7.33 1.69
Show 50792 21238+4710 A 765 AB,C 1904 2003 5 22 26.4 7.12 14.00 6.88
Show 50792 21238+4710 A 765 CD 1904 2003 5 343 5.8 14.00 14.50 0.50 <===
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
343.3
Precise sep
5.839
Spectr
B0.5IV
Constellation
Cygnus
SAO
50792
HIP
105640
Tycho2
3594-01695-1
HD
203938
BD
BD+46 3294
Distance
1041.67
Distance ly
3397.93
last precise pa
343.3
last precise sep
5.839
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21238+4710 A 765 CD 1998 4 343 5.9 14.00 14.50 D 212351.16+471016.6
21238+4710 A 765 CD 2003 5 343 5.8 14.00 14.50 D 212351.16+471016.6
21238+4710 A 765 CD 2010 6 341 6.6 14.00 14.50 212351.16+471016.6

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