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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:31:39
WDS:
A308
WDS ID/Discoverer
P:
174.380
Orbital period (years)
a:
0.2
Semi-major axis (arcseconds)
i:
68.4
Inclination (degrees)
Ω:
305.7
Longitude of ascending node (degrees)
T:
2015.310
Epoch of periastron passage (year)
e:
0.059
Eccentricity
ω:
26.1
Longitude of periastron (degrees)
Start-Year:
1938.0
Year
End-Year:
2112.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
220729.16+253811.4
Epoch-2000 right ascension and declination
WDS-ID:
22075+2538
WDS designation
Discoverer Code:
A308
Discover designation and components
ADS number:
15650
Aitken Double Star catalog
HD number:
210103
HD catalog number
Hipparcos number:
109211
Hipparcos catalog number
V1:
8.83
Magnitude of the primary
V2:
9.38
Magnitude of the secondary
Equinox:
Equinox
Date:
2006
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.135 328.4
-------------------------
1938.0 0.161 145.5
1939.0 0.157 146.7
1940.0 0.152 147.9
1941.0 0.148 149.3
1942.0 0.144 150.7
1943.0 0.140 152.2
1944.0 0.135 153.8
1945.0 0.131 155.5
1946.0 0.126 157.4
1947.0 0.122 159.4
1948.0 0.117 161.5
1949.0 0.113 163.8
1950.0 0.109 166.2
1951.0 0.104 168.9
1952.0 0.100 171.8
1953.0 0.096 175.0
1954.0 0.092 178.4
1955.0 0.089 182.1
1956.0 0.086 186.1
1957.0 0.083 190.4
1958.0 0.080 194.9
1959.0 0.078 199.7
1960.0 0.077 204.8
1961.0 0.076 210.0
1962.0 0.075 215.3
1963.0 0.075 220.7
1964.0 0.076 226.0
1965.0 0.077 231.1
1966.0 0.079 236.1
1967.0 0.081 240.8
1968.0 0.084 245.3
1969.0 0.087 249.5
1970.0 0.090 253.4
1971.0 0.094 257.0
1972.0 0.097 260.3
1973.0 0.101 263.4
1974.0 0.106 266.2
1975.0 0.110 268.8
1976.0 0.114 271.2
1977.0 0.118 273.5
1978.0 0.123 275.6
1979.0 0.127 277.5
1980.0 0.131 279.3
1981.0 0.135 281.1
1982.0 0.140 282.7
1983.0 0.144 284.2
1984.0 0.148 285.6
1985.0 0.152 287.0
1986.0 0.155 288.2
1987.0 0.159 289.5
1988.0 0.162 290.7
1989.0 0.165 291.8
1990.0 0.169 292.9
1991.0 0.171 293.9
1992.0 0.174 294.9
1993.0 0.177 295.9
1994.0 0.179 296.9
1995.0 0.181 297.8
1996.0 0.183 298.7
1997.0 0.185 299.6
1998.0 0.186 300.5
1999.0 0.187 301.4
2000.0 0.188 302.3
2001.0 0.189 303.1
2002.0 0.189 304.0
2003.0 0.189 304.8
2004.0 0.189 305.7
2005.0 0.189 306.5
2006.0 0.188 307.4
2007.0 0.188 308.2
2008.0 0.187 309.1
2009.0 0.185 310.0
2010.0 0.184 310.8
2011.0 0.182 311.8
2012.0 0.180 312.7
2013.0 0.178 313.6
2014.0 0.175 314.6
2015.0 0.173 315.6
2016.0 0.170 316.6
2017.0 0.167 317.7
2018.0 0.163 318.8
2019.0 0.160 320.0
2020.0 0.156 321.2
2021.0 0.152 322.5
2022.0 0.148 323.8
2023.0 0.144 325.2
2024.0 0.140 326.8
2025.0 0.135 328.4
2026.0 0.131 330.1
2027.0 0.126 331.9
2028.0 0.122 333.9
2029.0 0.117 336.0
2030.0 0.113 338.3
2031.0 0.108 340.8
2032.0 0.103 343.5
2033.0 0.099 346.5
2034.0 0.095 349.7
2035.0 0.090 353.3
2036.0 0.087 357.2
2037.0 0.083 1.4
2038.0 0.080 6.0
2039.0 0.077 10.9
2040.0 0.075 16.2
2041.0 0.073 21.8
2042.0 0.072 27.5
2043.0 0.072 33.4
2044.0 0.072 39.4
2045.0 0.073 45.2
2046.0 0.074 50.9
2047.0 0.076 56.2
2048.0 0.079 61.3
2049.0 0.082 66.0
2050.0 0.085 70.3
2051.0 0.089 74.3
2052.0 0.093 78.0
2053.0 0.098 81.3
2054.0 0.102 84.4
2055.0 0.107 87.1
2056.0 0.111 89.7
2057.0 0.116 92.0
2058.0 0.121 94.2
2059.0 0.126 96.2
2060.0 0.131 98.0
2061.0 0.135 99.8
2062.0 0.140 101.4
2063.0 0.145 102.9
2064.0 0.149 104.3
2065.0 0.153 105.6
2066.0 0.158 106.8
2067.0 0.162 108.0
2068.0 0.166 109.2
2069.0 0.170 110.2
2070.0 0.174 111.3
2071.0 0.177 112.3
2072.0 0.181 113.2
2073.0 0.184 114.1
2074.0 0.187 115.0
2075.0 0.190 115.9
2076.0 0.193 116.7
2077.0 0.195 117.5
2078.0 0.198 118.3
2079.0 0.200 119.0
2080.0 0.202 119.8
2081.0 0.204 120.5
2082.0 0.205 121.3
2083.0 0.207 122.0
2084.0 0.208 122.7
2085.0 0.209 123.4
2086.0 0.209 124.1
2087.0 0.210 124.8
2088.0 0.210 125.5
2089.0 0.211 126.1
2090.0 0.210 126.8
2091.0 0.210 127.5
2092.0 0.210 128.2
2093.0 0.209 128.9
2094.0 0.208 129.6
2095.0 0.207 130.3
2096.0 0.206 131.0
2097.0 0.205 131.7
2098.0 0.203 132.5
2099.0 0.201 133.2
2100.0 0.199 134.0
2101.0 0.197 134.7
2102.0 0.195 135.5
2103.0 0.192 136.3
2104.0 0.189 137.2
2105.0 0.186 138.0
2106.0 0.183 138.9
2107.0 0.180 139.8
2108.0 0.177 140.8
2109.0 0.173 141.8
2110.0 0.170 142.8
2111.0 0.166 143.9
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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