20144+3524 ES  244BC

 
 
20H 14M 28.41S +35 23' 59.1" P.A. 17 SEP 4.9 MAG 12.25,12.90
 
 
Coord 2000
20144+3524
Discov num
ES  244
Comp
BC
Coord arcsec 2000
20 14 28.41 +35 23 59.1
Date first
1905
Date last
1999
Obs
4
Pa first
14
Pa last
17
P.A. Now (θ)
17°
Sep first
5.0
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
12.25
Mag sec
12.90
delta mag (ΔM)
0.65
Spectral class
Pri motion ra
-001
Sec motion ra
+024
Pri motion dec
-001
Sec motion dec
+012
Notes
rPM=1.05
This double is not physical.
 
 
20144+3524 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 69673 20144+3524 ES 244 AB 1905 2002 6 130 41.2 8.44 12.25 3.81
Show 20144+3524 ES 244 BC 1905 1999 4 17 4.9 12.25 12.90 0.65 <===
Show 20144+3524 ES 244 CD 1905 1999 3 304 4.0 12.90 14.10 1.20
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
Tycho2
2679-00673-1
last precise pa
16.5
last precise sep
4.88