16263-0943 RST 3945 (HD 148131)

 
 
16h 26m 19.21s -09° 43' 25.4" P.A. 11.00 sep 0.3 mag 9.70,9.70 Sp G0
 
 
Coord 2000 16263-0943 Discov num RST3945 Comp Coord arcsec 2000 16 26 19.21 -09 43 25.4
Date first 1938 Date last 2018 Obs 14
Pa first 191 Pa last 10.5 P.A. Now (θ) 10.5°
Sep first 0.2 Sep last 0.278 Sep. Now (ρ) 0.278"
Mag pri 9.70 Mag sec 9.70 delta mag (ΔM) 0 Spectral class G0 (yellow)
Pri motion ra +064 Sec motion ra
Pri motion dec -057 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 148131 Constellation Ophiuchus SAO 141173 Tycho2 5630-00023-1
HD 148131
 
 
ORBITAL ELEMENTS
 
 
Period (P)132.3y Periastron (T)1921.19y Semi-major axis (a)0.355a
Eccentricity (e)0.161 Inclination (i)53.1° Longitude of periastron (ω)58.4°
Node (Ω)51.2° Notes ReferenceTok2020g
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 311.2 0.245
2001 314.6 0.243
2002 318.0 0.242
2003 321.5 0.241
2004 325.1 0.240
2005 328.6 0.240
2006 332.1 0.240
2007 335.6 0.241
2008 339.1 0.243
2009 342.5 0.245
2010 345.8 0.247
2011 349.1 0.250
2012 352.3 0.253
2013 355.5 0.257
2014 358.5 0.261
2015 1.4 0.265
2016 4.3 0.269
2017 7.1 0.273
2018 9.7 0.278
2019 12.3 0.282
2020 14.8 0.287
2021 17.3 0.291
2022 19.6 0.295
2023 21.9 0.299
2024 24.2 0.303
2025 26.4 0.307
2026 28.5 0.310
2027 30.6 0.313
2028 32.6 0.316
2029 34.7 0.319
2030 36.6 0.321


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


 
  


wds16263-0943b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic