05365+2556 CHR 203 (HD 36994)

 
 
05h 36m 30.18s +25° 56' 24.4" P.A. 244.00 sep 0.1 mag 6.50,8.30 Sp F5/6IV dist. 90.99 pc (296.81 l.y.)
 
 
Coord 2000 05365+2556 Discov num CHR 203 Comp Coord arcsec 2000 05 36 30.18 +25 56 24.4
Date first 1994 Date last 2019 Obs 8
Pa first 286 Pa last 243.7 P.A. Now (θ) 280.7°
Sep first 0.1 Sep last 0.063 Sep. Now (ρ) 0.11"
Mag pri 6.50 Mag sec 8.30 delta mag (ΔM) 1.8 Spectral class F5/6IV (yellow-white)
Pri motion ra +010 Sec motion ra
Pri motion dec +036 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 36994 Constellation Taurus SAO 77310 HIP 26322
Tycho2 1865-02075-1 Gaia DR2 3441080866450468096 HD 36994 HR 1889
GC 6955 BD BD+25 879 Distance 90.99 Distance ly 296.81
 
 
ORBITAL ELEMENTS
 
 
Period (P)13.56y± 0.12 Periastron (T)1993.65y± 0.29 Semi-major axis (a)0.0848a± 0.0181
Eccentricity (e)0.947± 0.01 Inclination (i)160°± 53.7 Longitude of periastron (ω)50°
Node (Ω)135.9°± 9.4 Notesn ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 268.6 0.159
2001 266.4 0.158
2002 264.0 0.153
2003 261.4 0.143
2004 258.3 0.128
2005 254.1 0.107
2006 247.1 0.075
2007 218.5 0.023
2008 292.5 0.060
2009 283.1 0.098
2010 278.4 0.123
2011 275.0 0.140
2012 272.3 0.151
2013 269.9 0.158
2014 267.6 0.159
2015 265.3 0.157
2016 262.9 0.150
2017 260.1 0.137
2018 256.6 0.120
2019 251.6 0.094
2020 241.2 0.057
2021 311.3 0.026
2022 287.2 0.079
2023 280.7 0.110
2024 276.8 0.131
2025 273.8 0.146
2026 271.2 0.155
2027 268.9 0.159
2028 266.6 0.159
2029 264.3 0.154
2030 261.7 0.145


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



 
 


wds05365%2B2556a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic