00463-0634 HDS 101 (HD 4393)
00h 46m 16.11s -06° 33' 58.4" P.A. 11.00 sep 0.1 mag 8.93,10.27 Sp F5 dist. 138.5 pc (451.79 l.y.)
| Coord 2000 |
00463-0634 |
|
Discov num |
HDS 101 |
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Comp |
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Coord arcsec 2000 |
00 46 16.11 -06 33 58.4 |
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| Date first |
1991 |
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Date last |
2021 |
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Obs |
13 |
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| Pa first |
11 |
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Pa last |
11 |
|
P.A. Now (θ) |
14.3° |
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| Sep first |
0.1 |
|
Sep last |
0.149 |
|
Sep. Now (ρ) |
0.152" |
|
| Mag pri |
8.93 |
|
Mag sec |
10.27 |
|
delta mag (ΔM) |
1.34 |
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Spectral class |
F5 (yellow-white) |
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| Pri motion ra |
+037 |
|
Sec motion ra |
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| Pri motion dec |
+005 |
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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
| Name |
HD 4393 |
|
Constellation |
Cetus |
|
SAO |
128945 |
|
HIP |
3612 |
|
| Tycho2 |
4679-00531-1 |
|
Gaia DR2 |
2523760617498080768 |
|
HD |
4393 |
|
BD |
BD-07 117 |
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| Distance |
138.5 |
|
Distance ly |
451.79 |
|
ORBITAL ELEMENTS
| Period (P) | 28.5y | ± 0.5 |
Periastron (T) | 2010.23y | ± 0.08 |
Semi-major axis (a) | 0.09a | ± 0.004 |
| Eccentricity (e) | 0.707 | ± 0.005 |
Inclination (i) | 20.3° | ± 1 |
Longitude of periastron (ω) | 185.7° | ± 12 |
| Node (Ω) | 13.2° | ± 6 |
Notes | n | |
Reference | Doc2022a | |
| Equinox | | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
30.6 |
0.144 |
| 2001 |
34.0 |
0.139 |
| 2002 |
37.7 |
0.132 |
| 2003 |
41.8 |
0.124 |
| 2004 |
46.6 |
0.115 |
| 2005 |
52.3 |
0.104 |
| 2006 |
59.4 |
0.091 |
| 2007 |
69.1 |
0.076 |
| 2008 |
84.0 |
0.059 |
| 2009 |
111.8 |
0.041 |
| 2010 |
176.6 |
0.027 |
| 2011 |
263.5 |
0.033 |
| 2012 |
304.1 |
0.051 |
| 2013 |
323.0 |
0.070 |
| 2014 |
334.3 |
0.086 |
| 2015 |
342.3 |
0.099 |
| 2016 |
348.4 |
0.111 |
| 2017 |
353.4 |
0.121 |
| 2018 |
357.7 |
0.130 |
| 2019 |
1.5 |
0.137 |
| 2020 |
5.0 |
0.143 |
| 2021 |
8.2 |
0.147 |
| 2022 |
11.3 |
0.150 |
| 2023 |
14.3 |
0.152 |
| 2024 |
17.2 |
0.153 |
| 2025 |
20.0 |
0.153 |
| 2026 |
23.0 |
0.152 |
| 2027 |
25.9 |
0.150 |
| 2028 |
29.0 |
0.146 |
| 2029 |
32.3 |
0.142 |
| 2030 |
35.8 |
0.136 |
| 2031 |
39.7 |
0.128 |
| 2032 |
44.1 |
0.120 |
| 2033 |
49.3 |
0.110 |
| 2034 |
55.6 |
0.098 |
| 2035 |
63.9 |
0.084 |
| 2036 |
75.7 |
0.068 |
| 2037 |
95.4 |
0.050 |
| 2038 |
137.3 |
0.033 |
| 2039 |
224.5 |
0.027 |
| 2040 |
288.3 |
0.042 |
| 2041 |
315.0 |
0.061 |
| 2042 |
329.3 |
0.078 |
| 2043 |
338.6 |
0.093 |
| 2044 |
345.5 |
0.106 |
| 2045 |
351.0 |
0.116 |
| 2046 |
355.6 |
0.126 |
| 2047 |
359.7 |
0.133 |
| 2048 |
3.3 |
0.140 |
| 2049 |
6.7 |
0.145 |
| 2050 |
9.8 |
0.149 |
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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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