21503+7410 UC 4578AC

 
 
21h 50m 19.43s +74 09' 36.3" P.A. 120 sep 51.1 mag 15.05,16.60
 
 
Coord 2000
21503+7410
Discov num
UC 4578
Comp
AC
Coord arcsec 2000
21 50 19.43 +74 09 36.3
Date first
1953
Date last
2013
Obs
6
Pa first
120
Pa last
120
P.A. Now (θ)
120°
Sep first
50.9
Sep last
51.1
Sep. Now (ρ)
51.1"
Mag pri
15.05
Mag sec
16.60
delta mag (ΔM)
1.55
Spectral class
Pri motion ra
-010
Sec motion ra
-005
Pri motion dec
+097
Sec motion dec
+095
Notes
rPM=0.055 (< 0.3, Physical double)
This double is physical.
 
 
21503+7410 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21503+7410 UC 4578 AB 1953 2013 6 187 73.6 15.05 15.36 0.31
Show 21503+7410 UC 4578 AC 1953 2013 6 120 51.1 15.05 16.60 1.55 <===
Show 21503+7410 UC 4578 BC 1953 2013 6 48 71.7 15.36 16.60 1.24
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
119.5
Precise sep
51.13
Constellation
Cepheus
last precise pa
119.5
last precise sep
51.13
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21503+7410 UC 4578 AC 2000 2 120 51.2 14.80 16.40 V 215019.43+740936.3
21503+7410 UC 4578 AC 2003 2 120 51.1 14.80 16.40 V 215019.43+740936.3
21503+7410 UC 4578 AC 2013 6 120 51.1 15.05 16.60 V 215019.43+740936.3

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