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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:18:02

Orbital Elements for MCA65AA,AB
WDS: MCA65AA,AB WDS ID/Discoverer
P: 161.500 Orbital period (years)
a: 0.208 Semi-major axis (arcseconds)
i: 145.8 Inclination (degrees)
Ω: 205.2 Longitude of ascending node (degrees)
T: 2024.300 Epoch of periastron passage (year)
e: 0.261 Eccentricity
ω: 265.5 Longitude of periastron (degrees)
Start-Year: 1945.0 Year
End-Year: 2105.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA65AA,AB
Position: 205949.55+473115.4 Epoch-2000 right ascension and declination
WDS-ID: 20598+4731 WDS designation
Discoverer Code: MCA65AA,AB Discover designation and components
ADS number: 14526 Aitken Double Star catalog
HD number: 200120 HD catalog number
Hipparcos number: 103632 Hipparcos catalog number
V1: 4.80 Magnitude of the primary
V2: 7.64 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for MCA65AA,AB



WDS 6th Orbit including measures of MCA65AA,AB

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


Ephemeris of MCA65AA,AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.127    297.3
-------------------------
1945.0     0.217    118.3
1946.0     0.217    116.6
1947.0     0.217    115.0
1948.0     0.217    113.4
1949.0     0.216    111.7
1950.0     0.216    110.1
1951.0     0.216    108.4
1952.0     0.216    106.8
1953.0     0.216    105.1
1954.0     0.216    103.5
1955.0     0.216    101.8
1956.0     0.216    100.2
1957.0     0.216     98.5
1958.0     0.216     96.9
1959.0     0.216     95.2
1960.0     0.216     93.6
1961.0     0.216     91.9
1962.0     0.216     90.3
1963.0     0.216     88.6
1964.0     0.216     87.0
1965.0     0.216     85.3
1966.0     0.216     83.6
1967.0     0.216     82.0
1968.0     0.216     80.3
1969.0     0.216     78.7
1970.0     0.216     77.0
1971.0     0.215     75.4
1972.0     0.215     73.7
1973.0     0.215     72.0
1974.0     0.215     70.4
1975.0     0.215     68.7
1976.0     0.215     67.0
1977.0     0.214     65.4
1978.0     0.214     63.7
1979.0     0.214     62.0
1980.0     0.213     60.3
1981.0     0.213     58.6
1982.0     0.212     56.9
1983.0     0.211     55.2
1984.0     0.211     53.5
1985.0     0.210     51.7
1986.0     0.209     50.0
1987.0     0.208     48.2
1988.0     0.207     46.4
1989.0     0.206     44.6
1990.0     0.205     42.8
1991.0     0.204     41.0
1992.0     0.202     39.1
1993.0     0.201     37.2
1994.0     0.199     35.3
1995.0     0.198     33.3
1996.0     0.196     31.3
1997.0     0.194     29.3
1998.0     0.192     27.2
1999.0     0.190     25.1
2000.0     0.188     23.0
2001.0     0.185     20.8
2002.0     0.183     18.5
2003.0     0.180     16.1
2004.0     0.178     13.7
2005.0     0.175     11.3
2006.0     0.172      8.7
2007.0     0.169      6.0
2008.0     0.166      3.3
2009.0     0.163      0.5
2010.0     0.160    357.5
2011.0     0.157    354.4
2012.0     0.154    351.2
2013.0     0.150    347.9
2014.0     0.147    344.4
2015.0     0.144    340.8
2016.0     0.142    337.0
2017.0     0.139    333.1
2018.0     0.136    329.0
2019.0     0.134    324.8
2020.0     0.132    320.5
2021.0     0.130    316.0
2022.0     0.129    311.4
2023.0     0.128    306.8
2024.0     0.127    302.1
2025.0     0.127    297.3
2026.0     0.127    292.6
2027.0     0.128    287.8
2028.0     0.129    283.1
2029.0     0.130    278.6
2030.0     0.132    274.1
2031.0     0.134    269.7
2032.0     0.136    265.5
2033.0     0.139    261.4
2034.0     0.141    257.5
2035.0     0.144    253.7
2036.0     0.147    250.1
2037.0     0.150    246.6
2038.0     0.154    243.2
2039.0     0.157    240.0
2040.0     0.160    237.0
2041.0     0.163    234.0
2042.0     0.167    231.2
2043.0     0.170    228.5
2044.0     0.173    225.9
2045.0     0.176    223.3
2046.0     0.179    220.9
2047.0     0.182    218.5
2048.0     0.185    216.3
2049.0     0.188    214.0
2050.0     0.190    211.9
2051.0     0.193    209.8
2052.0     0.195    207.7
2053.0     0.197    205.7
2054.0     0.199    203.8
2055.0     0.201    201.9
2056.0     0.203    200.0
2057.0     0.205    198.1
2058.0     0.207    196.3
2059.0     0.209    194.5
2060.0     0.210    192.8
2061.0     0.211    191.0
2062.0     0.213    189.3
2063.0     0.214    187.6
2064.0     0.215    186.0
2065.0     0.216    184.3
2066.0     0.217    182.7
2067.0     0.218    181.0
2068.0     0.218    179.4
2069.0     0.219    177.8
2070.0     0.220    176.2
2071.0     0.220    174.6
2072.0     0.221    173.0
2073.0     0.221    171.4
2074.0     0.221    169.9
2075.0     0.222    168.3
2076.0     0.222    166.7
2077.0     0.222    165.2
2078.0     0.222    163.6
2079.0     0.222    162.0
2080.0     0.222    160.5
2081.0     0.222    158.9
2082.0     0.222    157.4
2083.0     0.222    155.8
2084.0     0.222    154.2
2085.0     0.222    152.7
2086.0     0.222    151.1
2087.0     0.221    149.5
2088.0     0.221    148.0
2089.0     0.221    146.4
2090.0     0.221    144.8
2091.0     0.221    143.2
2092.0     0.220    141.6
2093.0     0.220    140.1
2094.0     0.220    138.5
2095.0     0.220    136.9
2096.0     0.219    135.3
2097.0     0.219    133.7
2098.0     0.219    132.1
2099.0     0.219    130.4
2100.0     0.218    128.8
2101.0     0.218    127.2
2102.0     0.218    125.6
2103.0     0.218    124.0
2104.0     0.217    122.3



 

Disclaimer
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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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