10282-2548 FIN 308 AB

 
 
10h 28m 10.54s -25 48' 26.4" P.A. 182.00 sep 0.1 mag 9.14,9.68 Sp G3V dist. 89.13 pc (290.74 l.y.)
 
 
Coord 2000 10282-2548 Discov num FIN 308 Comp AB Coord arcsec 2000 10 28 10.54 -25 48 26.4
Date first 1936 Date last 2020 Obs 22
Pa first 68 Pa last 181.8 P.A. Now (θ) 195.6°
Sep first 0.2 Sep last 0.103 Sep. Now (ρ) 0.125"
Mag pri 9.14 Mag sec 9.68 delta mag (ΔM) 0.54 Spectral class G3V (yellow)
Pri motion ra -062 Sec motion ra
Pri motion dec +028 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
10282-2548 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 178853 10 28 11 -25 48 26 FIN 308 AB 2020 22 182 0.1 9.14 9.68 0.54 Y <===
Show HD 90737 178853 10 28 11 -25 48 26 B 199 AB,C 2020 24 174 1.2 8.56 12.41 3.85
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hydra SAO 178853 HIP 51255 Tycho2 6624-00602-1
Gaia DR2 5469406625417045760 HD 90737 ADS 7787 CD CD-25 8055
CP CP-25 4584 Distance 89.13 Distance ly 290.74
 
 
ORBITAL ELEMENTS
 
 
Period (P)32.76y± 2.67 Periastron (T)2018.13y± 1.28 Semi-major axis (a)0.144a± 0.033
Eccentricity (e)0.739± 0.135 Inclination (i)48.6°± 16.2 Longitude of periastron (ω)270.6°± 2.7
Node (Ω)155.4°± 4.5 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 239.8 0.165
2001 243.5 0.165
2002 247.2 0.166
2003 250.9 0.165
2004 254.7 0.165
2005 258.4 0.163
2006 262.3 0.162
2007 266.2 0.159
2008 270.3 0.156
2009 274.5 0.153
2010 279.0 0.148
2011 283.8 0.143
2012 289.0 0.136
2013 294.8 0.128
2014 301.5 0.118
2015 309.6 0.105
2016 320.6 0.087
2017 339.0 0.061
2018 45.6 0.026
2019 144.4 0.053
2020 167.4 0.081
2021 179.6 0.100
2022 188.5 0.114
2023 195.6 0.125
2024 201.7 0.133
2025 207.1 0.140
2026 212.1 0.146
2027 216.7 0.151
2028 221.1 0.154
2029 225.2 0.158
2030 229.2 0.160


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



 
 


wds10282-2548a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic