05013+5015 STF 619 (HD 31796)

 
 
05h 01m 19.93s +50° 15' 25.3" P.A. 162.00 sep 4.2 mag 9.51,9.88 Sp F4V
 
 
Coord 2000 05013+5015 Discov num STF 619 Comp Coord arcsec 2000 05 01 19.93 +50 15 25.3
Date first 1830 Date last 2021 Obs 135
Pa first 106 Pa last 161.7 P.A. Now (θ) 161.7°
Sep first 5.4 Sep last 4.23 Sep. Now (ρ) 4.23"
Mag pri 9.51 Mag sec 9.88 delta mag (ΔM) 0.37 Spectral class F4V (yellow-white)
Pri motion ra +020 Sec motion ra -001
Pri motion dec -029 Sec motion dec -041
Notes O (Orbital solution)
rPM=0.59
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 31796 Constellation Auriga SAO 24955 Tycho2 3352-00841-1
Gaia DR2 256595846076116224 HD 31796 GC 6099 ADS 3593
 
 
ORBITAL ELEMENTS
 
 
Period (P)490c Periastron (T)2014y Semi-major axis (a)48a
Eccentricity (e)0.88 Inclination (i)45° Longitude of periastron (ω)275°
Node (Ω)242° Notes ReferenceKis2009
Equinox Last observation1999 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 154.3 4.078
2001 154.6 4.078
2002 155.0 4.078
2003 155.3 4.078
2004 155.6 4.079
2005 156.0 4.079
2006 156.3 4.080
2007 156.7 4.081
2008 157.0 4.081
2009 157.3 4.082
2010 157.7 4.083
2011 158.0 4.084
2012 158.4 4.086
2013 158.7 4.087
2014 159.1 4.088
2015 159.4 4.090
2016 159.7 4.092
2017 160.1 4.093
2018 160.4 4.095
2019 160.8 4.097
2020 161.1 4.099
2021 161.4 4.101
2022 161.8 4.104
2023 162.1 4.106
2024 162.4 4.109
2025 162.8 4.111
2026 163.1 4.114
2027 163.4 4.117
2028 163.8 4.119
2029 164.1 4.122
2030 164.5 4.126


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



 
 


wds05013%2B5015a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic