21215+3719 ROE  24AC

 
 
21H 21M 33.43S +37 17' 51.8" P.A. 266 SEP 68.7 MAG 11.98,11.42
 
 
Coord 2000
21215+3719
Discov num
ROE  24
Comp
AC
Coord arcsec 2000
21 21 33.43 +37 17 51.8
Date first
1991
Date last
2015
Obs
4
Pa first
267
Pa last
266
P.A. Now (θ)
266°
Sep first
68.7
Sep last
68.7
Sep. Now (ρ)
68.7"
Mag pri
11.98
Mag sec
11.42
delta mag (ΔM)
0.56
Spectral class
Pri motion ra
-007
Sec motion ra
-005
Pri motion dec
-020
Sec motion dec
+004
Notes
rPM=1.137
This double is not physical.
 
 
21215+3719 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21215+3719 ROE 24 AB 1909 2015 6 168 10.3 11.98 11.53 0.45
Show 21215+3719 ROE 24 AC 1991 2015 4 266 68.7 11.98 11.42 0.56 <===
Show 21215+3719 ROE 24 AD 1909 2015 8 266 81.7 11.98 11.82 0.16
Show 21215+3719 ROE 23 CD 1909 2015 7 261 13.1 11.42 11.82 0.40
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
Tycho2
2715-00852-1
last precise pa
266.4
last precise sep
68.66