10479-6416 HDS 1544 (HD 93738)

 
 
10h 47m 53.55s -64° 15' 46.3" P.A. 153.00 sep 0.2 mag 6.74,8.10 Sp B9.5V dist. 145.35 pc (474.13 l.y.)
 
 
Coord 2000 10479-6416 Discov num HDS1544 Comp Coord arcsec 2000 10 47 53.55 -64 15 46.3
Date first 1991 Date last 2021 Obs 8
Pa first 22 Pa last 152.5 P.A. Now (θ) 152.5°
Sep first 0.1 Sep last 0.157 Sep. Now (ρ) 0.157"
Mag pri 6.74 Mag sec 8.10 delta mag (ΔM) 1.36 Spectral class B9.5V (blue-white)
Pri motion ra -015 Sec motion ra
Pri motion dec +010 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 93738 Constellation Carina SAO 251128 HIP 52815
Tycho2 8965-01383-1 Gaia DR2 5239656077327422336 HD 93738 GC 14874
CP CP-63 1672 Distance 145.35 Distance ly 474.13
 
 
ORBITAL ELEMENTS
 
 
Period (P)78y Periastron (T)2003.8y Semi-major axis (a)0.224a
Eccentricity (e)0.319 Inclination (i)127.5° Longitude of periastron (ω)175°
Node (Ω)96.3° Notes ReferenceTok2019c
Equinox Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 303.2 0.137
2001 296.4 0.143
2002 290.0 0.147
2003 284.0 0.151
2004 278.2 0.152
2005 272.5 0.153
2006 266.7 0.151
2007 260.8 0.149
2008 254.6 0.145
2009 248.0 0.140
2010 241.0 0.135
2011 233.4 0.131
2012 225.4 0.127
2013 216.8 0.124
2014 208.0 0.122
2015 199.1 0.122
2016 190.3 0.124
2017 181.9 0.128
2018 174.0 0.133
2019 166.9 0.140
2020 160.4 0.148
2021 154.6 0.156
2022 149.5 0.165
2023 144.8 0.174
2024 140.7 0.184
2025 136.9 0.193
2026 133.5 0.203
2027 130.4 0.212
2028 127.5 0.221
2029 124.9 0.229
2030 122.4 0.237


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


 
  


wds10479-6416a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic