17121+2114 STF2135AB

 
 
17h 12m 06.06s +21 13' 44.4" P.A. 194 sep 8.6 mag 7.59,8.88 Sp K0 dist. 152.44 pc (497.26 l.y.)
 
 
Coord 2000
17121+2114
Discov num
STF2135
Comp
AB
Coord arcsec 2000
17 12 06.06 +21 13 44.4
Date first
1829
Date last
2015
Obs
167
Pa first
166
Pa last
194
P.A. Now (θ)
194°
Sep first
6.7
Sep last
8.6
Sep. Now (ρ)
8.6"
Mag pri
7.59
Mag sec
8.88
delta mag (ΔM)
1.29
Spectral class
K0 (yellow-orange)
Pri motion ra
+022
Sec motion ra
-001
Pri motion dec
+002
Sec motion dec
-011
Notes
L (Linear solution)
rPM=1.196
This double is not physical.
 
 
17121+2114 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 84910 17121+2114 STF2135 AB 1829 2015 167 194 8.6 7.59 8.88 1.29 <===
Show 84910 17121+2114 STF2135 AC 1911 2015 6 208 162.1 7.59 12.91 5.32
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
193.9
Precise sep
8.64
Constellation
Hercules
SAO
84910
HIP
84137
Tycho2
1548-00181-1
HD
155642
BD
BD+21 3063
Distance
152.44
Distance ly
497.26
last precise pa
193.9
last precise sep
8.64
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17121+2114 STF2135 AB 2007 148 193 8.5 7.59 8.88 K0 LD 171206.06+211344.4
17121+2114 STF2135 AB 2008 150 193 8.5 7.59 8.88 K0 LD 171206.06+211344.4
17121+2114 STF2135 AB 2010 152 193 8.4 7.59 8.88 K0 LD 171206.06+211344.4
17121+2114 STF2135 AB 2012 155 194 8.5 7.59 8.88 K0 LD 171206.06+211344.4
17121+2114 STF2135 AB 2014 157 194 8.7 7.59 8.88 K0 LD 171206.06+211344.4
17121+2114 STF2135 AB 2015 167 194 8.6 7.59 8.88 K0 L 171206.06+211344.4

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