03025-1516 HJL1114 (IR Eri)

 
 
03H 02M 32.62S -15 16' 21.8" P.A. 200 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
200
P.A. Now (θ)
200°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
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
HD
18955
BD
BD-15 532
Distance
50.56
Distance ly
164.93
last precise pa
199.5
last precise sep
0.01
 
 
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 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000-01-01 0.009 20.0
2001-01-01 0.008 18.5
2002-01-01 0.005 20.9
2003-01-01 0.010 19.0
2004-01-01 184.8
2005-01-01 0.010 19.5
2006-01-01 0.004 17.2
2007-01-01 0.009 19.9
2008-01-01 0.008 18.5
2009-01-01 0.006 20.7
2010-01-01 0.010 19.0
2011-01-01 0.001 30.5
2012-01-01 0.010 19.4
2013-01-01 0.003 16.7
2014-01-01 0.009 19.9
2015-01-01 0.008 18.4
2016-01-01 0.006 20.6
2017-01-01 0.010 18.9
2018-01-01 0.002 24.4
2019-01-01 0.010 19.4
2020-01-01 0.002 15.8
2021-01-01 0.009 19.8
2022-01-01 0.007 18.3
2023-01-01 0.007 20.4
2024-01-01 0.009 18.9
2025-01-01 0.002 22.8
2026-01-01 0.010 19.3
2027-01-01 0.001 13.7
2028-01-01 0.009 19.7
2029-01-01 0.007 18.1
2030-01-01 0.007 20.3

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic