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 |
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Discov num |
HJL1114 |
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Comp |
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Coord arcsec 2000 |
03 02 32.62 -15 16 21.8 |
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Date first |
2014 |
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Date last |
2015 |
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Obs |
10 |
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Pa first |
198 |
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Pa last |
199.5 |
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P.A. Now (θ) |
199.5° |
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Sep first |
0.0 |
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Sep last |
0.01 |
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Sep. Now (ρ) |
0.01" |
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Mag pri |
8.45 |
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Mag sec |
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delta mag (ΔM) |
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Spectral class |
K0V (yellow-orange) |
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Pri motion ra |
+103 |
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Sec motion ra |
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Pri motion dec |
+049 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
IR Eri |
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Constellation |
Eridanus |
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SAO |
148731 |
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HIP |
14157 |
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Tycho2 |
5865-01069-1 |
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Gaia DR2 |
5154084145316239744 |
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HD |
18955 |
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BD |
BD-15 532 |
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Distance |
50.56 |
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Distance ly |
164.93 |
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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 |
Notes | n | |
Reference | HJL2016 | |
Equinox | 2000 | |
Last observation | 2015 | |
Grade | 2 | (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 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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