16140-2815 RST 1883 (HD 145793)

 
 
16h 13m 58.13s -28° 15' 09.4" P.A. 321.00 sep 0.2 mag 8.15,10.22 Sp A2V dist. 155.52 pc (507.31 l.y.)
 
 
Coord 2000 16140-2815 Discov num RST1883 Comp Coord arcsec 2000 16 13 58.13 -28 15 09.4
Date first 1931 Date last 2019 Obs 12
Pa first 302 Pa last 321.3 P.A. Now (θ) 321.3°
Sep first 0.3 Sep last 0.152 Sep. Now (ρ) 0.152"
Mag pri 8.15 Mag sec 10.22 delta mag (ΔM) 2.07 Spectral class A2V (white)
Pri motion ra -012 Sec motion ra
Pri motion dec -024 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 145793 Constellation Scorpius SAO 184244 HIP 79552
Tycho2 6805-00043-1 Gaia DR2 6042157419335502080 HD 145793 CD CD-2710858
CP CP-27 5381 Distance 155.52 Distance ly 507.31
 
 
ORBITAL ELEMENTS
 
 
Period (P)104y Periastron (T)2006.8y Semi-major axis (a)0.219a
Eccentricity (e)0.779 Inclination (i)118.1° Longitude of periastron (ω)166°
Node (Ω)288.5° Notes ReferenceTok2019h
Equinox2000 Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 263.0 0.111
2001 258.3 0.093
2002 251.3 0.075
2003 239.6 0.056
2004 217.1 0.040
2005 176.1 0.032
2006 135.9 0.040
2007 110.9 0.049
2008 90.9 0.049
2009 69.2 0.046
2010 44.7 0.045
2011 21.8 0.049
2012 4.1 0.058
2013 351.7 0.069
2014 342.9 0.081
2015 336.6 0.094
2016 331.7 0.107
2017 327.9 0.120
2018 324.9 0.133
2019 322.3 0.145
2020 320.2 0.157
2021 318.3 0.168
2022 316.7 0.179
2023 315.2 0.190
2024 314.0 0.201
2025 312.8 0.211
2026 311.7 0.220
2027 310.8 0.229
2028 309.9 0.238
2029 309.0 0.247
2030 308.3 0.255


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



 
 


wds16140-2815a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic