22161-0705 HDS 3158 (HD 211276)

 
 
22h 16m 06.58s -07° 05' 26.6" P.A. 140.00 sep 0.4 mag 8.97,10.89 Sp G1.5+K1.5 dist. 62.15 pc (202.73 l.y.)
 
 
Coord 2000 22161-0705 Discov num HDS3158 Comp Coord arcsec 2000 22 16 06.58 -07 05 26.6
Date first 1991 Date last 2019 Obs 22
Pa first 333 Pa last 140.1 P.A. Now (θ) 140.1°
Sep first 0.2 Sep last 0.394 Sep. Now (ρ) 0.394"
Mag pri 8.97 Mag sec 10.89 delta mag (ΔM) 1.92 Spectral class G1.5+K1.5 (yellow/yellow-orange)
Pri motion ra +074 Sec motion ra
Pri motion dec -347 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 211276 Constellation Aquarius SAO 145984 HIP 109951
Tycho2 5231-00124-1 HD 211276 BD BD-07 5737 Distance 62.15
Distance ly 202.73
 
 
ORBITAL ELEMENTS
 
 
Period (P)50.49y± 4.32 Periastron (T)1989.88y± 0.16 Semi-major axis (a)0.2834a± 0.02
Eccentricity (e)0.451± 0.044 Inclination (i)17.7°± 13.6 Longitude of periastron (ω)45.2°± 9.6
Node (Ω)262°± 3 Notes ReferenceTok2018d
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 71.3 0.300
2001 76.4 0.315
2002 81.1 0.328
2003 85.5 0.341
2004 89.5 0.352
2005 93.3 0.362
2006 97.0 0.370
2007 100.5 0.378
2008 103.8 0.384
2009 107.1 0.390
2010 110.2 0.394
2011 113.3 0.398
2012 116.4 0.400
2013 119.4 0.402
2014 122.4 0.402
2015 125.4 0.402
2016 128.5 0.400
2017 131.5 0.398
2018 134.6 0.395
2019 137.8 0.391
2020 141.0 0.386
2021 144.3 0.380
2022 147.7 0.373
2023 151.3 0.366
2024 155.0 0.357
2025 158.9 0.348
2026 163.1 0.338
2027 167.5 0.327
2028 172.2 0.316
2029 177.2 0.303
2030 182.8 0.290


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



 
 


wds22161-0705d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic