21466-5742 FIN 283 (HD 206804)
21h 46m 35.77s -57° 42' 10.9" P.A. 136.00 sep 0.2 mag 9.57,9.68 Sp K7V dist. 18.63 pc (60.77 l.y.)
| Coord 2000 |
21466-5742 |
|
Discov num |
FIN 283 |
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Comp |
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Coord arcsec 2000 |
21 46 35.77 -57 42 10.9 |
|
| Date first |
1928 |
|
Date last |
2021 |
|
Obs |
38 |
|
| Pa first |
302 |
|
Pa last |
136.4 |
|
P.A. Now (θ) |
113.3° |
|
| Sep first |
0.3 |
|
Sep last |
0.233 |
|
Sep. Now (ρ) |
0.319" |
|
| Mag pri |
9.57 |
|
Mag sec |
9.68 |
|
delta mag (ΔM) |
0.11 |
|
Spectral class |
K7V (yellow-orange) |
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| Pri motion ra |
+090 |
|
Sec motion ra |
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| Pri motion dec |
-907 |
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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 206804 |
|
Constellation |
Indus |
|
HIP |
107522 |
|
Tycho2 |
8815-00877-1 |
|
| HD |
206804 |
|
GL |
Gl 836.9A |
|
CD |
CD-58 8156 |
|
CP |
CP-58 7893 |
|
| Distance |
18.63 |
|
Distance ly |
60.77 |
|
ORBITAL ELEMENTS
| Period (P) | 12.46y | |
Periastron (T) | 1986y | |
Semi-major axis (a) | 0.324a | |
| Eccentricity (e) | 0 | |
Inclination (i) | 113° | |
Longitude of periastron (ω) | 0° | |
| Node (Ω) | 109° | |
Notes | n | |
Reference | Sod1999 | |
| Equinox | 2000 | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
88.0 |
0.248 |
| 2001 |
56.4 |
0.153 |
| 2002 |
349.9 |
0.142 |
| 2003 |
313.1 |
0.234 |
| 2004 |
297.1 |
0.308 |
| 2005 |
285.5 |
0.321 |
| 2006 |
272.1 |
0.267 |
| 2007 |
246.7 |
0.173 |
| 2008 |
184.8 |
0.130 |
| 2009 |
138.6 |
0.211 |
| 2010 |
120.1 |
0.295 |
| 2011 |
108.1 |
0.324 |
| 2012 |
95.7 |
0.285 |
| 2013 |
74.8 |
0.195 |
| 2014 |
21.6 |
0.127 |
| 2015 |
325.4 |
0.188 |
| 2016 |
303.4 |
0.280 |
| 2017 |
290.7 |
0.323 |
| 2018 |
278.9 |
0.299 |
| 2019 |
261.2 |
0.218 |
| 2020 |
218.0 |
0.133 |
| 2021 |
154.2 |
0.166 |
| 2022 |
127.1 |
0.262 |
| 2023 |
113.3 |
0.319 |
| 2024 |
101.8 |
0.311 |
| 2025 |
86.4 |
0.240 |
| 2026 |
52.1 |
0.146 |
| 2027 |
345.3 |
0.147 |
| 2028 |
311.4 |
0.241 |
| 2029 |
296.1 |
0.311 |
| 2030 |
284.5 |
0.319 |
| 2031 |
270.8 |
0.261 |
| 2032 |
243.4 |
0.166 |
| 2033 |
179.3 |
0.133 |
| 2034 |
136.5 |
0.219 |
| 2035 |
119.0 |
0.300 |
| 2036 |
107.2 |
0.323 |
| 2037 |
94.5 |
0.279 |
| 2038 |
72.2 |
0.187 |
| 2039 |
15.7 |
0.127 |
| 2040 |
322.9 |
0.196 |
| 2041 |
302.2 |
0.285 |
| 2042 |
289.8 |
0.324 |
| 2043 |
277.8 |
0.295 |
| 2044 |
259.1 |
0.210 |
| 2045 |
212.5 |
0.130 |
| 2046 |
150.9 |
0.174 |
| 2047 |
125.7 |
0.268 |
| 2048 |
112.4 |
0.321 |
| 2049 |
100.8 |
0.307 |
| 2050 |
84.7 |
0.233 |
|
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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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