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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:28:38
WDS:
RST33AB
WDS ID/Discoverer
P:
175.338
Orbital period (years)
a:
0.91477
Semi-major axis (arcseconds)
i:
123.438
Inclination (degrees)
Ω:
155.63
Longitude of ascending node (degrees)
T:
1951.475
Epoch of periastron passage (year)
e:
0.79785
Eccentricity
ω:
67.124
Longitude of periastron (degrees)
Start-Year:
1938.0
Year
End-Year:
2112.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
012556.10-475355.9
Epoch-2000 right ascension and declination
WDS-ID:
01259-4754
WDS designation
Discoverer Code:
RST33AB
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
8821
HD catalog number
Hipparcos number:
6693
Hipparcos catalog number
V1:
8.13
Magnitude of the primary
V2:
9.77
Magnitude of the secondary
Equinox:
Equinox
Date:
2010
Date of last observation
Orbit grade:
4
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 1.097 290.0
-------------------------
1938.0 0.455 202.1
1939.0 0.443 199.3
1940.0 0.431 196.3
1941.0 0.419 193.2
1942.0 0.405 189.8
1943.0 0.391 186.2
1944.0 0.375 182.3
1945.0 0.356 178.0
1946.0 0.335 173.3
1947.0 0.310 167.8
1948.0 0.279 161.2
1949.0 0.241 152.8
1950.0 0.194 140.7
1951.0 0.140 119.6
1952.0 0.105 78.4
1953.0 0.129 32.8
1954.0 0.188 8.9
1955.0 0.250 356.7
1956.0 0.308 349.4
1957.0 0.362 344.3
1958.0 0.410 340.4
1959.0 0.455 337.4
1960.0 0.495 334.8
1961.0 0.532 332.7
1962.0 0.567 330.8
1963.0 0.599 329.1
1964.0 0.629 327.6
1965.0 0.657 326.2
1966.0 0.683 324.9
1967.0 0.708 323.8
1968.0 0.731 322.7
1969.0 0.753 321.6
1970.0 0.774 320.6
1971.0 0.794 319.7
1972.0 0.813 318.8
1973.0 0.830 318.0
1974.0 0.847 317.2
1975.0 0.863 316.4
1976.0 0.878 315.6
1977.0 0.893 314.9
1978.0 0.906 314.2
1979.0 0.919 313.5
1980.0 0.932 312.9
1981.0 0.944 312.2
1982.0 0.955 311.6
1983.0 0.966 311.0
1984.0 0.976 310.3
1985.0 0.985 309.8
1986.0 0.994 309.2
1987.0 1.003 308.6
1988.0 1.011 308.0
1989.0 1.019 307.5
1990.0 1.027 306.9
1991.0 1.034 306.4
1992.0 1.040 305.9
1993.0 1.046 305.3
1994.0 1.052 304.8
1995.0 1.058 304.3
1996.0 1.063 303.8
1997.0 1.068 303.3
1998.0 1.072 302.8
1999.0 1.077 302.3
2000.0 1.080 301.8
2001.0 1.084 301.3
2002.0 1.087 300.9
2003.0 1.090 300.4
2004.0 1.093 299.9
2005.0 1.096 299.4
2006.0 1.098 298.9
2007.0 1.100 298.5
2008.0 1.102 298.0
2009.0 1.103 297.5
2010.0 1.104 297.1
2011.0 1.105 296.6
2012.0 1.106 296.1
2013.0 1.106 295.7
2014.0 1.107 295.2
2015.0 1.107 294.7
2016.0 1.107 294.3
2017.0 1.106 293.8
2018.0 1.106 293.3
2019.0 1.105 292.9
2020.0 1.104 292.4
2021.0 1.103 291.9
2022.0 1.102 291.5
2023.0 1.100 291.0
2024.0 1.098 290.5
2025.0 1.097 290.0
2026.0 1.094 289.6
2027.0 1.092 289.1
2028.0 1.090 288.6
2029.0 1.087 288.1
2030.0 1.084 287.6
2031.0 1.081 287.2
2032.0 1.078 286.7
2033.0 1.075 286.2
2034.0 1.072 285.7
2035.0 1.068 285.2
2036.0 1.064 284.7
2037.0 1.060 284.2
2038.0 1.056 283.7
2039.0 1.052 283.1
2040.0 1.048 282.6
2041.0 1.043 282.1
2042.0 1.039 281.6
2043.0 1.034 281.0
2044.0 1.029 280.5
2045.0 1.024 280.0
2046.0 1.019 279.4
2047.0 1.014 278.9
2048.0 1.008 278.3
2049.0 1.003 277.7
2050.0 0.997 277.2
2051.0 0.991 276.6
2052.0 0.985 276.0
2053.0 0.979 275.4
2054.0 0.973 274.8
2055.0 0.966 274.2
2056.0 0.960 273.6
2057.0 0.953 273.0
2058.0 0.947 272.3
2059.0 0.940 271.7
2060.0 0.933 271.1
2061.0 0.926 270.4
2062.0 0.919 269.7
2063.0 0.912 269.0
2064.0 0.904 268.3
2065.0 0.897 267.6
2066.0 0.889 266.9
2067.0 0.882 266.2
2068.0 0.874 265.5
2069.0 0.866 264.7
2070.0 0.858 263.9
2071.0 0.850 263.2
2072.0 0.842 262.4
2073.0 0.834 261.5
2074.0 0.826 260.7
2075.0 0.817 259.9
2076.0 0.809 259.0
2077.0 0.800 258.1
2078.0 0.792 257.2
2079.0 0.783 256.3
2080.0 0.774 255.4
2081.0 0.766 254.4
2082.0 0.757 253.4
2083.0 0.748 252.4
2084.0 0.739 251.4
2085.0 0.730 250.3
2086.0 0.721 249.2
2087.0 0.711 248.1
2088.0 0.702 247.0
2089.0 0.693 245.8
2090.0 0.684 244.6
2091.0 0.674 243.4
2092.0 0.665 242.1
2093.0 0.655 240.8
2094.0 0.646 239.4
2095.0 0.636 238.0
2096.0 0.627 236.6
2097.0 0.617 235.1
2098.0 0.608 233.6
2099.0 0.598 232.0
2100.0 0.589 230.4
2101.0 0.579 228.7
2102.0 0.569 227.0
2103.0 0.560 225.2
2104.0 0.550 223.4
2105.0 0.540 221.4
2106.0 0.530 219.5
2107.0 0.520 217.4
2108.0 0.510 215.2
2109.0 0.500 213.0
2110.0 0.490 210.7
2111.0 0.480 208.2
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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