00321-1218 HDS 71 (HD 2893)

 
 
00h 32m 07.04s -12 17' 42.1" P.A. 282.00 sep 0.3 mag 8.97,9.46 Sp G1V dist. 69.11 pc (225.44 l.y.)
 
 
Coord 2000 00321-1218 Discov num HDS  71 Comp Coord arcsec 2000 00 32 07.04 -12 17 42.1
Date first 1991 Date last 2021 Obs 19
Pa first 23 Pa last 281.9 P.A. Now (θ) 281.9°
Sep first 0.1 Sep last 0.254 Sep. Now (ρ) 0.254"
Mag pri 8.97 Mag sec 9.46 delta mag (ΔM) 0.49 Spectral class G1V (yellow)
Pri motion ra +049 Sec motion ra
Pri motion dec -027 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 2893 Constellation Cetus SAO 147326 HIP 2532
Tycho2 5271-00803-1 HD 2893 BD BD-13 89 Distance 69.11
Distance ly 225.44
 
 
ORBITAL ELEMENTS
 
 
Period (P)57.943y± 1.966 Periastron (T)2034.432y± 0.95 Semi-major axis (a)0.2666a± 0.0038
Eccentricity (e)0.233± 0.096 Inclination (i)132.3°± 7.9 Longitude of periastron (ω)325.3°± 21
Node (Ω)126.6°± 9.7 Notes ReferenceCve2014
Equinox2000 Last observation2008 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 352.3 0.253
2001 348.0 0.262
2002 343.9 0.271
2003 340.1 0.280
2004 336.5 0.288
2005 333.1 0.295
2006 329.9 0.301
2007 326.7 0.307
2008 323.7 0.311
2009 320.8 0.315
2010 317.9 0.317
2011 315.0 0.317
2012 312.1 0.317
2013 309.2 0.315
2014 306.3 0.311
2015 303.2 0.307
2016 300.1 0.300
2017 296.8 0.292
2018 293.3 0.283
2019 289.6 0.273
2020 285.5 0.261
2021 281.0 0.247
2022 276.0 0.233
2023 270.4 0.218
2024 263.9 0.203
2025 256.3 0.188
2026 247.5 0.174
2027 237.3 0.163
2028 225.7 0.154
2029 213.0 0.149
2030 199.9 0.149


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



 
 


wds00321-1218a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic