Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:28:38

Orbital Elements for RST33AB
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

Further data from the WDS Sixth Catalog of Orbits for RST33AB
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

Double Star Orbit for RST33AB



WDS 6th Orbit including measures of RST33AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of RST33AB
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






Disclaimer
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.


Acknowledgements
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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