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
Cdsa2 id
HO 603 BC
Constellation
Cygnus
Ra deg
21.53290833333333
De deg
34.19438888888889
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

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