09264-4215 B 1122 (HD 81782)
09h 26m 24.58s -42° 15' 04.2" P.A. 240.00 sep 0.2 mag 8.05,7.17 Sp A0 dist. 321.54 pc (1048.86 l.y.)
| Coord 2000 |
09264-4215 |
|
Discov num |
B 1122 |
|
Comp |
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Coord arcsec 2000 |
09 26 24.58 -42 15 04.2 |
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| Date first |
1928 |
|
Date last |
2018 |
|
Obs |
25 |
|
| Pa first |
160 |
|
Pa last |
239.8 |
|
P.A. Now (θ) |
239.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.155 |
|
Sep. Now (ρ) |
0.155" |
|
| Mag pri |
8.05 |
|
Mag sec |
7.17 |
|
delta mag (ΔM) |
0.88 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
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| Pri motion dec |
+002 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 81782 |
|
Constellation |
Vela |
|
SAO |
221166 |
|
HIP |
46290 |
|
| Tycho2 |
7699-00689-1 |
|
Gaia DR2 |
5426005220682750080 |
|
HD |
81782 |
|
GC |
13029 |
|
| CD |
CD-41 5091 |
|
CP |
CP-41 3702 |
|
Distance |
321.54 |
|
Distance ly |
1048.86 |
|
ORBITAL ELEMENTS
| Period (P) | 225.25y | |
Periastron (T) | 2035.97y | |
Semi-major axis (a) | 0.298a | |
| Eccentricity (e) | 0.808 | |
Inclination (i) | 67.7° | |
Longitude of periastron (ω) | 258° | |
| Node (Ω) | 88.4° | |
Notes | | |
Reference | Doc2019b | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
217.7 |
0.164 |
| 2001 |
218.8 |
0.164 |
| 2002 |
220.0 |
0.163 |
| 2003 |
221.2 |
0.163 |
| 2004 |
222.4 |
0.162 |
| 2005 |
223.6 |
0.162 |
| 2006 |
224.9 |
0.161 |
| 2007 |
226.1 |
0.161 |
| 2008 |
227.3 |
0.160 |
| 2009 |
228.6 |
0.159 |
| 2010 |
229.8 |
0.159 |
| 2011 |
231.1 |
0.158 |
| 2012 |
232.4 |
0.157 |
| 2013 |
233.7 |
0.156 |
| 2014 |
235.0 |
0.155 |
| 2015 |
236.3 |
0.154 |
| 2016 |
237.7 |
0.153 |
| 2017 |
239.0 |
0.151 |
| 2018 |
240.4 |
0.150 |
| 2019 |
241.9 |
0.148 |
| 2020 |
243.3 |
0.146 |
| 2021 |
244.8 |
0.144 |
| 2022 |
246.4 |
0.142 |
| 2023 |
248.0 |
0.139 |
| 2024 |
249.7 |
0.136 |
| 2025 |
251.4 |
0.133 |
| 2026 |
253.3 |
0.129 |
| 2027 |
255.3 |
0.124 |
| 2028 |
257.4 |
0.119 |
| 2029 |
259.8 |
0.113 |
| 2030 |
262.5 |
0.105 |
| 2031 |
265.6 |
0.096 |
| 2032 |
269.4 |
0.086 |
| 2033 |
274.4 |
0.073 |
| 2034 |
282.0 |
0.057 |
| 2035 |
295.9 |
0.040 |
| 2036 |
330.8 |
0.024 |
| 2037 |
30.8 |
0.026 |
| 2038 |
59.7 |
0.043 |
| 2039 |
71.5 |
0.062 |
| 2040 |
77.9 |
0.079 |
| 2041 |
82.2 |
0.095 |
| 2042 |
85.3 |
0.108 |
| 2043 |
87.7 |
0.121 |
| 2044 |
89.7 |
0.131 |
| 2045 |
91.4 |
0.141 |
| 2046 |
92.9 |
0.150 |
| 2047 |
94.2 |
0.159 |
| 2048 |
95.4 |
0.166 |
| 2049 |
96.5 |
0.173 |
| 2050 |
97.5 |
0.180 |
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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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