00026-0829 A 428 (HD 225015)

 
 
00h 02m 38.92s -08 29' 16.6" P.A. 295.00 sep 0.1 mag 9.82,10.07 Sp G0 dist. 134.77 pc (439.62 l.y.)
 
 
Coord 2000 00026-0829 Discov num A   428 Comp Coord arcsec 2000 00 02 38.92 -08 29 16.6
Date first 1902 Date last 2018 Obs 44
Pa first 111 Pa last 294.6 P.A. Now (θ) 294.6°
Sep first 0.2 Sep last 0.111 Sep. Now (ρ) 0.111"
Mag pri 9.82 Mag sec 10.07 delta mag (ΔM) 0.25 Spectral class G0 (yellow)
Pri motion ra +000 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 225015 Constellation Cetus SAO 128549 HIP 210
Tycho2 5260-00354-1 Gaia DR2 2441125824679584896 HD 225015 ADS 4
BD BD-09 6310 Distance 134.77 Distance ly 439.62
 
 
ORBITAL ELEMENTS
 
 
Period (P)414.95y± 20.96 Periastron (T)2005.35y± 2.47 Semi-major axis (a)0.505a± 0.021
Eccentricity (e)0.503± 0.013 Inclination (i)111.9°± 1.2 Longitude of periastron (ω)226.8°± 4.2
Node (Ω)192.2°± 2 Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 359.7 0.224
2001 358.2 0.217
2002 356.7 0.210
2003 355.0 0.203
2004 353.2 0.195
2005 351.3 0.188
2006 349.1 0.180
2007 346.8 0.172
2008 344.3 0.164
2009 341.5 0.156
2010 338.5 0.149
2011 335.1 0.141
2012 331.3 0.134
2013 327.1 0.127
2014 322.5 0.121
2015 317.3 0.115
2016 311.8 0.111
2017 305.7 0.107
2018 299.3 0.104
2019 292.6 0.103
2020 285.8 0.103
2021 279.1 0.104
2022 272.6 0.106
2023 266.4 0.109
2024 260.7 0.114
2025 255.5 0.119
2026 250.7 0.126
2027 246.4 0.132
2028 242.6 0.140
2029 239.1 0.148
2030 236.0 0.156


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



 
 


wds00026-0829b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic