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 |
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Discov num |
HJ 4831 |
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Comp |
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Coord arcsec 2000 |
16 07 16.17 -36 45 19.9 |
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Date first |
1834 |
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Date last |
2015 |
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Obs |
13 |
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Pa first |
359 |
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Pa last |
357.7 |
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P.A. Now (θ) |
357.7° |
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Sep first |
40.0 |
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Sep last |
40.445 |
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Sep. Now (ρ) |
40.445" |
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Mag pri |
5.74 |
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Mag sec |
11.84 |
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delta mag (ΔM) |
6.1 |
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Spectral class |
F1IV (yellow-white) |
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Pri motion ra |
+047 |
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Sec motion ra |
+029 |
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Pri motion dec |
-065 |
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Sec motion dec |
-038 |
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Notes |
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rPM=0.405
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 144415 |
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Constellation |
Lupus |
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SAO |
207341 |
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HIP |
78970 |
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Tycho2 |
7342-01314-1 |
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Gaia DR2 |
5998675582756950272 |
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HD |
144415 |
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HR |
5991 |
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GC |
21647 |
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CD |
CD-3610648 |
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CP |
CP-36 6938 |
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Distance |
54.79 |
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Distance ly |
178.72 |
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SUSPECTED ORBITAL ELEMENTS
Identifier | 16073-3645 HJ 4831 A |
coord_arcsec_2000 | 160716.17-364519.9 |
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 | | |
Reference | Gln2007 | |
Equinox | | |
Last observation | 1991 | |
Grade | 9 | (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 |
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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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