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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:55:26
WDS:
HU29
WDS ID/Discoverer
P:
123.980
Orbital period (years)
a:
0.234
Semi-major axis (arcseconds)
i:
64.5
Inclination (degrees)
Ω:
135.8
Longitude of ascending node (degrees)
T:
1939.630
Epoch of periastron passage (year)
e:
0.879
Eccentricity
ω:
349.3
Longitude of periastron (degrees)
Start-Year:
1964.0
Year
End-Year:
2086.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
035936.89-101922.3
Epoch-2000 right ascension and declination
WDS-ID:
03596-1019
WDS designation
Discoverer Code:
HU29
Discover designation and components
ADS number:
2921
Aitken Double Star catalog
HD number:
25164
HD catalog number
Hipparcos number:
18655
Hipparcos catalog number
V1:
8.83
Magnitude of the primary
V2:
9.30
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1997
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 0.397 315.4
-------------------------
1964.0 0.292 302.5
1965.0 0.300 302.9
1966.0 0.307 303.3
1967.0 0.314 303.6
1968.0 0.321 303.9
1969.0 0.327 304.2
1970.0 0.333 304.5
1971.0 0.340 304.8
1972.0 0.345 305.1
1973.0 0.351 305.4
1974.0 0.356 305.6
1975.0 0.362 305.9
1976.0 0.367 306.1
1977.0 0.371 306.4
1978.0 0.376 306.6
1979.0 0.380 306.8
1980.0 0.385 307.1
1981.0 0.389 307.3
1982.0 0.393 307.5
1983.0 0.396 307.7
1984.0 0.400 307.9
1985.0 0.403 308.1
1986.0 0.406 308.3
1987.0 0.409 308.5
1988.0 0.412 308.7
1989.0 0.415 308.9
1990.0 0.417 309.1
1991.0 0.419 309.3
1992.0 0.422 309.4
1993.0 0.423 309.6
1994.0 0.425 309.8
1995.0 0.427 310.0
1996.0 0.428 310.2
1997.0 0.430 310.3
1998.0 0.431 310.5
1999.0 0.432 310.7
2000.0 0.433 310.9
2001.0 0.433 311.0
2002.0 0.434 311.2
2003.0 0.434 311.4
2004.0 0.434 311.6
2005.0 0.434 311.7
2006.0 0.434 311.9
2007.0 0.434 312.1
2008.0 0.433 312.3
2009.0 0.432 312.4
2010.0 0.431 312.6
2011.0 0.430 312.8
2012.0 0.429 313.0
2013.0 0.428 313.1
2014.0 0.426 313.3
2015.0 0.425 313.5
2016.0 0.423 313.7
2017.0 0.421 313.9
2018.0 0.418 314.0
2019.0 0.416 314.2
2020.0 0.413 314.4
2021.0 0.411 314.6
2022.0 0.408 314.8
2023.0 0.404 315.0
2024.0 0.401 315.2
2025.0 0.397 315.4
2026.0 0.394 315.6
2027.0 0.390 315.8
2028.0 0.386 316.1
2029.0 0.381 316.3
2030.0 0.376 316.5
2031.0 0.372 316.7
2032.0 0.367 317.0
2033.0 0.361 317.2
2034.0 0.356 317.5
2035.0 0.350 317.7
2036.0 0.344 318.0
2037.0 0.337 318.3
2038.0 0.331 318.6
2039.0 0.324 318.9
2040.0 0.317 319.2
2041.0 0.309 319.5
2042.0 0.301 319.9
2043.0 0.293 320.3
2044.0 0.284 320.7
2045.0 0.276 321.1
2046.0 0.266 321.5
2047.0 0.256 322.0
2048.0 0.246 322.5
2049.0 0.236 323.1
2050.0 0.224 323.7
2051.0 0.213 324.4
2052.0 0.200 325.1
2053.0 0.187 326.0
2054.0 0.174 327.0
2055.0 0.159 328.2
2056.0 0.144 329.6
2057.0 0.127 331.4
2058.0 0.110 333.7
2059.0 0.091 337.0
2060.0 0.070 342.1
2061.0 0.048 351.7
2062.0 0.026 18.4
2063.0 0.021 97.6
2064.0 0.029 146.7
2065.0 0.024 194.1
2066.0 0.032 240.1
2067.0 0.047 262.5
2068.0 0.064 273.5
2069.0 0.080 279.9
2070.0 0.096 284.1
2071.0 0.111 287.1
2072.0 0.126 289.5
2073.0 0.140 291.3
2074.0 0.153 292.9
2075.0 0.165 294.2
2076.0 0.178 295.3
2077.0 0.189 296.2
2078.0 0.200 297.1
2079.0 0.211 297.9
2080.0 0.222 298.6
2081.0 0.232 299.2
2082.0 0.241 299.8
2083.0 0.251 300.3
2084.0 0.259 300.8
2085.0 0.268 301.3
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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