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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:53:27
WDS:
A1374AB
WDS ID/Discoverer
P:
139.530
Orbital period (years)
a:
0.504
Semi-major axis (arcseconds)
i:
136.7
Inclination (degrees)
Ω:
249.0
Longitude of ascending node (degrees)
T:
1995.810
Epoch of periastron passage (year)
e:
0.806
Eccentricity
ω:
76.0
Longitude of periastron (degrees)
Start-Year:
1956.0
Year
End-Year:
2094.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
180017.93+215347.5
Epoch-2000 right ascension and declination
WDS-ID:
18003+2154
WDS designation
Discoverer Code:
A1374AB
Discover designation and components
ADS number:
10971
Aitken Double Star catalog
HD number:
341480
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
8.9
Magnitude of the primary
V2:
10.9
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2015
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 0.574 24.9
-------------------------
1956.0 0.577 337.1
1957.0 0.571 336.3
1958.0 0.565 335.4
1959.0 0.559 334.5
1960.0 0.552 333.6
1961.0 0.545 332.6
1962.0 0.539 331.7
1963.0 0.532 330.7
1964.0 0.524 329.7
1965.0 0.517 328.6
1966.0 0.509 327.6
1967.0 0.501 326.5
1968.0 0.493 325.3
1969.0 0.485 324.1
1970.0 0.477 322.9
1971.0 0.468 321.6
1972.0 0.459 320.3
1973.0 0.449 319.0
1974.0 0.440 317.5
1975.0 0.430 316.0
1976.0 0.420 314.5
1977.0 0.410 312.8
1978.0 0.399 311.1
1979.0 0.388 309.3
1980.0 0.376 307.3
1981.0 0.364 305.3
1982.0 0.352 303.1
1983.0 0.339 300.7
1984.0 0.325 298.1
1985.0 0.311 295.4
1986.0 0.296 292.3
1987.0 0.281 288.9
1988.0 0.264 285.1
1989.0 0.247 280.8
1990.0 0.227 275.8
1991.0 0.206 269.7
1992.0 0.183 262.3
1993.0 0.156 252.4
1994.0 0.125 238.0
1995.0 0.092 213.3
1996.0 0.072 167.6
1997.0 0.090 120.5
1998.0 0.127 95.6
1999.0 0.164 82.1
2000.0 0.198 73.4
2001.0 0.229 67.2
2002.0 0.256 62.4
2003.0 0.282 58.5
2004.0 0.305 55.2
2005.0 0.326 52.4
2006.0 0.346 49.9
2007.0 0.365 47.6
2008.0 0.382 45.6
2009.0 0.398 43.8
2010.0 0.414 42.0
2011.0 0.429 40.5
2012.0 0.443 39.0
2013.0 0.456 37.6
2014.0 0.468 36.2
2015.0 0.480 35.0
2016.0 0.492 33.8
2017.0 0.502 32.7
2018.0 0.513 31.6
2019.0 0.523 30.5
2020.0 0.532 29.5
2021.0 0.541 28.5
2022.0 0.550 27.6
2023.0 0.558 26.6
2024.0 0.566 25.7
2025.0 0.574 24.9
2026.0 0.581 24.0
2027.0 0.588 23.2
2028.0 0.594 22.4
2029.0 0.601 21.6
2030.0 0.607 20.8
2031.0 0.612 20.1
2032.0 0.618 19.3
2033.0 0.623 18.6
2034.0 0.628 17.9
2035.0 0.633 17.2
2036.0 0.637 16.5
2037.0 0.641 15.8
2038.0 0.645 15.1
2039.0 0.649 14.4
2040.0 0.653 13.7
2041.0 0.656 13.1
2042.0 0.659 12.4
2043.0 0.662 11.8
2044.0 0.665 11.1
2045.0 0.667 10.5
2046.0 0.669 9.9
2047.0 0.672 9.2
2048.0 0.674 8.6
2049.0 0.675 8.0
2050.0 0.677 7.4
2051.0 0.678 6.8
2052.0 0.680 6.2
2053.0 0.681 5.5
2054.0 0.681 4.9
2055.0 0.682 4.3
2056.0 0.683 3.7
2057.0 0.683 3.1
2058.0 0.683 2.5
2059.0 0.683 1.9
2060.0 0.683 1.3
2061.0 0.683 0.7
2062.0 0.682 0.1
2063.0 0.682 359.5
2064.0 0.681 358.9
2065.0 0.680 358.3
2066.0 0.679 357.7
2067.0 0.678 357.0
2068.0 0.676 356.4
2069.0 0.675 355.8
2070.0 0.673 355.2
2071.0 0.671 354.6
2072.0 0.669 353.9
2073.0 0.667 353.3
2074.0 0.665 352.7
2075.0 0.662 352.0
2076.0 0.660 351.4
2077.0 0.657 350.7
2078.0 0.654 350.1
2079.0 0.651 349.4
2080.0 0.648 348.7
2081.0 0.644 348.1
2082.0 0.641 347.4
2083.0 0.637 346.7
2084.0 0.633 346.0
2085.0 0.629 345.3
2086.0 0.625 344.5
2087.0 0.620 343.8
2088.0 0.616 343.1
2089.0 0.611 342.3
2090.0 0.606 341.6
2091.0 0.602 340.8
2092.0 0.596 340.0
2093.0 0.591 339.2
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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