03496-0220 YR 23 (HD 24031)

 
 
03h 49m 38.68s -02° 19' 42.5" P.A. 283.00 sep 0.4 mag 7.73,8.29 Sp G0 dist. 50.94 pc (166.17 l.y.)
 
 
Coord 2000 03496-0220 Discov num YR   23 Comp Coord arcsec 2000 03 49 38.68 -02 19 42.5
Date first 2000 Date last 2021 Obs 40
Pa first 10 Pa last 282.5 P.A. Now (θ) 282.5°
Sep first 0.3 Sep last 0.393 Sep. Now (ρ) 0.393"
Mag pri 7.73 Mag sec 8.29 delta mag (ΔM) 0.56 Spectral class G0 (yellow)
Pri motion ra -062 Sec motion ra
Pri motion dec -041 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 24031 Constellation Eridanus SAO 130752 HIP 17895
Tycho2 4717-00812-1 Gaia DR2 3250243512297702016 HD 24031 BD BD-02 726
Distance 50.94 Distance ly 166.17
 
 
ORBITAL ELEMENTS
 
 
Period (P)51.1y Periastron (T)1988.3y Semi-major axis (a)0.383a
Eccentricity (e)0.6 Inclination (i)121.1° Longitude of periastron (ω)286.5°
Node (Ω)68.6° Notesn ReferenceTok2018a
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 13.1 0.281
2001 7.7 0.282
2002 2.4 0.283
2003 357.1 0.285
2004 351.9 0.287
2005 346.7 0.291
2006 341.8 0.295
2007 336.9 0.300
2008 332.3 0.306
2009 327.8 0.312
2010 323.5 0.319
2011 319.4 0.327
2012 315.5 0.335
2013 311.8 0.343
2014 308.2 0.351
2015 304.9 0.359
2016 301.6 0.367
2017 298.5 0.375
2018 295.6 0.383
2019 292.7 0.390
2020 289.9 0.396
2021 287.2 0.401
2022 284.6 0.406
2023 282.0 0.410
2024 279.5 0.412
2025 277.0 0.413
2026 274.5 0.412
2027 272.0 0.409
2028 269.4 0.405
2029 266.7 0.398
2030 264.0 0.387


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


 
  


wds03496-0220b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic