00366+5609 A 914 (HD 3304)

 
 
00h 36m 33.43s +56 08' 32.0" P.A. 19.00 sep 0.4 mag 8.42,9.29 Sp F5 dist. 209.64 pc (683.85 l.y.)
 
 
Coord 2000 00366+5609 Discov num A   914 Comp Coord arcsec 2000 00 36 33.43 +56 08 32.0
Date first 1905 Date last 2019 Obs 36
Pa first 77 Pa last 19 P.A. Now (θ) 19°
Sep first 0.3 Sep last 0.43 Sep. Now (ρ) 0.43"
Mag pri 8.42 Mag sec 9.29 delta mag (ΔM) 0.87 Spectral class F5 (yellow-white)
Pri motion ra -031 Sec motion ra -031
Pri motion dec -005 Sec motion dec -005
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 3304 Constellation Cassiopeia SAO 21557 HIP 2886
Tycho2 3658-00454-1 HD 3304 ADS 504 BD BD+55 117
Distance 209.64 Distance ly 683.85
 
 
ORBITAL ELEMENTS
 
 
Period (P)1240.2y± 79.4 Periastron (T)2015.1y± 80.1 Semi-major axis (a)0.88a± 0.084
Eccentricity (e)0.477± 0.043 Inclination (i)109.4°± 2.1 Longitude of periastron (ω)4.4°± 3.3
Node (Ω)24.7°± 2.9 Notes ReferenceCve2010e
Equinox2000 Last observation2005 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 27.9 0.459
2001 27.6 0.459
2002 27.3 0.460
2003 27.0 0.460
2004 26.7 0.460
2005 26.4 0.461
2006 26.1 0.461
2007 25.7 0.461
2008 25.4 0.461
2009 25.1 0.461
2010 24.8 0.461
2011 24.5 0.461
2012 24.2 0.460
2013 23.9 0.460
2014 23.6 0.460
2015 23.3 0.459
2016 23.0 0.459
2017 22.6 0.458
2018 22.3 0.457
2019 22.0 0.457
2020 21.7 0.456
2021 21.4 0.455
2022 21.1 0.454
2023 20.7 0.453
2024 20.4 0.452
2025 20.1 0.451
2026 19.8 0.449
2027 19.5 0.448
2028 19.1 0.447
2029 18.8 0.445
2030 18.5 0.444


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



 
 


wds00366%2B5609b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic