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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:34:10
WDS:
STF228
WDS ID/Discoverer
P:
145.410
Orbital period (years)
a:
0.89
Semi-major axis (arcseconds)
i:
63.75
Inclination (degrees)
Ω:
99.07
Longitude of ascending node (degrees)
T:
1899.070
Epoch of periastron passage (year)
e:
0.2626
Eccentricity
ω:
322.66
Longitude of periastron (degrees)
Start-Year:
1953.0
Year
End-Year:
2097.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
021402.43+472903.3
Epoch-2000 right ascension and declination
WDS-ID:
02140+4729
WDS designation
Discoverer Code:
STF228
Discover designation and components
ADS number:
1709
Aitken Double Star catalog
HD number:
13594
HD catalog number
Hipparcos number:
10403
Hipparcos catalog number
V1:
6.56
Magnitude of the primary
V2:
7.21
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2015
Date of last observation
Orbit grade:
2
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 0.440 325.1
-------------------------
1953.0 0.614 233.8
1954.0 0.633 236.0
1955.0 0.652 238.0
1956.0 0.671 239.9
1957.0 0.690 241.7
1958.0 0.709 243.5
1959.0 0.729 245.1
1960.0 0.748 246.6
1961.0 0.766 248.1
1962.0 0.785 249.5
1963.0 0.803 250.8
1964.0 0.821 252.1
1965.0 0.838 253.3
1966.0 0.855 254.4
1967.0 0.871 255.6
1968.0 0.887 256.7
1969.0 0.903 257.7
1970.0 0.918 258.7
1971.0 0.932 259.7
1972.0 0.946 260.6
1973.0 0.959 261.6
1974.0 0.972 262.5
1975.0 0.983 263.3
1976.0 0.994 264.2
1977.0 1.005 265.0
1978.0 1.015 265.8
1979.0 1.023 266.7
1980.0 1.032 267.4
1981.0 1.039 268.2
1982.0 1.046 269.0
1983.0 1.051 269.8
1984.0 1.056 270.5
1985.0 1.060 271.3
1986.0 1.063 272.0
1987.0 1.066 272.7
1988.0 1.067 273.5
1989.0 1.068 274.2
1990.0 1.067 274.9
1991.0 1.066 275.7
1992.0 1.063 276.4
1993.0 1.060 277.2
1994.0 1.056 277.9
1995.0 1.051 278.7
1996.0 1.044 279.4
1997.0 1.037 280.2
1998.0 1.029 281.0
1999.0 1.019 281.8
2000.0 1.009 282.6
2001.0 0.997 283.4
2002.0 0.985 284.3
2003.0 0.971 285.2
2004.0 0.956 286.1
2005.0 0.941 287.0
2006.0 0.924 287.9
2007.0 0.906 288.9
2008.0 0.887 290.0
2009.0 0.867 291.1
2010.0 0.846 292.2
2011.0 0.824 293.4
2012.0 0.800 294.7
2013.0 0.776 296.0
2014.0 0.751 297.5
2015.0 0.725 299.0
2016.0 0.699 300.7
2017.0 0.671 302.4
2018.0 0.643 304.4
2019.0 0.614 306.5
2020.0 0.585 308.8
2021.0 0.556 311.4
2022.0 0.526 314.3
2023.0 0.497 317.5
2024.0 0.468 321.1
2025.0 0.440 325.1
2026.0 0.413 329.8
2027.0 0.388 335.0
2028.0 0.366 340.9
2029.0 0.346 347.5
2030.0 0.331 354.8
2031.0 0.321 2.7
2032.0 0.315 11.0
2033.0 0.316 19.5
2034.0 0.322 27.7
2035.0 0.333 35.5
2036.0 0.349 42.8
2037.0 0.368 49.3
2038.0 0.390 55.1
2039.0 0.414 60.3
2040.0 0.439 65.0
2041.0 0.464 69.1
2042.0 0.490 72.7
2043.0 0.515 76.1
2044.0 0.539 79.1
2045.0 0.563 81.8
2046.0 0.584 84.4
2047.0 0.605 86.7
2048.0 0.623 89.0
2049.0 0.639 91.1
2050.0 0.654 93.1
2051.0 0.666 95.0
2052.0 0.676 96.8
2053.0 0.684 98.7
2054.0 0.690 100.4
2055.0 0.693 102.2
2056.0 0.695 103.9
2057.0 0.695 105.6
2058.0 0.692 107.4
2059.0 0.688 109.1
2060.0 0.683 110.9
2061.0 0.676 112.7
2062.0 0.667 114.6
2063.0 0.657 116.5
2064.0 0.646 118.5
2065.0 0.634 120.5
2066.0 0.621 122.6
2067.0 0.607 124.9
2068.0 0.593 127.2
2069.0 0.578 129.6
2070.0 0.563 132.2
2071.0 0.549 134.9
2072.0 0.534 137.8
2073.0 0.519 140.8
2074.0 0.505 144.0
2075.0 0.492 147.3
2076.0 0.480 150.9
2077.0 0.468 154.6
2078.0 0.458 158.5
2079.0 0.450 162.6
2080.0 0.443 166.8
2081.0 0.437 171.1
2082.0 0.434 175.5
2083.0 0.433 180.0
2084.0 0.433 184.5
2085.0 0.436 188.9
2086.0 0.440 193.3
2087.0 0.447 197.5
2088.0 0.455 201.6
2089.0 0.465 205.6
2090.0 0.477 209.4
2091.0 0.489 213.0
2092.0 0.504 216.3
2093.0 0.519 219.6
2094.0 0.535 222.6
2095.0 0.552 225.4
2096.0 0.569 228.1
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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