16120-1928 CHR 146 Aa,Ab

16h 11m 59.74s -19° 27' 38.3" P.A. 344.00 sep 0.1 mag 4.50,6.80 Sp B2IV dist. 145.35 pc (474.13 l.y.)

Coord 2000 16120-1928 Discov num CHR 146 Comp Aa,Ab Coord arcsec 2000 16 11 59.74 -19 27 38.3
Date first 1988 Date last 2021 Obs 15
Pa first 352 Pa last 344.2 P.A. Now (θ) 346.1°
Sep first 0.1 Sep last 0.081 Sep. Now (ρ) 0.072"
Mag pri 4.50 Mag sec 6.80 delta mag (ΔM) 2.3 Spectral class B2IV (blue-white)
Pri motion ra -007 Sec motion ra
Pri motion dec -028 Sec motion dec
Notes N O (See Notes, Orbital solution)




This double is physical.



16120-1928 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 159764 16 11 60 -19 27 38 CHR 146 Aa,Ab 2021 15 344 0.1 4.50 6.80 2.30 Y <===
Show Jabbah 159764 16 11 60 -19 27 38 BU 120 AB 2021 124 1 1.4 4.35 5.31 0.96
Show 159764 16 11 60 -19 27 38 H 5 6 AC 2019 91 336 41.3 4.35 6.60 2.25
Show 159764 16 11 60 -19 27 38 LAF 127 AE 2010 2 318 5.3 3.88 14.02 10.14
Show 159763 16 11 59 -19 27 00 MTL 2 CD 2019 110 55 2.4 6.60 7.23 0.63


Sextuple system
5 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Common name Jabbah Constellation Scorpius SAO 159764 HIP 79374
Tycho2 6209-01537-1 Gaia DR2 6245697981070158080 HD 145502 HR 6027
GC 21773 ADS 9951 BD BD-19 4333 Bayer Nu Scorpii
Bayer name Nu Sco Flamsteed 14 Scorpii Flamsteed name 14 Sco Distance 145.35
Distance ly 474.13 Bayer greek ν Sco




ORBITAL ELEMENTS

Period (P)10.06y± 0.12 Periastron (T)2015y± 2.5 Semi-major axis (a)0.073a± 0.068
Eccentricity (e)0.92 Inclination (i)89.7°± 1.5 Longitude of periastron (ω)118.9°± 39
Node (Ω)346.4°± 2.5 Notesn ReferenceTok2021f
Equinox Last observation2021 Grade3(1=Definitive, 9=Indet.)

label theta rho
2000 345.9 0.068
2001 345.9 0.074
2002 346.0 0.076
2003 346.1 0.071
2004 346.2 0.055
2005 166.5 0.010
2006 343.6 0.008
2007 345.3 0.028
2008 345.6 0.045
2009 345.8 0.058
2010 345.9 0.068
2011 345.9 0.074
2012 346.0 0.076
2013 346.1 0.071
2014 346.2 0.057
2015 165.9 0.003
2016 343.1 0.006
2017 345.3 0.027
2018 345.6 0.044
2019 345.8 0.057
2020 345.9 0.067
2021 345.9 0.074
2022 346.0 0.076
2023 346.1 0.072
2024 346.2 0.058
2025 346.6 0.009
2026 342.4 0.005
2027 345.2 0.026
2028 345.6 0.043
2029 345.7 0.057
2030 345.8 0.067


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



 
 


wds16120-1928a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic