20136+3553 SEI1021BC

 
 
20H 13M 33.07S +35 52' 48.4" P.A. 52 SEP 3.2 MAG 12.40,14.20
 
 
Coord 2000
20136+3553
Discov num
SEI1021
Comp
BC
Coord arcsec 2000
20 13 33.07 +35 52 48.4
Date first
2002
Date last
2002
Obs
1
Pa first
52
Pa last
52
P.A. Now (θ)
52°
Sep first
3.2
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
12.40
Mag sec
14.20
delta mag (ΔM)
1.8
Spectral class
Pri motion ra
+004
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20136+3553 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20136+3553 SEI1021 AB 1896 2011 7 247 13.4 10.90 12.40 1.50
Show 20136+3553 SEI1021 AC 2002 2002 1 252 10.5 10.90 14.20 3.30
Show 20136+3553 SEI1021 AD 1999 2002 2 121 7.1 10.90 15.10 4.20
Show 20136+3553 SEI1021 BC 2002 2002 1 52 3.2 12.40 14.20 1.80 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
Tycho2
2683-03118-1
last precise pa
52.2
last precise sep
3.247