10161-2837 TOK 199 (HD 89090)

 
 
10h 16m 04.07s -28° 36' 50.2" P.A. 229.00 sep 0.0 mag 7.70,8.20 Sp G1V dist. 55.56 pc (181.24 l.y.)
 
 
Coord 2000 10161-2837 Discov num TOK 199 Comp Coord arcsec 2000 10 16 04.07 -28 36 50.2
Date first 2011 Date last 2021 Obs 22
Pa first 249 Pa last 228.5 P.A. Now (θ) 228.5°
Sep first 0.0 Sep last 0.032 Sep. Now (ρ) 0.032"
Mag pri 7.70 Mag sec 8.20 delta mag (ΔM) 0.5 Spectral class G1V (yellow)
Pri motion ra -224 Sec motion ra
Pri motion dec +060 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 89090 Constellation Antlia SAO 178597 HIP 50288
Tycho2 6630-00988-1 Gaia DR2 5462643632473673344 HD 89090 GC 14097
CD CD-27 7328 CP CP-27 4117 Distance 55.56 Distance ly 181.24
 
 
ORBITAL ELEMENTS
 
 
Period (P)2.528y Periastron (T)2014.907y Semi-major axis (a)0.044a
Eccentricity (e)0.309 Inclination (i)115.5° Longitude of periastron (ω)58.6°
Node (Ω)95.7° Notes ReferenceTok2020g
Equinox2000 Last observation2019 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 307.2 0.024
2001 240.8 0.037
2002 99.6 0.035
2003 270.1 0.050
2004 167.2 0.023
2005 321.5 0.019
2006 245.1 0.039
2007 104.7 0.036
2008 272.7 0.049
2009 178.9 0.023
2010 345.1 0.015
2011 249.0 0.042
2012 109.7 0.035
2013 275.4 0.048
2014 190.6 0.024
2015 18.2 0.014
2016 252.4 0.044
2017 114.9 0.034
2018 278.3 0.046
2019 201.6 0.025
2020 47.3 0.016
2021 255.6 0.046
2022 120.6 0.033
2023 281.5 0.043
2024 211.4 0.026
2025 65.8 0.021
2026 258.5 0.047
2027 126.9 0.031
2028 285.1 0.040
2029 219.9 0.028
2030 77.4 0.026


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



 
 


wds10161-2837b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic