04340-5503 B 2092 AB

 
 
04h 33m 59.72s -55° 02' 42.0" P.A. 212.00 sep 0.1 mag 3.62,4.57 Sp A0IIIs dist. 51.71 pc (168.68 l.y.)
 
 
Coord 2000 04340-5503 Discov num B  2092 Comp AB Coord arcsec 2000 04 33 59.72 -55 02 42.0
Date first 1956 Date last 2021 Obs 39
Pa first 154 Pa last 212.2 P.A. Now (θ) 284.2°
Sep first 0.3 Sep last 0.106 Sep. Now (ρ) 0.058"
Mag pri 3.62 Mag sec 4.57 delta mag (ΔM) 0.95 Spectral class A0IIIs (white)
Pri motion ra +051 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
04340-5503 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 233564 04 33 60 -55 02 42 B 2092 AB 2021 39 212 0.1 3.62 4.57 0.95 Y <===
Show Alp Dor 233564 04 33 60 -55 02 42 HJ 3668 AB,C 1999 9 94 77.2 3.24 10.20 6.96
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Dorado SAO 233564 HIP 21281 Tycho2 8512-02115-1
HD 29305 HR 1465 GC 5600 CP CP-55 663
Bayer Alpha Doradus Bayer name Alp Dor FK5 171 Distance 51.71
Distance ly 168.68 Bayer greek α Dor
 
 
ORBITAL ELEMENTS
 
 
Period (P)12.11y Periastron (T)1986.9y Semi-major axis (a)0.201a
Eccentricity (e)0.777 Inclination (i)46° Longitude of periastron (ω)40°
Node (Ω)304.9° Notesn ReferenceHrt2010a
Equinox2000 Last observation2008 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 116.3 0.150
2001 130.7 0.234
2002 138.5 0.283
2003 144.4 0.310
2004 149.7 0.321
2005 154.8 0.317
2006 160.3 0.301
2007 166.6 0.273
2008 174.8 0.233
2009 187.2 0.180
2010 212.5 0.115
2011 303.7 0.050
2012 113.5 0.138
2013 129.6 0.227
2014 137.8 0.279
2015 143.8 0.308
2016 149.1 0.320
2017 154.2 0.318
2018 159.6 0.304
2019 165.8 0.277
2020 173.7 0.238
2021 185.5 0.186
2022 208.3 0.122
2023 284.2 0.058
2024 110.2 0.124
2025 128.4 0.219
2026 137.0 0.274
2027 143.2 0.306
2028 148.5 0.320
2029 153.7 0.319
2030 159.0 0.306


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



 
 


wds04340-5503a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic