21023+3931 SMY   6AD

 
 
21H 02M 20.95S +39 30' 32.5" P.A. 141 SEP 57.1 MAG 6.62,12.61 SP K3II-III
 
 
Coord 2000
21023+3931
Discov num
SMY   6
Comp
AD
Coord arcsec 2000
21 02 20.95 +39 30 32.5
Date first
1862
Date last
2012
Obs
7
Pa first
139
Pa last
141
P.A. Now (θ)
141°
Sep first
54.8
Sep last
57.1
Sep. Now (ρ)
57.1"
Mag pri
6.62
Mag sec
12.61
delta mag (ΔM)
5.99
Spectral class
K3II-III (yellow-orange)
Pri motion ra
+002
Sec motion ra
-008
Pri motion dec
+001
Sec motion dec
-010
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
21023+3931 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21023+3931 H 4 113 AB 1783 2012 33 299 19.2 6.62 9.49 2.87
Show 21023+3931 H 4 113 AC 1876 2012 10 248 26.7 6.62 12.50 5.88
Show 21023+3931 SMY 6 AD 1862 2012 7 141 57.1 6.62 12.61 5.99 <===
Show 21023+3931 SMY 6 AE 1862 2012 8 87 97.0 6.62 10.88 4.26
Show 21023+3931 WRD 4 AF 1875 2012 4 222 102.2 6.62 12.45 5.83
Show 21023+3931 WRD 4 AG 1875 1875 1 230 95.0 6.62 13.50 6.88
Show 21023+3931 FYM 114 AI 2000 2012 3 277 41.1 6.62 15.20 8.58
Show 21023+3931 WRD 4 ED 2000 2012 3 230 77.9 10.88 12.61 1.73
Show 21023+3931 WRD 4 EH 1951 2012 5 160 37.5 10.88 12.84 1.96
Ninefold system
9 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
last precise pa
140.9
last precise sep
57.1