12186-1424 YSC 44 (HD 107040)

12h 18m 35.40s -14° 24' 25.8" P.A. 72.00 sep 0.1 mag 8.20,8.50 Sp F2/3III dist. 128.21 pc (418.22 l.y.)

Coord 2000 12186-1424 Discov num YSC  44 Comp Coord arcsec 2000 12 18 35.40 -14 24 25.8
Date first 2007 Date last 2021 Obs 12
Pa first 61 Pa last 72 P.A. Now (θ) 65.6°
Sep first 0.1 Sep last 0.083 Sep. Now (ρ) 0.09"
Mag pri 8.20 Mag sec 8.50 delta mag (ΔM) 0.3 Spectral class F2/3III (yellow-white)
Pri motion ra -054 Sec motion ra
Pri motion dec -005 Sec motion dec
Notes O (Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 107040 Constellation Corvus SAO 157202 HIP 60022
Tycho2 5532-01650-1 Gaia DR2 3569903875006499072 HD 107040 BD BD-13 3514
Distance 128.21 Distance ly 418.22




ORBITAL ELEMENTS

Period (P)17.19y± 0.9 Periastron (T)2011.66y± 0.06 Semi-major axis (a)0.072a± 0.002
Eccentricity (e)0.63± 0.029 Inclination (i)105.6°± 1 Longitude of periastron (ω)126.3°± 3.7
Node (Ω)54.5°± 1.8 Notes ReferenceTok2021c
Equinox2000 Last observation2020 Grade3(1=Definitive, 9=Indet.)

label theta rho
2000 97.1 0.041
2001 86.5 0.052
2002 79.7 0.064
2003 74.9 0.073
2004 71.1 0.081
2005 67.9 0.087
2006 65.0 0.090
2007 62.2 0.089
2008 59.2 0.084
2009 55.6 0.073
2010 50.0 0.053
2011 28.7 0.019
2012 238.8 0.028
2013 218.9 0.035
2014 196.0 0.028
2015 159.0 0.023
2016 121.6 0.028
2017 99.9 0.038
2018 88.1 0.050
2019 80.8 0.062
2020 75.7 0.072
2021 71.8 0.080
2022 68.5 0.086
2023 65.6 0.090
2024 62.8 0.090
2025 59.8 0.086
2026 56.4 0.076
2027 51.4 0.058
2028 37.5 0.026
2029 245.6 0.022
2030 222.3 0.036


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



 
 


wds12186-1424a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic