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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:22:39
WDS:
HU371
WDS ID/Discoverer
P:
178.600
Orbital period (years)
a:
0.272
Semi-major axis (arcseconds)
i:
59.7
Inclination (degrees)
Ω:
136.9
Longitude of ascending node (degrees)
T:
1870.200
Epoch of periastron passage (year)
e:
0.31
Eccentricity
ω:
296.6
Longitude of periastron (degrees)
Start-Year:
1936.0
Year
End-Year:
2114.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
213527.03+242707.9
Epoch-2000 right ascension and declination
WDS-ID:
21355+2427
WDS designation
Discoverer Code:
HU371
Discover designation and components
ADS number:
15115
Aitken Double Star catalog
HD number:
205541
HD catalog number
Hipparcos number:
106605
Hipparcos catalog number
V1:
6.83
Magnitude of the primary
V2:
7.27
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2005
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 0.204 336.5
-------------------------
1936.0 0.171 225.9
1937.0 0.172 228.3
1938.0 0.173 230.7
1939.0 0.174 233.1
1940.0 0.175 235.5
1941.0 0.177 237.8
1942.0 0.179 240.0
1943.0 0.180 242.2
1944.0 0.182 244.4
1945.0 0.184 246.5
1946.0 0.187 248.6
1947.0 0.189 250.6
1948.0 0.192 252.6
1949.0 0.194 254.5
1950.0 0.197 256.4
1951.0 0.200 258.2
1952.0 0.203 260.0
1953.0 0.206 261.7
1954.0 0.209 263.4
1955.0 0.212 265.0
1956.0 0.215 266.5
1957.0 0.218 268.1
1958.0 0.222 269.5
1959.0 0.225 271.0
1960.0 0.228 272.4
1961.0 0.231 273.7
1962.0 0.235 275.1
1963.0 0.238 276.3
1964.0 0.241 277.6
1965.0 0.244 278.8
1966.0 0.248 280.0
1967.0 0.251 281.1
1968.0 0.254 282.3
1969.0 0.257 283.3
1970.0 0.260 284.4
1971.0 0.263 285.5
1972.0 0.266 286.5
1973.0 0.269 287.5
1974.0 0.271 288.5
1975.0 0.274 289.4
1976.0 0.277 290.4
1977.0 0.279 291.3
1978.0 0.281 292.2
1979.0 0.284 293.1
1980.0 0.286 294.0
1981.0 0.288 294.9
1982.0 0.290 295.7
1983.0 0.292 296.6
1984.0 0.294 297.4
1985.0 0.295 298.2
1986.0 0.297 299.0
1987.0 0.298 299.9
1988.0 0.299 300.7
1989.0 0.300 301.5
1990.0 0.301 302.2
1991.0 0.302 303.0
1992.0 0.302 303.8
1993.0 0.303 304.6
1994.0 0.303 305.4
1995.0 0.303 306.1
1996.0 0.303 306.9
1997.0 0.303 307.7
1998.0 0.302 308.5
1999.0 0.302 309.3
2000.0 0.301 310.1
2001.0 0.300 310.9
2002.0 0.298 311.7
2003.0 0.297 312.5
2004.0 0.295 313.3
2005.0 0.293 314.1
2006.0 0.291 314.9
2007.0 0.289 315.8
2008.0 0.286 316.7
2009.0 0.283 317.5
2010.0 0.280 318.4
2011.0 0.277 319.4
2012.0 0.273 320.3
2013.0 0.270 321.3
2014.0 0.266 322.3
2015.0 0.261 323.3
2016.0 0.257 324.4
2017.0 0.252 325.5
2018.0 0.247 326.6
2019.0 0.241 327.8
2020.0 0.236 329.1
2021.0 0.230 330.4
2022.0 0.224 331.8
2023.0 0.217 333.3
2024.0 0.211 334.8
2025.0 0.204 336.5
2026.0 0.197 338.3
2027.0 0.189 340.2
2028.0 0.182 342.3
2029.0 0.175 344.5
2030.0 0.167 347.0
2031.0 0.159 349.7
2032.0 0.152 352.6
2033.0 0.144 355.9
2034.0 0.136 359.6
2035.0 0.129 3.6
2036.0 0.122 8.2
2037.0 0.116 13.2
2038.0 0.110 18.8
2039.0 0.105 25.0
2040.0 0.101 31.7
2041.0 0.099 38.8
2042.0 0.097 46.3
2043.0 0.097 53.9
2044.0 0.098 61.4
2045.0 0.101 68.7
2046.0 0.104 75.5
2047.0 0.109 81.8
2048.0 0.115 87.5
2049.0 0.121 92.7
2050.0 0.127 97.4
2051.0 0.134 101.6
2052.0 0.141 105.4
2053.0 0.148 108.8
2054.0 0.155 111.9
2055.0 0.161 114.8
2056.0 0.168 117.5
2057.0 0.174 119.9
2058.0 0.180 122.2
2059.0 0.186 124.3
2060.0 0.191 126.3
2061.0 0.196 128.2
2062.0 0.201 130.0
2063.0 0.205 131.8
2064.0 0.209 133.5
2065.0 0.212 135.1
2066.0 0.215 136.6
2067.0 0.218 138.1
2068.0 0.220 139.6
2069.0 0.222 141.1
2070.0 0.224 142.5
2071.0 0.225 144.0
2072.0 0.226 145.4
2073.0 0.227 146.8
2074.0 0.227 148.1
2075.0 0.227 149.5
2076.0 0.227 150.9
2077.0 0.226 152.3
2078.0 0.226 153.7
2079.0 0.225 155.1
2080.0 0.224 156.6
2081.0 0.222 158.0
2082.0 0.221 159.4
2083.0 0.219 160.9
2084.0 0.217 162.4
2085.0 0.215 164.0
2086.0 0.213 165.5
2087.0 0.211 167.1
2088.0 0.209 168.7
2089.0 0.207 170.4
2090.0 0.205 172.1
2091.0 0.202 173.8
2092.0 0.200 175.5
2093.0 0.198 177.4
2094.0 0.195 179.2
2095.0 0.193 181.1
2096.0 0.191 183.0
2097.0 0.189 185.0
2098.0 0.186 187.1
2099.0 0.184 189.1
2100.0 0.182 191.3
2101.0 0.181 193.4
2102.0 0.179 195.7
2103.0 0.177 197.9
2104.0 0.176 200.2
2105.0 0.175 202.5
2106.0 0.173 204.9
2107.0 0.172 207.3
2108.0 0.172 209.7
2109.0 0.171 212.1
2110.0 0.171 214.6
2111.0 0.170 217.1
2112.0 0.170 219.5
2113.0 0.171 222.0
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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