12509-5743 TOK 385 (HD 111570)

 
 
12h 50m 53.95s -57° 43' 17.7" P.A. 106.00 sep 0.1 mag 8.80,12.40 Sp K0/1+F/G dist. 49.58 pc (161.73 l.y.)
 
 
Coord 2000 12509-5743 Discov num TOK 385 Comp Coord arcsec 2000 12 50 53.95 -57 43 17.7
Date first 2013 Date last 2021 Obs 7
Pa first 113 Pa last 106.3 P.A. Now (θ) 106.3°
Sep first 0.2 Sep last 0.147 Sep. Now (ρ) 0.147"
Mag pri 8.80 Mag sec 12.40 delta mag (ΔM) 3.6 Spectral class K0/1+F/G (yellow-orange/yellow-white)
Pri motion ra -089 Sec motion ra
Pri motion dec +041 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 111570 Constellation Crux SAO 240313 HIP 62699
Tycho2 8655-02007-1 Gaia DR2 6060462329456045056 HD 111570 CP CP-57 5743
Distance 49.58 Distance ly 161.73
 
 
ORBITAL ELEMENTS
 
 
Period (P)12.76y± 1.32 Periastron (T)2018.59y± 0.42 Semi-major axis (a)0.104a± 0.02
Eccentricity (e)0.95 Inclination (i)60.6°± 12.3 Longitude of periastron (ω)202.2°± 32.7
Node (Ω)100.2°± 14.1 Notes ReferenceTok2021f
Equinox Last observation2021 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 112.2 0.189
2001 113.6 0.180
2002 115.2 0.165
2003 117.1 0.142
2004 120.1 0.110
2005 126.5 0.063
2006 86.6 0.025
2007 101.8 0.099
2008 105.1 0.139
2009 107.1 0.165
2010 108.6 0.181
2011 110.0 0.190
2012 111.3 0.192
2013 112.6 0.188
2014 113.9 0.177
2015 115.6 0.160
2016 117.7 0.135
2017 121.1 0.100
2018 130.2 0.048
2019 95.1 0.050
2020 102.8 0.111
2021 105.6 0.146
2022 107.5 0.169
2023 109.0 0.184
2024 110.3 0.191
2025 111.6 0.191
2026 112.9 0.186
2027 114.3 0.174
2028 116.0 0.155
2029 118.4 0.128
2030 122.3 0.090


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



 
 


wds12509-5743a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic