03025-1516 HJL 1114 (IR Eri)

 
 
03h 02m 32.62s -15° 16' 21.8" P.A. 200.00 sep 0.0 mag 8.45, Sp K0V dist. 50.56 pc (164.93 l.y.)
 
 
Coord 2000 03025-1516 Discov num HJL1114 Comp Coord arcsec 2000 03 02 32.62 -15 16 21.8
Date first 2014 Date last 2015 Obs 10
Pa first 198 Pa last 199.5 P.A. Now (θ) 199.5°
Sep first 0.0 Sep last 0.01 Sep. Now (ρ) 0.01"
Mag pri 8.45 Mag sec delta mag (ΔM) Spectral class K0V (yellow-orange)
Pri motion ra +103 Sec motion ra
Pri motion dec +049 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name IR Eri Constellation Eridanus SAO 148731 HIP 14157
Tycho2 5865-01069-1 Gaia DR2 5154084145316239744 HD 18955 BD BD-15 532
Distance 50.56 Distance ly 164.93
 
 
ORBITAL ELEMENTS
 
 
Period (P)43.32032d± 0.00013 Periastron (T)51487.5005m (1999.845y)± 0.0079 Semi-major axis (a)5.81m± 0.034
Eccentricity (e)0.7594± 0.001 Inclination (i)92.24°± 0.18 Longitude of periastron (ω)174.69°± 0.17
Node (Ω)19.141°± 0.082 Notesn ReferenceHJL2016
Equinox2000 Last observation2015 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 20.0 0.009
2001-01-01 18.5 0.008
2002-01-01 20.9 0.005
2003-01-01 19.0 0.010
2004-01-01 184.8
2005-01-01 19.5 0.010
2006-01-01 17.2 0.004
2007-01-01 19.9 0.009
2008-01-01 18.5 0.008
2009-01-01 20.7 0.006
2010-01-01 19.0 0.010
2011-01-01 30.5 0.001
2012-01-01 19.4 0.010
2013-01-01 16.7 0.003
2014-01-01 19.9 0.009
2015-01-01 18.4 0.008
2016-01-01 20.6 0.006
2017-01-01 18.9 0.010
2018-01-01 24.4 0.002
2019-01-01 19.4 0.010
2020-01-01 15.8 0.002
2021-01-01 19.8 0.009
2022-01-01 18.3 0.007
2023-01-01 20.4 0.007
2024-01-01 18.9 0.009
2025-01-01 22.8 0.002
2026-01-01 19.3 0.010
2027-01-01 13.7 0.001
2028-01-01 19.7 0.009
2029-01-01 18.1 0.007
2030-01-01 20.3 0.007


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



 
 


wds03025-1516a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic