17219+1230 HDS2451

 
 
17h 21m 54.75s +12 29' 59.1" P.A. 83 sep 0.4 mag 9.47,10.15 Sp G dist. 111.73 pc (364.46 l.y.)
 
 
Coord 2000
17219+1230
Discov num
HDS2451
Comp
Coord arcsec 2000
17 21 54.75 +12 29 59.1
Date first
1991
Date last
2010
Obs
5
Pa first
97
Pa last
83
P.A. Now (θ)
83°
Sep first
0.4
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.47
Mag sec
10.15
delta mag (ΔM)
0.68
Spectral class
G (yellow)
Pri motion ra
+003
Sec motion ra
Pri motion dec
+010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
82.7
Precise sep
0.387
Constellation
Ophiuchus
SAO
102772
HIP
84962
Tycho2
0999-02067-1
HD
157296
BD
BD+12 3202
Distance
111.73
Distance ly
364.46
last precise pa
82.7
last precise sep
0.387
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17219+1230 HDS2451 1999 2 94 0.4 9.47 10.15 G D 172154.75+122959.1
17219+1230 HDS2451 2008 3 85 0.4 9.47 10.15 G D 172154.75+122959.1
17219+1230 HDS2451 2010 4 83 0.4 9.47 10.15 G D 172154.75+122959.1

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