05427-6708 I 745 (HD 38746)

 
 
05h 42m 41.65s -67° 08' 19.5" P.A. 192.00 sep 0.1 mag 7.72,10.26 Sp F7V dist. 84.96 pc (277.14 l.y.)
 
 
Coord 2000 05427-6708 Discov num I   745 Comp Coord arcsec 2000 05 42 41.65 -67 08 19.5
Date first 1910 Date last 2021 Obs 9
Pa first 240 Pa last 192.2 P.A. Now (θ) 192.2°
Sep first 1.0 Sep last 0.052 Sep. Now (ρ) 0.052"
Mag pri 7.72 Mag sec 10.26 delta mag (ΔM) 2.54 Spectral class F7V (yellow-white)
Pri motion ra +032 Sec motion ra
Pri motion dec -039 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 38746 Constellation Dorado SAO 249339 HIP 26904
Tycho2 8891-03264-1 Gaia DR2 4659455198786053376 HD 38746 GC 7205
CP CP-67 496 Distance 84.96 Distance ly 277.14
 
 
ORBITAL ELEMENTS
 
 
Period (P)208y± 33 Periastron (T)2017.19y± 0.29 Semi-major axis (a)0.568a± 0.051
Eccentricity (e)0.775± 0.021 Inclination (i)72.1°± 1.4 Longitude of periastron (ω)205.8°± 2.4
Node (Ω)238.3°± 2.2 Notes ReferenceTok2019c
Equinox Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 293.7 0.158
2001 298.5 0.145
2002 304.1 0.133
2003 310.8 0.122
2004 318.8 0.113
2005 327.9 0.105
2006 338.2 0.101
2007 349.0 0.099
2008 359.9 0.101
2009 10.2 0.105
2010 19.5 0.111
2011 27.7 0.119
2012 34.9 0.127
2013 41.3 0.134
2014 47.1 0.138
2015 52.7 0.139
2016 58.5 0.133
2017 65.3 0.120
2018 74.3 0.099
2019 88.9 0.075
2020 115.8 0.055
2021 155.2 0.054
2022 184.6 0.072
2023 200.0 0.099
2024 208.6 0.128
2025 213.9 0.158
2026 217.6 0.187
2027 220.3 0.215
2028 222.4 0.242
2029 224.1 0.267
2030 225.5 0.292


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



 
 


wds05427-6708a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic