09439-5738 HDS 1404 Aa,Ab

 
 
09h 43m 53.39s -57° 38' 12.4" P.A. 276.00 sep 0.1 mag 8.26,9.82 Sp F5V dist. 113.51 pc (370.27 l.y.)
 
 
Coord 2000 09439-5738 Discov num HDS1404 Comp Aa,Ab Coord arcsec 2000 09 43 53.39 -57 38 12.4
Date first 1991 Date last 2021 Obs 13
Pa first 356 Pa last 275.9 P.A. Now (θ) 295.4°
Sep first 0.2 Sep last 0.075 Sep. Now (ρ) 0.1"
Mag pri 8.26 Mag sec 9.82 delta mag (ΔM) 1.56 Spectral class F5V (yellow-white)
Pri motion ra -027 Sec motion ra
Pri motion dec +035 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
09439-5738 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 237274 09 43 53 -57 38 12 HDS 1404 Aa,Ab 2021 13 276 0.1 8.26 9.82 1.56 Y <===
Show HD 84534 237274 09 43 53 -57 38 12 HU 1468 AB 2015 7 199 4.5 8.26 11.80 3.54
Show 237274 09 43 53 -57 38 12 HU 1468 AC 2015 6 230 18.5 8.26 12.00 3.74
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Carina SAO 237274 HIP 47736 Tycho2 8593-01766-1
Gaia DR2 5306016826739365888 HD 84534 CP CP-57 2273 Distance 113.51
Distance ly 370.27
 
 
ORBITAL ELEMENTS
 
 
Period (P)22.24y± 1.16 Periastron (T)2019.578y± 0.023 Semi-major axis (a)0.115a± 0.006
Eccentricity (e)0.694± 0.012 Inclination (i)44°± 2.1 Longitude of periastron (ω)347.8°± 2.9
Node (Ω)160.9°± 3.8 Notes ReferenceTok2021f
Equinox Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 285.2 0.082
2001 297.9 0.106
2002 306.1 0.127
2003 312.1 0.145
2004 316.8 0.160
2005 320.8 0.172
2006 324.4 0.181
2007 327.6 0.188
2008 330.7 0.192
2009 333.7 0.193
2010 336.7 0.192
2011 339.7 0.188
2012 343.0 0.181
2013 346.6 0.170
2014 350.7 0.157
2015 355.8 0.140
2016 2.5 0.118
2017 12.7 0.091
2018 32.8 0.060
2019 93.8 0.033
2020 188.0 0.037
2021 251.6 0.051
2022 280.8 0.076
2023 295.4 0.100
2024 304.4 0.122
2025 310.8 0.141
2026 315.8 0.157
2027 319.9 0.169
2028 323.6 0.179
2029 326.9 0.187
2030 330.0 0.191


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



 
 


wds09439-5738b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic