02399+0009 A 1928 (HD 16619)

02h 39m 51.75s +00° 08' 48.1" P.A. 244.00 sep 0.2 mag 8.60,8.60 Sp G0 dist. 70.22 pc (229.06 l.y.)

Coord 2000 02399+0009 Discov num A  1928 Comp Coord arcsec 2000 02 39 51.75 +00 08 48.1
Date first 1908 Date last 2019 Obs 70
Pa first 223 Pa last 243.6 P.A. Now (θ) 271.4°
Sep first 0.2 Sep last 0.208 Sep. Now (ρ) 0.138"
Mag pri 8.60 Mag sec 8.60 delta mag (ΔM) 0 Spectral class G0 (yellow)
Pri motion ra +062 Sec motion ra
Pri motion dec -178 Sec motion dec
Notes N O (See Notes, Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 16619 Constellation Cetus SAO 130042 HIP 12421
Tycho2 0046-01377-1 Gaia DR2 2498764556374263680 HD 16619 GC 3203
ADS 2028 BD BD-00 407 Distance 70.22 Distance ly 229.06




ORBITAL ELEMENTS

Period (P)17.92y± 0.2 Periastron (T)2009.17y± 0.3 Semi-major axis (a)0.138a± 0.001
Eccentricity (e)0.463± 0.003 Inclination (i)45.1°± 2 Longitude of periastron (ω)354.1°± 10
Node (Ω)58.9°± 6 Notesn ReferenceDoc2009g
Equinox2000 Last observation1999 Grade2(1=Definitive, 9=Indet.)

label theta rho
2000 233.5 0.201
2001 239.4 0.201
2002 245.5 0.195
2003 252.2 0.183
2004 260.1 0.165
2005 270.4 0.141
2006 285.6 0.112
2007 311.8 0.083
2008 357.4 0.067
2009 47.2 0.073
2010 91.0 0.073
2011 136.2 0.076
2012 170.3 0.095
2013 191.0 0.122
2014 204.2 0.148
2015 213.7 0.169
2016 221.4 0.185
2017 227.9 0.196
2018 234.0 0.201
2019 239.9 0.200
2020 246.0 0.194
2021 252.8 0.181
2022 260.8 0.163
2023 271.4 0.138
2024 287.1 0.109
2025 314.6 0.080
2026 1.6 0.067
2027 50.8 0.073
2028 94.7 0.073
2029 139.5 0.077
2030 172.4 0.097


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



 
 


wds02399%2B0009b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic