20506+5452 DJU   5CD

 
 
20H 50M 40.79S +54 52' 29.6" P.A. 173 SEP 4 MAG 12.60,13.30
 
 
Coord 2000
20506+5452
Discov num
DJU   5
Comp
CD
Coord arcsec 2000
20 50 40.79 +54 52 29.6
Date first
1954
Date last
2009
Obs
5
Pa first
167
Pa last
173
P.A. Now (θ)
173°
Sep first
3.8
Sep last
4.0
Sep. Now (ρ)
4"
Mag pri
12.60
Mag sec
13.30
delta mag (ΔM)
0.7
Spectral class
Pri motion ra
-004
Sec motion ra
-007
Pri motion dec
-002
Sec motion dec
-006
Notes
rPM=0.542
Nature of this double is uncertain.
 
 
20506+5452 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20506+5452 HJ 1587 AB 1828 2009 8 259 10.1 10.80 12.40 1.60
Show 20506+5452 DJU 5 AC 1954 2009 4 66 78.5 10.80 12.60 1.80
Show 20506+5452 DJU 5 CD 1954 2009 5 173 4.0 12.60 13.30 0.70 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
last precise pa
172.7
last precise sep
4.04