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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:29:43
WDS:
BU1000AB,C
WDS ID/Discoverer
P:
120.880
Orbital period (years)
a:
1.571
Semi-major axis (arcseconds)
i:
36.5
Inclination (degrees)
Ω:
132.5
Longitude of ascending node (degrees)
T:
1955.240
Epoch of periastron passage (year)
e:
0.23
Eccentricity
ω:
54.3
Longitude of periastron (degrees)
Start-Year:
1965.0
Year
End-Year:
2085.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
013500.96-295438.0
Epoch-2000 right ascension and declination
WDS-ID:
01350-2955
WDS designation
Discoverer Code:
BU1000AB,C
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
9770
HD catalog number
Hipparcos number:
7372
Hipparcos catalog number
V1:
7.2
Magnitude of the primary
V2:
11.5
Magnitude of the secondary
Equinox:
Equinox
Date:
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 1.569 20.9
-------------------------
1965.0 1.040 235.0
1966.0 1.060 240.3
1967.0 1.084 245.3
1968.0 1.110 250.1
1969.0 1.140 254.6
1970.0 1.170 258.9
1971.0 1.203 263.0
1972.0 1.236 266.9
1973.0 1.270 270.5
1974.0 1.304 274.0
1975.0 1.339 277.3
1976.0 1.372 280.4
1977.0 1.406 283.4
1978.0 1.438 286.2
1979.0 1.470 289.0
1980.0 1.500 291.6
1981.0 1.529 294.1
1982.0 1.557 296.5
1983.0 1.583 298.8
1984.0 1.608 301.1
1985.0 1.632 303.3
1986.0 1.654 305.4
1987.0 1.674 307.5
1988.0 1.693 309.5
1989.0 1.710 311.5
1990.0 1.726 313.4
1991.0 1.740 315.4
1992.0 1.753 317.2
1993.0 1.764 319.1
1994.0 1.773 320.9
1995.0 1.781 322.8
1996.0 1.788 324.6
1997.0 1.793 326.4
1998.0 1.797 328.1
1999.0 1.800 329.9
2000.0 1.801 331.7
2001.0 1.801 333.5
2002.0 1.800 335.2
2003.0 1.798 337.0
2004.0 1.795 338.8
2005.0 1.790 340.6
2006.0 1.785 342.4
2007.0 1.778 344.2
2008.0 1.771 346.0
2009.0 1.763 347.9
2010.0 1.754 349.7
2011.0 1.745 351.6
2012.0 1.734 353.5
2013.0 1.724 355.4
2014.0 1.712 357.4
2015.0 1.700 359.3
2016.0 1.688 1.4
2017.0 1.675 3.4
2018.0 1.662 5.4
2019.0 1.649 7.5
2020.0 1.636 9.7
2021.0 1.622 11.8
2022.0 1.609 14.0
2023.0 1.596 16.3
2024.0 1.582 18.6
2025.0 1.569 20.9
2026.0 1.556 23.2
2027.0 1.543 25.6
2028.0 1.531 28.1
2029.0 1.519 30.5
2030.0 1.508 33.0
2031.0 1.497 35.6
2032.0 1.486 38.2
2033.0 1.477 40.8
2034.0 1.468 43.5
2035.0 1.459 46.1
2036.0 1.451 48.9
2037.0 1.444 51.6
2038.0 1.438 54.4
2039.0 1.432 57.2
2040.0 1.427 60.0
2041.0 1.423 62.8
2042.0 1.419 65.7
2043.0 1.416 68.5
2044.0 1.413 71.4
2045.0 1.411 74.3
2046.0 1.409 77.2
2047.0 1.408 80.1
2048.0 1.406 83.0
2049.0 1.405 85.9
2050.0 1.404 88.8
2051.0 1.403 91.7
2052.0 1.401 94.6
2053.0 1.400 97.6
2054.0 1.397 100.5
2055.0 1.394 103.5
2056.0 1.391 106.4
2057.0 1.386 109.4
2058.0 1.380 112.4
2059.0 1.373 115.4
2060.0 1.365 118.5
2061.0 1.356 121.6
2062.0 1.344 124.8
2063.0 1.332 128.0
2064.0 1.318 131.3
2065.0 1.302 134.6
2066.0 1.284 138.1
2067.0 1.265 141.6
2068.0 1.245 145.2
2069.0 1.223 149.0
2070.0 1.200 152.9
2071.0 1.177 157.0
2072.0 1.153 161.2
2073.0 1.129 165.7
2074.0 1.105 170.3
2075.0 1.083 175.1
2076.0 1.062 180.1
2077.0 1.043 185.3
2078.0 1.027 190.7
2079.0 1.014 196.2
2080.0 1.005 201.8
2081.0 1.000 207.6
2082.0 0.999 213.3
2083.0 1.003 219.1
2084.0 1.012 224.7
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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