22479-5705 B 2059 (HD 215659)

 
 
22h 47m 51.28s -57° 05' 26.4" P.A. 78.00 sep 0.2 mag 9.61,9.85 Sp G0V dist. 225.23 pc (734.7 l.y.)
 
 
Coord 2000 22479-5705 Discov num B  2059 Comp Coord arcsec 2000 22 47 51.28 -57 05 26.4
Date first 1930 Date last 2019 Obs 12
Pa first 280 Pa last 77.6 P.A. Now (θ) 75.3°
Sep first 0.2 Sep last 0.17 Sep. Now (ρ) 0.195"
Mag pri 9.61 Mag sec 9.85 delta mag (ΔM) 0.24 Spectral class G0V (yellow)
Pri motion ra +069 Sec motion ra
Pri motion dec -049 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 215659 Constellation Tucana SAO 247585 HIP 112561
Tycho2 8826-00070-1 Gaia DR2 6504029161433116544 HD 215659 CP CP-5710143
Distance 225.23 Distance ly 734.7
 
 
ORBITAL ELEMENTS
 
 
Period (P)43.17y± 2.82 Periastron (T)2007y± 2.7 Semi-major axis (a)0.125a± 0.007
Eccentricity (e)0.7± 0 Inclination (i)102.1°± 3.7 Longitude of periastron (ω)176°± 4.7
Node (Ω)71.9°± 4.4 Notesn ReferenceTok2020e
Equinox Last observation2019 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 63.2 0.112
2001 61.4 0.095
2002 58.7 0.077
2003 54.2 0.056
2004 43.9 0.034
2005 357.3 0.014
2006 272.7 0.024
2007 252.7 0.037
2008 236.3 0.029
2009 183.3 0.014
2010 113.0 0.025
2011 95.8 0.045
2012 89.2 0.065
2013 85.7 0.084
2014 83.4 0.101
2015 81.7 0.116
2016 80.4 0.130
2017 79.4 0.143
2018 78.5 0.154
2019 77.7 0.164
2020 77.0 0.174
2021 76.4 0.182
2022 75.8 0.189
2023 75.3 0.195
2024 74.8 0.200
2025 74.3 0.204
2026 73.9 0.208
2027 73.4 0.210
2028 73.0 0.212
2029 72.6 0.212
2030 72.1 0.212


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



 
 


wds22479-5705a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic