21321+3412 HO  603BC

 
 
21h 31m 58.47s +34 11' 39.8" P.A. 276 sep 3.6 mag 9.82,11.30 Sp G0
 
 
Coord 2000
21321+3412
Discov num
HO  603
Comp
BC
Coord arcsec 2000
21 31 58.47 +34 11 39.8
Date first
1896
Date last
2011
Obs
13
Pa first
271
Pa last
276
P.A. Now (θ)
276°
Sep first
3.3
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
9.82
Mag sec
11.30
delta mag (ΔM)
1.48
Spectral class
G0 (yellow)
Pri motion ra
+026
Sec motion ra
-015
Pri motion dec
-005
Sec motion dec
-001
Notes
rPM=1.556
This double is not physical.
 
 
21321+3412 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21321+3412 HO 603 AB 1893 2012 16 251 80.5 7.53 9.82 2.29
Show 21321+3412 HO 603 BC 1896 2011 13 276 3.6 9.82 11.30 1.48 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
275.9
Precise sep
3.55
Constellation
Cygnus
last precise pa
275.9
last precise sep
3.55
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21321+3412 HO 603 BC 1998 10 276 3.1 9.82 11.30 D 213158.47+341139.8
21321+3412 HO 603 BC 2009 11 275 3.6 9.82 11.30 D 213158.47+341139.8
21321+3412 HO 603 BC 2011 12 276 3.5 9.82 11.30 D 213158.47+341139.8

If you need more information about this double, apply for a data request form to the WDS.