17122-2703 BU  125AB

 
 
17h 12m 10.97s -27 02' 31.7" P.A. 66 sep 1.8 mag 6.92,9.65 Sp G8IV dist. 140.85 pc (459.45 l.y.)
 
 
Coord 2000
17122-2703
Discov num
BU  125
Comp
AB
Coord arcsec 2000
17 12 10.97 -27 02 31.7
Date first
1873
Date last
2016
Obs
17
Pa first
90
Pa last
66
P.A. Now (θ)
66°
Sep first
1.5
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
6.92
Mag sec
9.65
delta mag (ΔM)
2.73
Spectral class
G8IV (yellow)
Pri motion ra
-051
Sec motion ra
-051
Pri motion dec
-084
Sec motion dec
-084
Notes
Nature of this double is uncertain.
 
 
17122-2703 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 185137 17122-2703 BU 125 AB 1873 2016 17 66 1.8 6.92 9.65 2.73 <===
Show 185137 17122-2703 BU 125 AC 1892 2000 3 83 82.8 6.92 13.92 7.00
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
65.7
Precise sep
1.774
Constellation
Ophiuchus
SAO
185137
HIP
84144
Tycho2
6820-00053-1
HD
155363
CD
CD-2611990
Distance
140.85
Distance ly
459.45
last precise pa
65.7
last precise sep
1.774
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17122-2703 BU 125 AB 1991 16 66 1.8 6.92 9.65 G8IV D 171210.97-270231.7
17122-2703 BU 125 AB 2016 17 66 1.8 6.92 9.65 G8IV 171210.97-270231.7

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