03379+0538 YSC 27 (HD 22556)

03h 37m 52.46s +05° 38' 28.7" P.A. 171.00 sep 0.1 mag 8.00,9.50 Sp F8 dist. 194.93 pc (635.86 l.y.)

Coord 2000 03379+0538 Discov num YSC  27 Comp Coord arcsec 2000 03 37 52.46 +05 38 28.7
Date first 2007 Date last 2021 Obs 20
Pa first 134 Pa last 171.3 P.A. Now (θ) 142.7°
Sep first 0.1 Sep last 0.1 Sep. Now (ρ) 0.115"
Mag pri 8.00 Mag sec 9.50 delta mag (ΔM) 1.5 Spectral class F8 (yellow-white)
Pri motion ra -031 Sec motion ra
Pri motion dec +017 Sec motion dec
Notes O (Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 22556 Constellation Taurus SAO 111305 HIP 16390
Tycho2 0070-01024-1 Gaia DR2 3275207442770459904 HD 22556 BD BD+05 521
Distance 194.93 Distance ly 635.86




ORBITAL ELEMENTS

Period (P)16.51y± 0.2 Periastron (T)2013.02y± 0.06 Semi-major axis (a)0.1399a± 0.0015
Eccentricity (e)0.222± 0.012 Inclination (i)123.5°± 0.7 Longitude of periastron (ω)94.7°± 1.7
Node (Ω)98.6°± 1.1 Notes ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)

label theta rho
2000 269.4 0.135
2001 256.6 0.131
2002 241.9 0.119
2003 223.3 0.104
2004 199.8 0.095
2005 174.2 0.096
2006 151.8 0.107
2007 134.3 0.123
2008 120.6 0.135
2009 108.7 0.141
2010 96.6 0.133
2011 81.5 0.111
2012 55.3 0.078
2013 1.4 0.060
2014 313.4 0.085
2015 290.5 0.116
2016 275.9 0.133
2017 263.2 0.135
2018 249.8 0.125
2019 233.4 0.111
2020 212.3 0.099
2021 187.2 0.094
2022 162.6 0.101
2023 142.7 0.115
2024 127.3 0.130
2025 114.6 0.139
2026 102.9 0.139
2027 89.9 0.124
2028 71.0 0.096
2029 32.6 0.064
2030 333.6 0.069


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



 
 


wds03379%2B0538b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic