11390+4109 STT 237 AB (HD 101207)

 
 
11h 38m 57.22s +41° 08' 34.8" P.A. 244.00 sep 1.9 mag 8.11,9.32 Sp F7V dist. 79.74 pc (260.11 l.y.)
 
 
Coord 2000 11390+4109 Discov num STT 237 Comp AB Coord arcsec 2000 11 38 57.22 +41 08 34.8
Date first 1843 Date last 2019 Obs 122
Pa first 294 Pa last 244.2 P.A. Now (θ) 244.2°
Sep first 0.6 Sep last 1.93 Sep. Now (ρ) 1.93"
Mag pri 8.11 Mag sec 9.32 delta mag (ΔM) 1.21 Spectral class F7V (yellow-white)
Pri motion ra -082 Sec motion ra -081
Pri motion dec -035 Sec motion dec -038
Notes O (Orbital solution)
rPM=0.035 (< 0.3, Physical double)
This double is physical.
 
 
11390+4109 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 101207 43844 11 38 57 +41 08 35 STT 237 AB 2019 122 244 1.9 8.11 9.32 1.21 Y <===
Show 43844 11 38 57 +41 08 35 HJL 1065 AC 2015 12 4 132.3 8.11 9.18 1.07
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 101207 Constellation Ursa Major SAO 43844 HIP 56827
Tycho2 3013-01246-1 Gaia DR2 767786255256769664 HD 101207 ADS 8252
BD BD+41 2219 Distance 79.74 Distance ly 260.11
 
 
ORBITAL ELEMENTS
 
 
Period (P)652.0836y± 724.5249 Periastron (T)1792.8651y± 28.2248 Semi-major axis (a)2.02878a± 1.42101
Eccentricity (e)0.87304± 0.10656 Inclination (i)117.55°± 16.911 Longitude of periastron (ω)301.836°± 24.561
Node (Ω)16.911°± 36.261 Notes ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 245.6 1.973
2001 245.5 1.979
2002 245.3 1.985
2003 245.2 1.991
2004 245.1 1.997
2005 244.9 2.003
2006 244.8 2.009
2007 244.7 2.015
2008 244.6 2.021
2009 244.4 2.027
2010 244.3 2.033
2011 244.2 2.038
2012 244.1 2.044
2013 243.9 2.050
2014 243.8 2.055
2015 243.7 2.061
2016 243.6 2.067
2017 243.5 2.072
2018 243.3 2.078
2019 243.2 2.084
2020 243.1 2.089
2021 243.0 2.095
2022 242.9 2.100
2023 242.8 2.106
2024 242.6 2.111
2025 242.5 2.116
2026 242.4 2.122
2027 242.3 2.127
2028 242.2 2.132
2029 242.1 2.138
2030 242.0 2.143


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



 
 


wds11390%2B4109b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic