12210+4531 HDS1740Aa,Ab

 
 
12h 21m 02.43s +45 30' 52.9" P.A. 109 sep 0.5 mag 7.48,11.45 Sp G8III dist. 173.91 pc (567.29 l.y.)
 
 
Coord 2000
12210+4531
Discov num
HDS1740
Comp
Aa,Ab
Coord arcsec 2000
12 21 02.43 +45 30 52.9
Date first
1991
Date last
2012
Obs
4
Pa first
114
Pa last
109
P.A. Now (θ)
109°
Sep first
0.5
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
7.48
Mag sec
11.45
delta mag (ΔM)
3.97
Spectral class
G8III (yellow)
Pri motion ra
-087
Sec motion ra
Pri motion dec
-024
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
12210+4531 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 44135 12210+4531 HDS1740 Aa,Ab 1991 2012 4 109 0.5 7.48 11.45 3.97 <===
Show 44135 12210+4531 OPI 18 AB 1926 1926 1 257 3.9 7.45 12.30 4.85
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
108.7
Precise sep
0.451
Constellation
Canes Venatici
SAO
44135
HIP
60229
Tycho2
3455-02073-1
HD
107467
BD
BD+46 1778
Distance
173.91
Distance ly
567.29
last precise pa
108.7
last precise sep
0.451
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12210+4531 HDS1740 Aa,Ab 1991 1 114 0.5 7.48 11.45 G8III 122102.43+453052.9
12210+4531 HDS1740 Aa,Ab 2010 2 109 0.5 7.48 11.45 G8III D 122102.43+453052.9
12210+4531 HDS1740 Aa,Ab 2012 4 109 0.5 7.48 11.45 G8III 122102.43+453052.9

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