16073-3645 HJ 4831 (HD 144415)

 
 
16h 07m 16.17s -36° 45' 19.9" P.A. 358.00 sep 40.4 mag 5.74,11.84 Sp F1IV dist. 54.79 pc (178.72 l.y.)
 
 
Coord 2000 16073-3645 Discov num HJ 4831 Comp Coord arcsec 2000 16 07 16.17 -36 45 19.9
Date first 1834 Date last 2015 Obs 13
Pa first 359 Pa last 357.7 P.A. Now (θ) 357.7°
Sep first 40.0 Sep last 40.445 Sep. Now (ρ) 40.445"
Mag pri 5.74 Mag sec 11.84 delta mag (ΔM) 6.1 Spectral class F1IV (yellow-white)
Pri motion ra +047 Sec motion ra +029
Pri motion dec -065 Sec motion dec -038
Notes
rPM=0.405
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 144415 Constellation Lupus SAO 207341 HIP 78970
Tycho2 7342-01314-1 Gaia DR2 5998675582756950272 HD 144415 HR 5991
GC 21647 CD CD-3610648 CP CP-36 6938 Distance 54.79
Distance ly 178.72
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier16073-3645 HJ 4831 A
coord_arcsec_2000160716.17-364519.9
Period (P)919d (2.52y)± 40 Periastron (T)49141d (1993.419y)± 412 Semi-major axis (a)11m± 1.1
Eccentricity (e)0.09± 0.16 Inclination (i)61°± 7 Longitude of periastron (ω)113°± 73
Node (Ω)55°± 95 Notes ReferenceGln2007
Equinox Last observation1991 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 38.3 0.010
2001-01-01 193.4 0.006
2002-01-01 316.3 0.006
2003-01-01 73.0 0.009
2004-01-01 243.5 0.010
2005-01-01 35.8 0.010
2006-01-01 186.3 0.006
2007-01-01 308.4 0.006
2008-01-01 70.1 0.010
2009-01-01 241.0 0.011
2010-01-01 33.1 0.010
2011-01-01 178.0 0.006
2012-01-01 300.9 0.006
2013-01-01 67.3 0.010
2014-01-01 238.6 0.011
2015-01-01 30.2 0.009
2016-01-01 168.6 0.005
2017-01-01 294.0 0.006
2018-01-01 64.8 0.010
2019-01-01 236.2 0.011
2020-01-01 27.1 0.009
2021-01-01 158.1 0.005
2022-01-01 287.7 0.007
2023-01-01 62.4 0.011
2024-01-01 233.8 0.010
2025-01-01 23.7 0.009
2026-01-01 146.9 0.005
2027-01-01 281.9 0.007
2028-01-01 60.1 0.011
2029-01-01 231.3 0.010
2030-01-01 20.0 0.008


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



 
 


wds16073-3645r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic