21503+7410 UC 4578AB

 
 
21H 50M 19.43S +74 09' 36.3" P.A. 187 SEP 73.6 MAG 15.05,15.36
 
 
Coord 2000
21503+7410
Discov num
UC 4578
Comp
AB
Coord arcsec 2000
21 50 19.43 +74 09 36.3
Date first
1953
Date last
2013
Obs
6
Pa first
187
Pa last
187
P.A. Now (θ)
187°
Sep first
73.2
Sep last
73.6
Sep. Now (ρ)
73.6"
Mag pri
15.05
Mag sec
15.36
delta mag (ΔM)
0.31
Spectral class
Pri motion ra
-010
Sec motion ra
-003
Pri motion dec
+097
Sec motion dec
+107
Notes
rPM=0.114 (< 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
 
 
Constellation
Cepheus
last precise pa
186.9
last precise sep
73.6