16311-2405 REP 41

16h 31m 04.37s -24° 04' 33.3" P.A. 122.00 sep 13.1 mag 12.35,14.30 Sp Ke

Coord 2000 16311-2405 Discov num REP  41 Comp Coord arcsec 2000 16 31 04.37 -24 04 33.3
Date first 1989 Date last 2015 Obs 6
Pa first 122 Pa last 122.4 P.A. Now (θ) 122.4°
Sep first 12.9 Sep last 13.056 Sep. Now (ρ) 13.056"
Mag pri 12.35 Mag sec 14.30 delta mag (ΔM) 1.95 Spectral class Ke (yellow-orange)
Pri motion ra -008 Sec motion ra +002
Pri motion dec -018 Sec motion dec -029
Notes N (See Notes)




rPM=0.511

Nature of this double is uncertain.



OTHER CATALOGS AND DESIGNATIONS

Constellation Ophiuchus Gaia DR2 6050627747672189312








SUSPECTED ORBITAL ELEMENTS



Identifier16311-2405
coord_arcsec_2000163104.36-240433.3
Period (P)592.19d± 0.09 Periastron (T)53656.22m (2005.783y)± 0.72 Semi-major axis (a)15.4m± 1.5
Eccentricity (e)0.617± 0.006 Inclination (i)86.9°± 1.2 Longitude of periastron (ω)233.56°± 0.56
Node (Ω)263.5°± 7.1 Notesn ReferenceLeB2014
Equinox Last observation2013 Grade8(1=Definitive, 9=Indet.)

label theta rho
2000-01-01 266.7 0.017
2001-01-01 259.7 0.005
2002-01-01 273.3 0.007
2003-01-01 265.1 0.019
2004-01-01 79.0 0.007
2005-01-01 268.0 0.014
2006-01-01 263.3 0.014
2007-01-01 294.1 0.002
2008-01-01 266.0 0.018
2009-01-01 84.9 0.006
2010-01-01 270.0 0.010
2011-01-01 264.4 0.018
2012-01-01 68.9 0.003
2013-01-01 267.0 0.016
2014-01-01 261.3 0.008
2015-01-01 274.9 0.006
2016-01-01 265.3 0.019
2017-01-01 80.3 0.007
2018-01-01 268.3 0.013
2019-01-01 263.6 0.015
2020-01-01 318.5 0.001
2021-01-01 266.2 0.018
2022-01-01 88.4 0.003
2023-01-01 270.7 0.009
2024-01-01 264.6 0.018
2025-01-01 73.3 0.004
2026-01-01 267.2 0.016
2027-01-01 262.1 0.010
2028-01-01 277.2 0.005
2029-01-01 265.5 0.019
2030-01-01 81.4 0.008


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



 
 


wds16311-2405s.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic