21028+4551 BU 1138CE

 
 
21H 02M 40.75S +45 53' 05.1" P.A. 249 SEP 23.6 MAG 7.82,12.38 SP K2 DIST. 19.47 PC (63.51 L.Y.)
 
 
Coord 2000
21028+4551
Discov num
BU 1138
Comp
CE
Coord arcsec 2000
21 02 40.75 +45 53 05.1
Date first
1908
Date last
2003
Obs
9
Pa first
68
Pa last
249
P.A. Now (θ)
249°
Sep first
17.1
Sep last
23.6
Sep. Now (ρ)
23.6"
Mag pri
7.82
Mag sec
12.38
delta mag (ΔM)
4.56
Spectral class
K2 (yellow-orange)
Pri motion ra
+404
Sec motion ra
+076
Pri motion dec
+141
Sec motion dec
+022
Notes
N L U (See Notes, Linear solution, Proper motion indicates non-physical)
rPM=0.8149999999999999
This double is not physical.
 
 
21028+4551 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 50390 21028+4551 BU 1138 AB 1888 2006 57 182 0.2 7.10 7.30 0.20 Y
Show 50390 21028+4551 BU 1138 AC 1892 2012 21 330 152.1 6.46 7.82 1.36
Show 50388 21028+4551 KUI 104 CD 1934 2006 10 90 2.9 7.82 13.40 5.58
Show 50388 21028+4551 BU 1138 CE 1908 2003 9 249 23.6 7.82 12.38 4.56 <===
Show 50388 21028+4551 FYM 331 CF 2000 2015 3 43 12.5 7.82 15.70 7.88
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
V2436 Cyg
Constellation
Cygnus
SAO
50388
HIP
103859
Tycho2
3588-03634-1
HD
200560
GL
Gl 816.1A
BD
BD+45 3371
Distance
19.47
Distance ly
63.51
last precise pa
249.3
last precise sep
23.634