21041+0359 TOK 371 (HD 200565)

 
 
21h 04m 05.69s +03° 58' 50.4" P.A. 272.00 sep 0.1 mag 8.42,9.00 Sp G5 dist. 65.75 pc (214.48 l.y.)
 
 
Coord 2000 21041+0359 Discov num TOK 371 Comp Coord arcsec 2000 21 04 05.69 +03 58 50.4
Date first 2012 Date last 2021 Obs 11
Pa first 110 Pa last 272.3 P.A. Now (θ) 272.3°
Sep first 0.1 Sep last 0.143 Sep. Now (ρ) 0.143"
Mag pri 8.42 Mag sec 9.00 delta mag (ΔM) 0.58 Spectral class G5 (yellow)
Pri motion ra -071 Sec motion ra
Pri motion dec -156 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 200565 Constellation Equuleus SAO 126508 HIP 103983
Tycho2 0534-00970-1 Gaia DR2 1732831875859320576 HD 200565 GC 29421
BD BD+03 4493 Distance 65.75 Distance ly 214.48
 
 
ORBITAL ELEMENTS
 
 
Period (P)13.3y Periastron (T)2011.21y Semi-major axis (a)0.104a
Eccentricity (e)0.29 Inclination (i)20.4° Longitude of periastron (ω)319.8°
Node (Ω)79.8° Notes ReferenceTok2018i
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 127.0 0.092
2001 154.9 0.103
2002 177.4 0.114
2003 196.1 0.123
2004 212.7 0.129
2005 228.1 0.131
2006 243.5 0.129
2007 260.0 0.122
2008 279.4 0.110
2009 304.8 0.093
2010 341.5 0.077
2011 30.7 0.071
2012 78.9 0.078
2013 117.2 0.088
2014 147.2 0.099
2015 171.1 0.110
2016 190.8 0.120
2017 207.9 0.127
2018 223.6 0.131
2019 238.9 0.130
2020 254.9 0.125
2021 273.2 0.114
2022 296.3 0.099
2023 329.0 0.082
2024 15.2 0.072
2025 65.3 0.075
2026 106.7 0.085
2027 138.9 0.096
2028 164.4 0.107
2029 185.2 0.117
2030 203.0 0.126


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



 
 


wds21041%2B0359a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic