05447+3118 A 1040 (HD 38105)

 
 
05h 44m 41.69s +31° 18' 20.7" P.A. 85.00 sep 0.9 mag 8.91,9.42 Sp G0 dist. 226.76 pc (739.69 l.y.)
 
 
Coord 2000 05447+3118 Discov num A  1040 Comp Coord arcsec 2000 05 44 41.69 +31 18 20.7
Date first 1905 Date last 2016 Obs 34
Pa first 131 Pa last 84.7 P.A. Now (θ) 84.7°
Sep first 0.7 Sep last 0.879 Sep. Now (ρ) 0.879"
Mag pri 8.91 Mag sec 9.42 delta mag (ΔM) 0.51 Spectral class G0 (yellow)
Pri motion ra -023 Sec motion ra -023
Pri motion dec -008 Sec motion dec -008
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 38105 Constellation Auriga SAO 58387 HIP 27092
Tycho2 2405-00803-1 Gaia DR2 3445050172147422208 HD 38105 ADS 4317
BD BD+31 1072 Distance 226.76 Distance ly 739.69
 
 
ORBITAL ELEMENTS
 
 
Period (P)857.8234y± 421.4458 Periastron (T)2063.434y± 134.6363 Semi-major axis (a)1.5376a± 0.71052
Eccentricity (e)0.57783± 0.3085 Inclination (i)110.188°± 12.793 Longitude of periastron (ω)57.171°± 42.239
Node (Ω)80.192°± 22.67 Notes ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 91.8 0.880
2001 91.5 0.879
2002 91.1 0.878
2003 90.7 0.877
2004 90.4 0.876
2005 90.0 0.875
2006 89.7 0.873
2007 89.3 0.871
2008 88.9 0.869
2009 88.5 0.867
2010 88.2 0.865
2011 87.8 0.863
2012 87.4 0.860
2013 87.0 0.857
2014 86.7 0.855
2015 86.3 0.851
2016 85.9 0.848
2017 85.5 0.844
2018 85.1 0.841
2019 84.7 0.837
2020 84.3 0.833
2021 83.9 0.828
2022 83.5 0.823
2023 83.1 0.819
2024 82.7 0.813
2025 82.2 0.808
2026 81.8 0.802
2027 81.4 0.797
2028 80.9 0.790
2029 80.5 0.784
2030 80.0 0.777


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



 
 


wds05447%2B3118a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic