10227-2350 B 197 (HD 89983)

 
 
10h 22m 41.60s -23° 49' 55.3" P.A. 134.00 sep 0.3 mag 9.20,9.80 Sp G6/K0
 
 
Coord 2000 10227-2350 Discov num B   197 Comp Coord arcsec 2000 10 22 41.60 -23 49 55.3
Date first 1926 Date last 2022 Obs 11
Pa first 174 Pa last 133.7 P.A. Now (θ) 133.7°
Sep first 0.3 Sep last 0.269 Sep. Now (ρ) 0.269"
Mag pri 9.20 Mag sec 9.80 delta mag (ΔM) 0.6 Spectral class G6/K0 (yellow)
Pri motion ra +007 Sec motion ra
Pri motion dec +007 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 89983 Constellation Hydra SAO 178747 Tycho2 6619-01252-1
Gaia DR2 5472960109558582656 HD 89983 ADS 7746
 
 
ORBITAL ELEMENTS
 
 
Period (P)171.5y± 18.3 Periastron (T)1986.73y± 0.77 Semi-major axis (a)0.2164a± 0.0101
Eccentricity (e)0.6839± 0.0251 Inclination (i)20°± 0 Longitude of periastron (ω)212.6°± 43.3
Node (Ω)134.3°± 41.2 Notes ReferenceTok2024a
Equinox2000 Last observation2022 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 97.7 0.145
2001 100.8 0.152
2002 103.6 0.159
2003 106.1 0.166
2004 108.4 0.173
2005 110.6 0.180
2006 112.6 0.186
2007 114.5 0.193
2008 116.3 0.199
2009 117.9 0.205
2010 119.5 0.210
2011 121.0 0.216
2012 122.4 0.221
2013 123.7 0.227
2014 125.0 0.232
2015 126.2 0.237
2016 127.4 0.242
2017 128.5 0.247
2018 129.6 0.251
2019 130.7 0.256
2020 131.7 0.260
2021 132.7 0.265
2022 133.6 0.269
2023 134.5 0.273
2024 135.4 0.277
2025 136.3 0.280
2026 137.1 0.284
2027 138.0 0.288
2028 138.8 0.291
2029 139.5 0.295
2030 140.3 0.298
2031 141.1 0.301
2032 141.8 0.304
2033 142.5 0.307
2034 143.2 0.310
2035 143.9 0.313
2036 144.6 0.315
2037 145.3 0.318
2038 145.9 0.321
2039 146.6 0.323
2040 147.2 0.325
2041 147.9 0.328
2042 148.5 0.330
2043 149.1 0.332
2044 149.7 0.334
2045 150.3 0.336
2046 150.9 0.338
2047 151.5 0.339
2048 152.1 0.341
2049 152.7 0.343
2050 153.2 0.344


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds10227-2350a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic