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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:32:23

Orbital Elements for MCA70AA,AC
WDS: MCA70AA,AC WDS ID/Discoverer
P: 125.000 Orbital period (years)
a: 0.324 Semi-major axis (arcseconds)
i: 54.6 Inclination (degrees)
Ω: 166.1 Longitude of ascending node (degrees)
T: 2028.800 Epoch of periastron passage (year)
e: 0.82 Eccentricity
ω: 26.0 Longitude of periastron (degrees)
Start-Year: 1963.0 Year
End-Year: 2087.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA70AA,AC
Position: 221352.73+394253.7 Epoch-2000 right ascension and declination
WDS-ID: 22139+3943 WDS designation
Discoverer Code: MCA70AA,AC Discover designation and components
ADS number: 15758 Aitken Double Star catalog
HD number: 211073 HD catalog number
Hipparcos number: 109754 Hipparcos catalog number
V1: 4.69 Magnitude of the primary
V2: 8.15 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for MCA70AA,AC



WDS 6th Orbit including measures of MCA70AA,AC

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


Ephemeris of MCA70AA,AC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.079     98.2
-------------------------
1963.0     0.554      0.8
1964.0     0.553      1.1
1965.0     0.552      1.4
1966.0     0.551      1.8
1967.0     0.550      2.1
1968.0     0.548      2.4
1969.0     0.546      2.8
1970.0     0.544      3.1
1971.0     0.542      3.5
1972.0     0.539      3.8
1973.0     0.536      4.1
1974.0     0.533      4.5
1975.0     0.530      4.8
1976.0     0.527      5.2
1977.0     0.523      5.6
1978.0     0.520      5.9
1979.0     0.516      6.3
1980.0     0.511      6.7
1981.0     0.507      7.1
1982.0     0.502      7.5
1983.0     0.497      7.9
1984.0     0.492      8.3
1985.0     0.487      8.7
1986.0     0.481      9.1
1987.0     0.476      9.6
1988.0     0.470     10.0
1989.0     0.464     10.5
1990.0     0.457     11.0
1991.0     0.450     11.4
1992.0     0.444     11.9
1993.0     0.436     12.5
1994.0     0.429     13.0
1995.0     0.421     13.5
1996.0     0.414     14.1
1997.0     0.406     14.7
1998.0     0.397     15.3
1999.0     0.389     16.0
2000.0     0.380     16.7
2001.0     0.371     17.4
2002.0     0.361     18.1
2003.0     0.352     18.9
2004.0     0.342     19.8
2005.0     0.331     20.6
2006.0     0.321     21.6
2007.0     0.310     22.6
2008.0     0.299     23.7
2009.0     0.287     24.8
2010.0     0.276     26.1
2011.0     0.264     27.5
2012.0     0.251     29.0
2013.0     0.239     30.7
2014.0     0.226     32.5
2015.0     0.212     34.6
2016.0     0.199     37.0
2017.0     0.185     39.7
2018.0     0.171     42.9
2019.0     0.156     46.7
2020.0     0.142     51.2
2021.0     0.128     56.7
2022.0     0.114     63.6
2023.0     0.100     72.5
2024.0     0.088     83.8
2025.0     0.079     98.2
2026.0     0.072    115.9
2027.0     0.068    136.3
2028.0     0.064    159.1
2029.0     0.052    189.0
2030.0     0.043    237.8
2031.0     0.057    281.9
2032.0     0.084    303.1
2033.0     0.111    313.9
2034.0     0.137    320.5
2035.0     0.162    325.0
2036.0     0.184    328.3
2037.0     0.206    331.0
2038.0     0.226    333.1
2039.0     0.245    334.9
2040.0     0.263    336.5
2041.0     0.280    337.9
2042.0     0.296    339.1
2043.0     0.311    340.2
2044.0     0.325    341.2
2045.0     0.339    342.1
2046.0     0.352    342.9
2047.0     0.364    343.7
2048.0     0.376    344.4
2049.0     0.387    345.1
2050.0     0.398    345.8
2051.0     0.408    346.4
2052.0     0.418    347.0
2053.0     0.427    347.5
2054.0     0.436    348.1
2055.0     0.445    348.6
2056.0     0.453    349.1
2057.0     0.461    349.6
2058.0     0.468    350.0
2059.0     0.475    350.5
2060.0     0.481    350.9
2061.0     0.488    351.3
2062.0     0.494    351.8
2063.0     0.499    352.2
2064.0     0.505    352.6
2065.0     0.510    353.0
2066.0     0.515    353.3
2067.0     0.519    353.7
2068.0     0.523    354.1
2069.0     0.527    354.4
2070.0     0.531    354.8
2071.0     0.534    355.2
2072.0     0.537    355.5
2073.0     0.540    355.8
2074.0     0.543    356.2
2075.0     0.545    356.5
2076.0     0.547    356.9
2077.0     0.549    357.2
2078.0     0.551    357.5
2079.0     0.552    357.9
2080.0     0.553    358.2
2081.0     0.554    358.5
2082.0     0.555    358.8
2083.0     0.555    359.2
2084.0     0.556    359.5
2085.0     0.556    359.8
2086.0     0.555      0.1






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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