17190-3459 MLO 4 AB (NSV8482)

 
 
17h 18m 57.16s -34° 59' 23.1" P.A. 323.00 sep 1.3 mag 6.37,7.38 Sp K3V+K5V dist. 6.84 pc (22.31 l.y.)
 
 
Coord 2000 17190-3459 Discov num MLO   4 Comp AB Coord arcsec 2000 17 18 57.16 -34 59 23.1
Date first 1876 Date last 2021 Obs 269
Pa first 240 Pa last 323 P.A. Now (θ) 314.1°
Sep first 1.8 Sep last 1.272 Sep. Now (ρ) 1.534"
Mag pri 6.37 Mag sec 7.38 delta mag (ΔM) 1.01 Spectral class K3V+K5V (yellow-orange/yellow-orange)
Pri motion ra +116 Sec motion ra
Pri motion dec -017 Sec motion dec
Notes N O P (See Notes, Orbital solution, 100-year proper motion)
This double is physical.
 
 
17190-3459 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show NSV8482 208670 17 18 57 -34 59 23 MLO 4 AB 2021 269 323 1.3 6.37 7.38 1.01 Y <===
Show 208670 17 18 57 -34 59 23 HJ 4935 AC 2022 66 142 32.6 6.37 10.27 3.90 Y
Show 208670 17 18 57 -34 59 23 SEE 509 AD 2022 28 285 92.0 6.37 12.45 6.08
Show 17 18 56 -34 59 22 HJ 4935 BC 2002 45 136 31.4 7.38 10.27 2.89
Show 17 18 56 -34 59 22 SEE 509 BD 1959 26 312 20.3 7.38 12.45 5.07
Show 17 18 59 -34 59 48 SEE 509 CD 2022 33 294 119.7 10.27 12.45 2.18
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV8482 Constellation Scorpius SAO 208670 HIP 84709
Tycho2 7370-00850-1 HD 156384 HR 6426 GC 23362
GL Gl 667A CD CD-3411626 CP CP-34 6803 Distance 6.84
Distance ly 22.31
 
 
ORBITAL ELEMENTS
 
 
Period (P)42.089y± 0.063 Periastron (T)58138.3d (2018.053y)± 5.8 Semi-major axis (a)1824.7m± 5.2
Eccentricity (e)0.573± 0.0034 Inclination (i)127.57°± 0.22 Longitude of periastron (ω)68.09°± 0.19
Node (Ω)133.22°± 0.5 Notesn ReferenceMnA2019
Equinox Last observation Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 244.5 1.800
2001 240.0 1.750
2002 235.2 1.701
2003 230.1 1.653
2004 224.8 1.608
2005 219.1 1.565
2006 213.2 1.526
2007 206.9 1.491
2008 200.4 1.459
2009 193.5 1.430
2010 186.4 1.403
2011 179.1 1.376
2012 171.4 1.344
2013 163.3 1.301
2014 154.5 1.240
2015 144.5 1.144
2016 132.1 0.996
2017 114.0 0.777
2018 79.3 0.537
2019 22.7 0.529
2020 347.5 0.789
2021 330.8 1.080
2022 321.0 1.330
2023 314.1 1.534
2024 308.6 1.697
2025 304.0 1.826
2026 300.0 1.928
2027 296.3 2.006
2028 292.9 2.064
2029 289.6 2.105
2030 286.5 2.131


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds17190-3459d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic