10043-2823 I 292 (HD 87416)
10h 04m 17.80s -28° 22' 43.6" P.A. 298.00 sep 0.8 mag 8.43,7.77 Sp F6V dist. 81.7 pc (266.51 l.y.)
Coord 2000 |
10043-2823 |
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Discov num |
I 292 |
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Comp |
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Coord arcsec 2000 |
10 04 17.80 -28 22 43.6 |
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Date first |
1883 |
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Date last |
2022 |
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Obs |
80 |
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Pa first |
217 |
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Pa last |
297.9 |
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P.A. Now (θ) |
297.1° |
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Sep first |
1.2 |
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Sep last |
0.836 |
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Sep. Now (ρ) |
0.836" |
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Mag pri |
8.43 |
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Mag sec |
7.77 |
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delta mag (ΔM) |
0.66 |
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Spectral class |
F6V (yellow-white) |
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Pri motion ra |
-041 |
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Sec motion ra |
-041 |
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Pri motion dec |
-023 |
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Sec motion dec |
-023 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 87416 |
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Constellation |
Antlia |
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SAO |
178366 |
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HIP |
49336 |
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Tycho2 |
6629-00973-1 |
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Gaia DR2 |
5465523493944732800 |
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HD |
87416 |
|
GC |
13846 |
|
ADS |
7629 |
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CD |
CD-27 7171 |
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CP |
CP-27 3978 |
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Distance |
81.7 |
|
Distance ly |
266.51 |
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ORBITAL ELEMENTS
Period (P) | 380y | |
Periastron (T) | 1971.25y | |
Semi-major axis (a) | 0.869a | |
Eccentricity (e) | 0.718 | |
Inclination (i) | 142.9° | |
Longitude of periastron (ω) | 71.7° | |
Node (Ω) | 139.8° | |
Notes | n | |
Reference | Tok2020g | |
Equinox | 2000 | |
Last observation | 2020 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
314.9 |
0.597 |
2001 |
313.8 |
0.610 |
2002 |
312.8 |
0.623 |
2003 |
311.8 |
0.635 |
2004 |
310.8 |
0.647 |
2005 |
309.9 |
0.659 |
2006 |
309.0 |
0.670 |
2007 |
308.1 |
0.681 |
2008 |
307.3 |
0.692 |
2009 |
306.5 |
0.703 |
2010 |
305.7 |
0.714 |
2011 |
304.9 |
0.724 |
2012 |
304.2 |
0.735 |
2013 |
303.4 |
0.745 |
2014 |
302.7 |
0.755 |
2015 |
302.0 |
0.764 |
2016 |
301.4 |
0.774 |
2017 |
300.7 |
0.783 |
2018 |
300.1 |
0.792 |
2019 |
299.4 |
0.801 |
2020 |
298.8 |
0.810 |
2021 |
298.2 |
0.819 |
2022 |
297.6 |
0.827 |
2023 |
297.1 |
0.836 |
2024 |
296.5 |
0.844 |
2025 |
296.0 |
0.852 |
2026 |
295.4 |
0.860 |
2027 |
294.9 |
0.868 |
2028 |
294.4 |
0.876 |
2029 |
293.9 |
0.883 |
2030 |
293.3 |
0.891 |
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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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