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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:48:57
WDS:
COU114
WDS ID/Discoverer
P:
105.000
Orbital period (years)
a:
0.305
Semi-major axis (arcseconds)
i:
77.2
Inclination (degrees)
Ω:
16.0
Longitude of ascending node (degrees)
T:
1943.830
Epoch of periastron passage (year)
e:
0.55
Eccentricity
ω:
66.0
Longitude of periastron (degrees)
Start-Year:
1973.0
Year
End-Year:
2077.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
174147.72+213006.4
Epoch-2000 right ascension and declination
WDS-ID:
17418+2130
WDS designation
Discoverer Code:
COU114
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
160935
HD catalog number
Hipparcos number:
86596
Hipparcos catalog number
V1:
7.25
Magnitude of the primary
V2:
8.10
Magnitude of the secondary
Equinox:
Equinox
Date:
Date of last observation
Orbit grade:
4
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.130 339.3
-------------------------
1973.0 0.334 204.8
1974.0 0.332 205.4
1975.0 0.330 205.9
1976.0 0.328 206.5
1977.0 0.325 207.0
1978.0 0.322 207.6
1979.0 0.319 208.1
1980.0 0.315 208.7
1981.0 0.311 209.3
1982.0 0.306 209.9
1983.0 0.302 210.6
1984.0 0.297 211.2
1985.0 0.291 211.9
1986.0 0.286 212.6
1987.0 0.280 213.4
1988.0 0.273 214.2
1989.0 0.267 215.0
1990.0 0.260 215.8
1991.0 0.254 216.7
1992.0 0.247 217.6
1993.0 0.240 218.6
1994.0 0.232 219.7
1995.0 0.225 220.8
1996.0 0.217 222.0
1997.0 0.210 223.3
1998.0 0.202 224.7
1999.0 0.194 226.2
2000.0 0.186 227.9
2001.0 0.178 229.6
2002.0 0.170 231.6
2003.0 0.163 233.7
2004.0 0.155 236.1
2005.0 0.147 238.6
2006.0 0.140 241.5
2007.0 0.133 244.7
2008.0 0.126 248.2
2009.0 0.119 252.1
2010.0 0.113 256.5
2011.0 0.108 261.3
2012.0 0.103 266.6
2013.0 0.100 272.4
2014.0 0.097 278.5
2015.0 0.095 284.9
2016.0 0.094 291.5
2017.0 0.095 298.2
2018.0 0.096 304.7
2019.0 0.099 310.9
2020.0 0.102 316.7
2021.0 0.107 322.1
2022.0 0.112 327.1
2023.0 0.117 331.6
2024.0 0.124 335.6
2025.0 0.130 339.3
2026.0 0.137 342.7
2027.0 0.143 345.7
2028.0 0.150 348.4
2029.0 0.157 350.9
2030.0 0.163 353.2
2031.0 0.169 355.4
2032.0 0.175 357.4
2033.0 0.181 359.2
2034.0 0.186 1.0
2035.0 0.190 2.6
2036.0 0.193 4.3
2037.0 0.196 5.8
2038.0 0.197 7.3
2039.0 0.197 8.9
2040.0 0.195 10.4
2041.0 0.192 12.0
2042.0 0.186 13.6
2043.0 0.177 15.4
2044.0 0.166 17.4
2045.0 0.151 19.8
2046.0 0.132 22.7
2047.0 0.110 26.8
2048.0 0.084 33.1
2049.0 0.058 45.2
2050.0 0.036 74.9
2051.0 0.035 130.3
2052.0 0.056 161.7
2053.0 0.084 174.3
2054.0 0.111 180.6
2055.0 0.136 184.5
2056.0 0.160 187.2
2057.0 0.182 189.3
2058.0 0.202 190.9
2059.0 0.219 192.2
2060.0 0.236 193.3
2061.0 0.250 194.3
2062.0 0.263 195.2
2063.0 0.275 196.0
2064.0 0.285 196.8
2065.0 0.294 197.5
2066.0 0.302 198.2
2067.0 0.309 198.8
2068.0 0.315 199.4
2069.0 0.320 200.0
2070.0 0.324 200.6
2071.0 0.328 201.1
2072.0 0.330 201.7
2073.0 0.332 202.2
2074.0 0.334 202.7
2075.0 0.335 203.3
2076.0 0.335 203.8
This result is provided without warranty. For all terms, see the Full Disclaimer .
Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory .
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