04218+1929 SIG 1

 
 
04h 21m 49.56s +19° 29' 08.6" P.A. 75.00 sep 0.2 mag 13.10,13.90 Sp M7+M9.5
 
 
Coord 2000 04218+1929 Discov num SIG   1 Comp Coord arcsec 2000 04 21 49.56 +19 29 08.6
Date first 2002 Date last 2012 Obs 20
Pa first 91 Pa last 75.3 P.A. Now (θ) 68.5°
Sep first 0.1 Sep last 0.159 Sep. Now (ρ) 0.138"
Mag pri 13.10 Mag sec 13.90 delta mag (ΔM) 0.8 Spectral class M7+M9.5 (red/red)
Pri motion ra +116 Sec motion ra
Pri motion dec -038 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus Gaia DR2 48190739948429184
 
 
ORBITAL ELEMENTS
 
 
Period (P)14.82y± 0.24 Periastron (T)58880m (2020.085y)± 140 Semi-major axis (a)0.0965a± 0.0014
Eccentricity (e)0.706± 0.012 Inclination (i)62.4°± 1.6 Longitude of periastron (ω)168°± 4
Node (Ω)82.1°± 1.1 Notesn ReferenceDup2017
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 82.7 0.155
2001 86.0 0.142
2002 90.3 0.122
2003 96.8 0.093
2004 111.8 0.052
2005 223.7 0.021
2006 334.8 0.024
2007 40.0 0.054
2008 55.6 0.087
2009 63.0 0.114
2010 67.8 0.135
2011 71.4 0.150
2012 74.5 0.159
2013 77.4 0.162
2014 80.2 0.161
2015 83.2 0.153
2016 86.7 0.139
2017 91.2 0.117
2018 98.4 0.086
2019 117.8 0.043
2020 247.9 0.026
2021 355.5 0.027
2022 44.1 0.060
2023 57.3 0.093
2024 64.0 0.118
2025 68.5 0.138
2026 72.0 0.152
2027 75.1 0.160
2028 77.9 0.163
2029 80.7 0.160
2030 83.8 0.151
2031 87.4 0.136
2032 92.2 0.112
2033 100.4 0.079
2034 126.8 0.034
2035 265.2 0.029
2036 11.4 0.031
2037 47.5 0.066
2038 58.7 0.098
2039 64.9 0.122
2040 69.2 0.141
2041 72.6 0.153
2042 75.6 0.161
2043 78.4 0.162
2044 81.3 0.159
2045 84.4 0.149
2046 88.2 0.132
2047 93.3 0.107
2048 102.7 0.072
2049 141.8 0.026
2050 281.5 0.028


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds04218%2B1929c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic