20490+2932 BRT  51BC

 
 
20H 48M 57.23S +29 32' 17.1" P.A. 127 SEP 4.6 MAG 10.60,11.80
 
 
Coord 2000
20490+2932
Discov num
BRT  51
Comp
BC
Coord arcsec 2000
20 48 57.23 +29 32 17.1
Date first
1894
Date last
2009
Obs
6
Pa first
121
Pa last
127
P.A. Now (θ)
127°
Sep first
5.7
Sep last
4.6
Sep. Now (ρ)
4.6"
Mag pri
10.60
Mag sec
11.80
delta mag (ΔM)
1.2
Spectral class
Pri motion ra
-018
Sec motion ra
Pri motion dec
+168
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20490+2932 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 89164 20490+2932 BRT 51 AB 1894 2010 6 355 6.6 9.20 10.60 1.40
Show 89164 20490+2932 BRT 51 AC 1894 2010 6 38 4.9 9.20 11.80 2.60
Show 89164 20490+2932 BRT 51 BC 1894 2009 6 127 4.6 10.60 11.80 1.20 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
SAO
89164
Tycho2
2183-00855-1
HD
335167
last precise pa
126.8
last precise sep
4.59