22500-3248 HDO 301 (HD 216042)

 
 
22h 49m 59.25s -32° 48' 19.4" P.A. 163.00 sep 0.2 mag 7.23,7.12 Sp F0V+F3V dist. 68.87 pc (224.65 l.y.)
 
 
Coord 2000 22500-3248 Discov num HDO 301 Comp Coord arcsec 2000 22 49 59.25 -32 48 19.4
Date first 1897 Date last 2021 Obs 73
Pa first 90 Pa last 162.5 P.A. Now (θ) 149.4°
Sep first 0.4 Sep last 0.215 Sep. Now (ρ) 0.24"
Mag pri 7.23 Mag sec 7.12 delta mag (ΔM) 0.11 Spectral class F0V+F3V (yellow-white/yellow-white)
Pri motion ra -026 Sec motion ra
Pri motion dec -025 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 216042 Constellation Piscis Austrinus SAO 214119 HIP 112746
Tycho2 7508-00062-1 Gaia DR2 6603602141330816128 HD 216042 HR 8680
GC 31840 CD CD-3316244 CP CP-33 6293 Distance 68.87
Distance ly 224.65
 
 
ORBITAL ELEMENTS
 
 
Period (P)26.46y± 0.04 Periastron (T)2015.07y± 0.04 Semi-major axis (a)0.184a± 0.001
Eccentricity (e)0.516± 0.003 Inclination (i)162.9°± 1.5 Longitude of periastron (ω)255.8°± 4.9
Node (Ω)194.6°± 5.2 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 129.2 0.265
2001 123.9 0.267
2002 118.6 0.267
2003 113.3 0.265
2004 107.8 0.261
2005 102.2 0.255
2006 96.2 0.247
2007 89.8 0.237
2008 82.7 0.225
2009 74.7 0.210
2010 65.4 0.192
2011 54.0 0.172
2012 39.4 0.149
2013 19.2 0.124
2014 348.7 0.100
2015 303.0 0.086
2016 254.4 0.095
2017 220.8 0.120
2018 199.4 0.147
2019 184.6 0.172
2020 173.3 0.193
2021 164.1 0.212
2022 156.3 0.227
2023 149.4 0.240
2024 143.1 0.250
2025 137.2 0.258
2026 131.7 0.263
2027 126.3 0.266
2028 121.0 0.267
2029 115.7 0.266
2030 110.4 0.264


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



 
 


wds22500-3248a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic