15406+3128 COU 613 (HD 140065)

 
 
15h 40m 33.18s +31° 28' 19.8" P.A. 25.00 sep 0.2 mag 9.11,10.18 Sp G5 dist. 337.84 pc (1102.03 l.y.)
 
 
Coord 2000 15406+3128 Discov num COU 613 Comp Coord arcsec 2000 15 40 33.18 +31 28 19.8
Date first 1971 Date last 2014 Obs 20
Pa first 329 Pa last 25 P.A. Now (θ) 25°
Sep first 0.3 Sep last 0.17 Sep. Now (ρ) 0.17"
Mag pri 9.11 Mag sec 10.18 delta mag (ΔM) 1.07 Spectral class G5 (yellow)
Pri motion ra -066 Sec motion ra
Pri motion dec +050 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 140065 Constellation Corona Borealis SAO 64839 HIP 76777
Tycho2 2571-01243-1 Gaia DR2 1369473931766893056 HD 140065 BD BD+31 2762
Distance 337.84 Distance ly 1102.03
 
 
ORBITAL ELEMENTS
 
 
Period (P)452y± 99.6 Periastron (T)1960y± 3.2 Semi-major axis (a)0.49a± 0.065
Eccentricity (e)0.503± 0.044 Inclination (i)73.1°± 0.5 Longitude of periastron (ω)147.9°± 7.9
Node (Ω)152.5°± 0.9 Notes ReferenceBAE2021
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 353.6 0.226
2001 354.5 0.223
2002 355.5 0.220
2003 356.5 0.217
2004 357.6 0.214
2005 358.6 0.211
2006 359.7 0.207
2007 0.9 0.204
2008 2.0 0.201
2009 3.3 0.197
2010 4.5 0.194
2011 5.8 0.191
2012 7.1 0.188
2013 8.5 0.185
2014 10.0 0.181
2015 11.4 0.178
2016 13.0 0.175
2017 14.6 0.173
2018 16.2 0.170
2019 17.9 0.167
2020 19.7 0.164
2021 21.5 0.162
2022 23.3 0.159
2023 25.3 0.157
2024 27.2 0.155
2025 29.3 0.153
2026 31.3 0.151
2027 33.5 0.149
2028 35.6 0.148
2029 37.9 0.147
2030 40.1 0.146
2031 42.4 0.145
2032 44.7 0.144
2033 47.0 0.143
2034 49.4 0.143
2035 51.7 0.143
2036 54.1 0.143
2037 56.4 0.143
2038 58.7 0.144
2039 61.1 0.145
2040 63.3 0.146
2041 65.6 0.147
2042 67.8 0.148
2043 70.0 0.150
2044 72.1 0.151
2045 74.2 0.153
2046 76.2 0.155
2047 78.1 0.158
2048 80.1 0.160
2049 81.9 0.162
2050 83.7 0.165


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds15406%2B3128a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic