09183+1847 COU 384 (HD 80082)
09h 18m 16.92s +18° 46' 51.7" P.A. 56.00 sep 0.2 mag 8.20,8.30 Sp F0 dist. 135.87 pc (443.21 l.y.)
Coord 2000 |
09183+1847 |
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Discov num |
COU 384 |
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Comp |
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Coord arcsec 2000 |
09 18 16.92 +18 46 51.7 |
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Date first |
1969 |
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Date last |
2012 |
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Obs |
19 |
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Pa first |
66 |
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Pa last |
55.9 |
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P.A. Now (θ) |
233.8° |
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Sep first |
0.2 |
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Sep last |
0.185 |
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Sep. Now (ρ) |
0.138" |
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Mag pri |
8.20 |
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Mag sec |
8.30 |
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delta mag (ΔM) |
0.1 |
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Spectral class |
F0 (yellow-white) |
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Pri motion ra |
-010 |
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Sec motion ra |
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Pri motion dec |
-014 |
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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 80082 |
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Constellation |
Cancer |
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SAO |
98481 |
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HIP |
45648 |
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Tycho2 |
1405-00099-1 |
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Gaia DR2 |
635614035496860288 |
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HD |
80082 |
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BD |
BD+19 2194 |
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Distance |
135.87 |
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Distance ly |
443.21 |
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ORBITAL ELEMENTS
Period (P) | 40.43y | ± 0.38 |
Periastron (T) | 1999.33y | ± 0.14 |
Semi-major axis (a) | 0.1475a | ± 0.0003 |
Eccentricity (e) | 0.379 | ± 0.004 |
Inclination (i) | 96.83° | ± 0.15 |
Longitude of periastron (ω) | 31.3° | ± 1.9 |
Node (Ω) | 60.96° | ± 0.11 |
Notes | | |
Reference | BAE2021 | |
Equinox | | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
54.1 |
0.065 |
2001 |
46.1 |
0.041 |
2002 |
12.4 |
0.016 |
2003 |
275.6 |
0.023 |
2004 |
256.4 |
0.049 |
2005 |
250.7 |
0.075 |
2006 |
247.8 |
0.098 |
2007 |
246.0 |
0.119 |
2008 |
244.7 |
0.137 |
2009 |
243.7 |
0.152 |
2010 |
242.8 |
0.165 |
2011 |
242.1 |
0.175 |
2012 |
241.4 |
0.183 |
2013 |
240.8 |
0.188 |
2014 |
240.2 |
0.191 |
2015 |
239.6 |
0.192 |
2016 |
239.0 |
0.192 |
2017 |
238.5 |
0.189 |
2018 |
237.8 |
0.184 |
2019 |
237.2 |
0.178 |
2020 |
236.5 |
0.171 |
2021 |
235.7 |
0.161 |
2022 |
234.8 |
0.150 |
2023 |
233.8 |
0.138 |
2024 |
232.6 |
0.125 |
2025 |
231.0 |
0.110 |
2026 |
229.0 |
0.094 |
2027 |
226.1 |
0.078 |
2028 |
221.5 |
0.060 |
2029 |
213.2 |
0.043 |
2030 |
194.2 |
0.027 |
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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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