16039-2032 KOH 70 AB

16h 03m 54.98s -20° 31' 38.2" P.A. 256.00 sep 0.1 mag 8.62,8.71 Sp M0

Coord 2000 16039-2032 Discov num KOH  70 Comp AB Coord arcsec 2000 16 03 54.98 -20 31 38.2
Date first 1994 Date last 2020 Obs 7
Pa first 141 Pa last 256.2 P.A. Now (θ) 256.2°
Sep first 0.1 Sep last 0.098 Sep. Now (ρ) 0.098"
Mag pri 8.62 Mag sec 8.71 delta mag (ΔM) 0.09 Spectral class M0 (red)
Pri motion ra -006 Sec motion ra
Pri motion dec -028 Sec motion dec
Notes O K (Orbital solution, K-band or other infrared magnitudes)


Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is physical.



16039-2032 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 16 03 55 -20 31 38 KOH 70 AB 2020 7 256 0.1 8.62 8.71 0.09 Y <===
Show 16 03 55 -20 31 38 KOH 70 AB,C 1996 1 82 4.0 8.62 13.90 5.28
Show 16 03 55 -20 31 38 LAF 99 AD 2010 2 203 2.8 8.62 19.35 10.73
Show 16 03 55 -20 31 38 LAF 99 AE 2008 1 217 3.3 8.62 18.77 10.15
Show 16 03 55 -20 31 38 LAF 99 AF 2015 3 354 4.3 8.62 13.37 4.75


Sextuple system
7 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Scorpius Gaia DR2 6244083039015457152




ORBITAL ELEMENTS

Period (P)52.6y Periastron (T)2006.3y Semi-major axis (a)0.116a
Eccentricity (e)0.3 Inclination (i)136.4° Longitude of periastron (ω)127.5°
Node (Ω)147.6° Notes ReferenceTok2018g
Equinox2000 Last observation2018 Grade5(1=Definitive, 9=Indet.)

label theta rho
2000 102.9 0.081
2001 92.2 0.073
2002 79.2 0.067
2003 64.0 0.063
2004 47.3 0.061
2005 30.5 0.063
2006 15.2 0.066
2007 1.8 0.072
2008 350.4 0.078
2009 340.5 0.083
2010 331.7 0.087
2011 323.7 0.091
2012 316.2 0.093
2013 309.0 0.095
2014 302.0 0.096
2015 295.1 0.096
2016 288.2 0.096
2017 281.3 0.096
2018 274.3 0.096
2019 267.4 0.096
2020 260.4 0.096
2021 253.6 0.097
2022 246.9 0.098
2023 240.3 0.100
2024 234.0 0.101
2025 228.0 0.104
2026 222.2 0.106
2027 216.8 0.109
2028 211.6 0.112
2029 206.6 0.115
2030 202.0 0.118


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



 
 


wds16039-2032a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic