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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:44:45
WDS:
A2413
WDS ID/Discoverer
P:
126.900
Orbital period (years)
a:
0.658
Semi-major axis (arcseconds)
i:
71.2
Inclination (degrees)
Ω:
184.8
Longitude of ascending node (degrees)
T:
1930.500
Epoch of periastron passage (year)
e:
0.458
Eccentricity
ω:
102.6
Longitude of periastron (degrees)
Start-Year:
1962.0
Year
End-Year:
2088.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
025714.90+015315.3
Epoch-2000 right ascension and declination
WDS-ID:
02572+0153
WDS designation
Discoverer Code:
A2413
Discover designation and components
ADS number:
2236
Aitken Double Star catalog
HD number:
18368
HD catalog number
Hipparcos number:
13773
Hipparcos catalog number
V1:
8.28
Magnitude of the primary
V2:
8.62
Magnitude of the secondary
Equinox:
Equinox
Date:
2019
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 0.659 171.9
-------------------------
1962.0 0.455 33.0
1963.0 0.445 34.7
1964.0 0.435 36.5
1965.0 0.424 38.4
1966.0 0.414 40.4
1967.0 0.404 42.6
1968.0 0.394 44.8
1969.0 0.383 47.1
1970.0 0.374 49.6
1971.0 0.364 52.1
1972.0 0.355 54.9
1973.0 0.346 57.7
1974.0 0.338 60.7
1975.0 0.331 63.9
1976.0 0.324 67.2
1977.0 0.318 70.6
1978.0 0.313 74.1
1979.0 0.309 77.8
1980.0 0.306 81.5
1981.0 0.303 85.3
1982.0 0.302 89.1
1983.0 0.303 93.0
1984.0 0.304 96.8
1985.0 0.306 100.6
1986.0 0.309 104.3
1987.0 0.314 108.0
1988.0 0.319 111.5
1989.0 0.325 114.9
1990.0 0.333 118.1
1991.0 0.340 121.2
1992.0 0.349 124.2
1993.0 0.358 127.0
1994.0 0.368 129.7
1995.0 0.378 132.2
1996.0 0.388 134.6
1997.0 0.399 136.9
1998.0 0.410 139.0
1999.0 0.422 141.1
2000.0 0.433 143.0
2001.0 0.445 144.8
2002.0 0.457 146.5
2003.0 0.468 148.2
2004.0 0.480 149.7
2005.0 0.492 151.2
2006.0 0.503 152.7
2007.0 0.515 154.0
2008.0 0.526 155.3
2009.0 0.537 156.6
2010.0 0.548 157.8
2011.0 0.559 158.9
2012.0 0.569 160.0
2013.0 0.579 161.1
2014.0 0.588 162.1
2015.0 0.597 163.1
2016.0 0.606 164.1
2017.0 0.614 165.0
2018.0 0.622 166.0
2019.0 0.629 166.9
2020.0 0.636 167.7
2021.0 0.642 168.6
2022.0 0.647 169.4
2023.0 0.652 170.3
2024.0 0.656 171.1
2025.0 0.659 171.9
2026.0 0.662 172.7
2027.0 0.663 173.5
2028.0 0.664 174.3
2029.0 0.664 175.1
2030.0 0.662 175.9
2031.0 0.660 176.7
2032.0 0.656 177.5
2033.0 0.652 178.4
2034.0 0.646 179.2
2035.0 0.638 180.0
2036.0 0.629 180.9
2037.0 0.619 181.8
2038.0 0.607 182.8
2039.0 0.594 183.7
2040.0 0.578 184.8
2041.0 0.561 185.8
2042.0 0.542 187.0
2043.0 0.520 188.2
2044.0 0.497 189.6
2045.0 0.471 191.1
2046.0 0.443 192.8
2047.0 0.412 194.7
2048.0 0.379 197.0
2049.0 0.344 199.7
2050.0 0.307 203.0
2051.0 0.268 207.3
2052.0 0.228 213.0
2053.0 0.189 221.2
2054.0 0.153 233.4
2055.0 0.126 252.0
2056.0 0.116 276.8
2057.0 0.127 301.4
2058.0 0.154 319.6
2059.0 0.190 331.6
2060.0 0.229 339.7
2061.0 0.267 345.5
2062.0 0.304 349.8
2063.0 0.338 353.2
2064.0 0.370 356.0
2065.0 0.398 358.4
2066.0 0.424 0.5
2067.0 0.446 2.4
2068.0 0.465 4.1
2069.0 0.481 5.6
2070.0 0.495 7.1
2071.0 0.506 8.5
2072.0 0.515 9.9
2073.0 0.521 11.2
2074.0 0.526 12.5
2075.0 0.529 13.7
2076.0 0.531 15.0
2077.0 0.530 16.2
2078.0 0.529 17.5
2079.0 0.526 18.7
2080.0 0.523 20.0
2081.0 0.518 21.3
2082.0 0.512 22.6
2083.0 0.505 24.0
2084.0 0.498 25.4
2085.0 0.490 26.8
2086.0 0.482 28.3
2087.0 0.473 29.9
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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