12465-2051 RST 2814 AB (HD 111017)

12h 46m 27.51s -20° 50' 52.8" P.A. 292.00 sep 0.1 mag 9.77,10.11 Sp G1V dist. 223.21 pc (728.11 l.y.)

Coord 2000 12465-2051 Discov num RST2814 Comp AB Coord arcsec 2000 12 46 27.51 -20 50 52.8
Date first 1935 Date last 2021 Obs 13
Pa first 173 Pa last 291.8 P.A. Now (θ) 291.8°
Sep first 0.3 Sep last 0.062 Sep. Now (ρ) 0.062"
Mag pri 9.77 Mag sec 10.11 delta mag (ΔM) 0.34 Spectral class G1V (yellow)
Pri motion ra -028 Sec motion ra
Pri motion dec +021 Sec motion dec
Notes O W (Orbital solution, )




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 111017 Constellation Corvus SAO 181090 HIP 62337
Tycho2 6110-01296-1 HD 111017 BD BD-20 3713 Distance 223.21
Distance ly 728.11




ORBITAL ELEMENTS

Period (P)136.2y± 11.5 Periastron (T)2013.13y± 0.51 Semi-major axis (a)0.189a± 0.009
Eccentricity (e)0.606± 0.025 Inclination (i)117.9°± 2.8 Longitude of periastron (ω)167.6°± 4.2
Node (Ω)163.6°± 3 Notes ReferenceTok2021f
Equinox Last observation2021 Grade4(1=Definitive, 9=Indet.)

label theta rho
2000 122.6 0.090
2001 117.8 0.081
2002 111.9 0.073
2003 104.5 0.065
2004 95.2 0.058
2005 83.5 0.052
2006 69.7 0.049
2007 54.5 0.048
2008 39.5 0.049
2009 26.0 0.053
2010 14.7 0.058
2011 5.3 0.064
2012 357.3 0.069
2013 350.3 0.073
2014 343.9 0.075
2015 337.8 0.076
2016 331.6 0.075
2017 325.2 0.073
2018 318.3 0.070
2019 310.9 0.067
2020 302.8 0.064
2021 294.0 0.062
2022 284.7 0.061
2023 275.1 0.060
2024 265.6 0.061
2025 256.5 0.063
2026 248.1 0.067
2027 240.7 0.071
2028 234.1 0.076
2029 228.3 0.081
2030 223.3 0.087


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



 
 


wds12465-2051a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic