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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:55:07
WDS:
A1831BC
WDS ID/Discoverer
P:
216.020
Orbital period (years)
a:
0.187
Semi-major axis (arcseconds)
i:
56.0
Inclination (degrees)
Ω:
231.8
Longitude of ascending node (degrees)
T:
1986.200
Epoch of periastron passage (year)
e:
0.099
Eccentricity
ω:
300.1
Longitude of periastron (degrees)
Start-Year:
1917.0
Year
End-Year:
2133.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
035427.09+051128.2
Epoch-2000 right ascension and declination
WDS-ID:
03545+0510
WDS designation
Discoverer Code:
A1831BC
Discover designation and components
ADS number:
2849
Aitken Double Star catalog
HD number:
24550
HD catalog number
Hipparcos number:
18264
Hipparcos catalog number
V1:
9.38
Magnitude of the primary
V2:
10.35
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2014
Date of last observation
Orbit grade:
4
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 0.176 240.6
-------------------------
1917.0 0.196 49.0
1918.0 0.196 49.9
1919.0 0.195 50.7
1920.0 0.195 51.6
1921.0 0.194 52.4
1922.0 0.194 53.3
1923.0 0.193 54.2
1924.0 0.192 55.0
1925.0 0.191 55.9
1926.0 0.190 56.8
1927.0 0.189 57.7
1928.0 0.188 58.6
1929.0 0.187 59.5
1930.0 0.185 60.5
1931.0 0.184 61.4
1932.0 0.182 62.4
1933.0 0.181 63.4
1934.0 0.179 64.4
1935.0 0.177 65.4
1936.0 0.175 66.5
1937.0 0.173 67.5
1938.0 0.171 68.6
1939.0 0.168 69.8
1940.0 0.166 70.9
1941.0 0.164 72.1
1942.0 0.161 73.4
1943.0 0.159 74.6
1944.0 0.156 75.9
1945.0 0.153 77.3
1946.0 0.151 78.7
1947.0 0.148 80.1
1948.0 0.145 81.7
1949.0 0.142 83.2
1950.0 0.139 84.9
1951.0 0.137 86.6
1952.0 0.134 88.3
1953.0 0.131 90.2
1954.0 0.128 92.1
1955.0 0.125 94.2
1956.0 0.122 96.3
1957.0 0.120 98.5
1958.0 0.117 100.8
1959.0 0.114 103.2
1960.0 0.112 105.8
1961.0 0.109 108.4
1962.0 0.107 111.2
1963.0 0.105 114.1
1964.0 0.103 117.1
1965.0 0.101 120.2
1966.0 0.100 123.4
1967.0 0.098 126.7
1968.0 0.097 130.1
1969.0 0.096 133.5
1970.0 0.096 137.0
1971.0 0.095 140.6
1972.0 0.095 144.1
1973.0 0.095 147.7
1974.0 0.096 151.2
1975.0 0.097 154.8
1976.0 0.097 158.2
1977.0 0.099 161.6
1978.0 0.100 164.9
1979.0 0.102 168.1
1980.0 0.103 171.1
1981.0 0.105 174.1
1982.0 0.107 177.0
1983.0 0.110 179.8
1984.0 0.112 182.4
1985.0 0.114 184.9
1986.0 0.117 187.4
1987.0 0.119 189.7
1988.0 0.122 191.9
1989.0 0.125 194.0
1990.0 0.127 196.1
1991.0 0.130 198.0
1992.0 0.133 199.9
1993.0 0.136 201.7
1994.0 0.138 203.4
1995.0 0.141 205.1
1996.0 0.143 206.7
1997.0 0.146 208.2
1998.0 0.148 209.7
1999.0 0.151 211.2
2000.0 0.153 212.6
2001.0 0.155 214.0
2002.0 0.157 215.3
2003.0 0.159 216.6
2004.0 0.161 217.8
2005.0 0.163 219.1
2006.0 0.165 220.3
2007.0 0.167 221.5
2008.0 0.168 222.6
2009.0 0.170 223.8
2010.0 0.171 224.9
2011.0 0.172 226.0
2012.0 0.173 227.1
2013.0 0.174 228.1
2014.0 0.175 229.2
2015.0 0.176 230.3
2016.0 0.176 231.3
2017.0 0.177 232.3
2018.0 0.177 233.4
2019.0 0.177 234.4
2020.0 0.177 235.5
2021.0 0.177 236.5
2022.0 0.177 237.5
2023.0 0.177 238.5
2024.0 0.177 239.6
2025.0 0.176 240.6
2026.0 0.176 241.7
2027.0 0.175 242.7
2028.0 0.174 243.8
2029.0 0.173 244.9
2030.0 0.172 246.0
2031.0 0.171 247.1
2032.0 0.170 248.2
2033.0 0.169 249.3
2034.0 0.168 250.4
2035.0 0.166 251.6
2036.0 0.165 252.8
2037.0 0.163 254.0
2038.0 0.162 255.2
2039.0 0.160 256.5
2040.0 0.158 257.8
2041.0 0.157 259.1
2042.0 0.155 260.4
2043.0 0.153 261.8
2044.0 0.151 263.2
2045.0 0.149 264.6
2046.0 0.147 266.1
2047.0 0.145 267.6
2048.0 0.143 269.2
2049.0 0.141 270.8
2050.0 0.139 272.4
2051.0 0.138 274.1
2052.0 0.136 275.8
2053.0 0.134 277.6
2054.0 0.132 279.5
2055.0 0.130 281.4
2056.0 0.128 283.3
2057.0 0.127 285.3
2058.0 0.125 287.3
2059.0 0.123 289.4
2060.0 0.122 291.6
2061.0 0.121 293.8
2062.0 0.119 296.1
2063.0 0.118 298.4
2064.0 0.117 300.7
2065.0 0.116 303.1
2066.0 0.115 305.5
2067.0 0.115 308.0
2068.0 0.114 310.4
2069.0 0.114 312.9
2070.0 0.113 315.5
2071.0 0.113 318.0
2072.0 0.113 320.5
2073.0 0.113 323.1
2074.0 0.114 325.6
2075.0 0.114 328.1
2076.0 0.115 330.6
2077.0 0.115 333.0
2078.0 0.116 335.4
2079.0 0.117 337.8
2080.0 0.118 340.1
2081.0 0.120 342.4
2082.0 0.121 344.7
2083.0 0.122 346.9
2084.0 0.124 349.0
2085.0 0.125 351.1
2086.0 0.127 353.1
2087.0 0.129 355.1
2088.0 0.131 357.1
2089.0 0.133 358.9
2090.0 0.135 0.7
2091.0 0.137 2.5
2092.0 0.139 4.2
2093.0 0.141 5.9
2094.0 0.143 7.5
2095.0 0.145 9.1
2096.0 0.147 10.6
2097.0 0.149 12.1
2098.0 0.151 13.5
2099.0 0.153 14.9
2100.0 0.156 16.3
2101.0 0.158 17.6
2102.0 0.160 18.9
2103.0 0.162 20.1
2104.0 0.164 21.4
2105.0 0.166 22.5
2106.0 0.168 23.7
2107.0 0.170 24.8
2108.0 0.172 26.0
2109.0 0.173 27.1
2110.0 0.175 28.1
2111.0 0.177 29.2
2112.0 0.179 30.2
2113.0 0.180 31.2
2114.0 0.182 32.2
2115.0 0.183 33.2
2116.0 0.185 34.1
2117.0 0.186 35.1
2118.0 0.187 36.0
2119.0 0.188 36.9
2120.0 0.190 37.8
2121.0 0.191 38.7
2122.0 0.191 39.6
2123.0 0.192 40.5
2124.0 0.193 41.4
2125.0 0.194 42.2
2126.0 0.194 43.1
2127.0 0.195 43.9
2128.0 0.195 44.8
2129.0 0.196 45.6
2130.0 0.196 46.5
2131.0 0.196 47.3
2132.0 0.196 48.2
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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