21378+3739 MBR   1AC

 
 
21H 37M 52.23S +37 39' 04.0" P.A. 90 SEP 13.6 MAG 9.88,13.80
 
 
Coord 2000
21378+3739
Discov num
MBR   1
Comp
AC
Coord arcsec 2000
21 37 52.23 +37 39 04.0
Date first
2002
Date last
2013
Obs
2
Pa first
89
Pa last
90
P.A. Now (θ)
90°
Sep first
14.5
Sep last
13.6
Sep. Now (ρ)
13.6"
Mag pri
9.88
Mag sec
13.80
delta mag (ΔM)
3.92
Spectral class
Pri motion ra
+003
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21378+3739 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21378+3739 SEI1527 AB 1895 2014 8 332 25.1 9.88 12.89 3.01
Show 21378+3739 MBR 1 AC 2002 2013 2 90 13.6 9.88 13.80 3.92 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
Tycho2
3183-00473-1
last precise pa
90
last precise sep
13.6