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 |
|
Discov num |
I 292 |
|
Comp |
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|
Coord arcsec 2000 |
10 04 17.80 -28 22 43.6 |
|
| Date first |
1883 |
|
Date last |
2022 |
|
Obs |
80 |
|
| Pa first |
217 |
|
Pa last |
297.9 |
|
P.A. Now (θ) |
297.1° |
|
| Sep first |
1.2 |
|
Sep last |
0.836 |
|
Sep. Now (ρ) |
0.836" |
|
| Mag pri |
8.43 |
|
Mag sec |
7.77 |
|
delta mag (ΔM) |
0.66 |
|
Spectral class |
F6V (yellow-white) |
|
| Pri motion ra |
-041 |
|
Sec motion ra |
-041 |
|
| Pri motion dec |
-023 |
|
Sec motion dec |
-023 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 87416 |
|
Constellation |
Antlia |
|
SAO |
178366 |
|
HIP |
49336 |
|
| Tycho2 |
6629-00973-1 |
|
Gaia DR2 |
5465523493944732800 |
|
HD |
87416 |
|
GC |
13846 |
|
| ADS |
7629 |
|
CD |
CD-27 7171 |
|
CP |
CP-27 3978 |
|
Distance |
81.7 |
|
| Distance ly |
266.51 |
|
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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