22234-4324 HDS 3173 (HD 212208)

 
 
22h 23m 24.44s -43° 24' 23.3" P.A. 335.00 sep 0.1 mag 9.07,10.02 Sp F5V dist. 118.06 pc (385.11 l.y.)
 
 
Coord 2000 22234-4324 Discov num HDS3173 Comp Coord arcsec 2000 22 23 24.44 -43 24 23.3
Date first 1991 Date last 2020 Obs 8
Pa first 154 Pa last 335 P.A. Now (θ) 335°
Sep first 0.2 Sep last 0.112 Sep. Now (ρ) 0.112"
Mag pri 9.07 Mag sec 10.02 delta mag (ΔM) 0.95 Spectral class F5V (yellow-white)
Pri motion ra +032 Sec motion ra
Pri motion dec -033 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 212208 Constellation Grus SAO 231117 HIP 110519
Tycho2 8002-00386-1 Gaia DR2 6568725082743888512 HD 212208 CD CD-4414888
CP CP-4410215 Distance 118.06 Distance ly 385.11
 
 
ORBITAL ELEMENTS
 
 
Period (P)82y Periastron (T)2016.32y Semi-major axis (a)0.171a
Eccentricity (e)0.327 Inclination (i)142.7° Longitude of periastron (ω)189°
Node (Ω)196.7° Notes ReferenceTok2020g
Equinox2000 Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 119.8 0.138
2001 114.5 0.133
2002 108.9 0.129
2003 103.0 0.126
2004 96.7 0.123
2005 90.2 0.120
2006 83.4 0.118
2007 76.5 0.117
2008 69.4 0.116
2009 62.2 0.116
2010 55.0 0.116
2011 47.8 0.116
2012 40.6 0.116
2013 33.5 0.116
2014 26.3 0.116
2015 19.1 0.116
2016 11.9 0.115
2017 4.5 0.114
2018 356.9 0.112
2019 349.2 0.111
2020 341.3 0.110
2021 333.1 0.108
2022 324.9 0.108
2023 316.6 0.108
2024 308.4 0.109
2025 300.3 0.110
2026 292.6 0.113
2027 285.2 0.116
2028 278.3 0.120
2029 271.9 0.125
2030 266.0 0.130


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



 
 


wds22234-4324a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic