00494-2313 PES 1

 
 
00h 49m 26.76s -23° 12' 44.9" P.A. 194.00 sep 0.6 mag 5.30,14.50 Sp G9V+L9 dist. 18.69 pc (60.97 l.y.)
 
 
Coord 2000 00494-2313 Discov num PES   1 Comp Coord arcsec 2000 00 49 26.76 -23 12 44.9
Date first 2008 Date last 2018 Obs 7
Pa first 156 Pa last 193.8 P.A. Now (θ) 193.8°
Sep first 0.6 Sep last 0.577 Sep. Now (ρ) 0.577"
Mag pri 5.30 Mag sec 14.50 delta mag (ΔM) 9.2 Spectral class G9V+L9 (yellow/very deep red)
Pri motion ra +518 Sec motion ra
Pri motion dec +124 Sec motion dec
Notes N O W (See Notes, Orbital solution, )
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cetus HIP 3850 Tycho2 6421-00822-1 HD 4747
GL Gl 36 CD CD-23 315 CP CP-23 95 Distance 18.69
Distance ly 60.97
 
 
ORBITAL ELEMENTS
 
 
Period (P)33.08y± 0.7 Periastron (T)50473.9d (1997.069y)± 5.2 Semi-major axis (a)0.5199a± 0.0512
Eccentricity (e)0.732± 0.0023 Inclination (i)46.3°± 1.1 Longitude of periastron (ω)266.9°± 0.47
Node (Ω)89.9°± 1.4 Notesn ReferencePes2019
Equinox Last observation2017 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 111.5 0.374
2001 120.1 0.428
2002 126.9 0.470
2003 132.8 0.504
2004 137.9 0.532
2005 142.6 0.554
2006 147.0 0.573
2007 151.1 0.588
2008 155.0 0.600
2009 158.8 0.609
2010 162.5 0.616
2011 166.1 0.621
2012 169.7 0.623
2013 173.2 0.624
2014 176.8 0.622
2015 180.4 0.619
2016 184.0 0.614
2017 187.8 0.607
2018 191.6 0.598
2019 195.5 0.586
2020 199.6 0.573
2021 204.0 0.557
2022 208.6 0.538
2023 213.6 0.516
2024 219.0 0.490
2025 225.2 0.459
2026 232.3 0.422
2027 241.0 0.375
2028 252.8 0.312
2029 272.2 0.223
2030 334.3 0.103


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


 
  


wds00494-2313a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic