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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:53:27

Orbital Elements for A1374AB
WDS: A1374AB WDS ID/Discoverer
P: 139.530 Orbital period (years)
a: 0.504 Semi-major axis (arcseconds)
i: 136.7 Inclination (degrees)
Ω: 249.0 Longitude of ascending node (degrees)
T: 1995.810 Epoch of periastron passage (year)
e: 0.806 Eccentricity
ω: 76.0 Longitude of periastron (degrees)
Start-Year: 1956.0 Year
End-Year: 2094.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1374AB
Position: 180017.93+215347.5 Epoch-2000 right ascension and declination
WDS-ID: 18003+2154 WDS designation
Discoverer Code: A1374AB Discover designation and components
ADS number: 10971 Aitken Double Star catalog
HD number: 341480 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.9 Magnitude of the primary
V2: 10.9 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A1374AB



WDS 6th Orbit including measures of A1374AB

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


Ephemeris of A1374AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.574     24.9
-------------------------
1956.0     0.577    337.1
1957.0     0.571    336.3
1958.0     0.565    335.4
1959.0     0.559    334.5
1960.0     0.552    333.6
1961.0     0.545    332.6
1962.0     0.539    331.7
1963.0     0.532    330.7
1964.0     0.524    329.7
1965.0     0.517    328.6
1966.0     0.509    327.6
1967.0     0.501    326.5
1968.0     0.493    325.3
1969.0     0.485    324.1
1970.0     0.477    322.9
1971.0     0.468    321.6
1972.0     0.459    320.3
1973.0     0.449    319.0
1974.0     0.440    317.5
1975.0     0.430    316.0
1976.0     0.420    314.5
1977.0     0.410    312.8
1978.0     0.399    311.1
1979.0     0.388    309.3
1980.0     0.376    307.3
1981.0     0.364    305.3
1982.0     0.352    303.1
1983.0     0.339    300.7
1984.0     0.325    298.1
1985.0     0.311    295.4
1986.0     0.296    292.3
1987.0     0.281    288.9
1988.0     0.264    285.1
1989.0     0.247    280.8
1990.0     0.227    275.8
1991.0     0.206    269.7
1992.0     0.183    262.3
1993.0     0.156    252.4
1994.0     0.125    238.0
1995.0     0.092    213.3
1996.0     0.072    167.6
1997.0     0.090    120.5
1998.0     0.127     95.6
1999.0     0.164     82.1
2000.0     0.198     73.4
2001.0     0.229     67.2
2002.0     0.256     62.4
2003.0     0.282     58.5
2004.0     0.305     55.2
2005.0     0.326     52.4
2006.0     0.346     49.9
2007.0     0.365     47.6
2008.0     0.382     45.6
2009.0     0.398     43.8
2010.0     0.414     42.0
2011.0     0.429     40.5
2012.0     0.443     39.0
2013.0     0.456     37.6
2014.0     0.468     36.2
2015.0     0.480     35.0
2016.0     0.492     33.8
2017.0     0.502     32.7
2018.0     0.513     31.6
2019.0     0.523     30.5
2020.0     0.532     29.5
2021.0     0.541     28.5
2022.0     0.550     27.6
2023.0     0.558     26.6
2024.0     0.566     25.7
2025.0     0.574     24.9
2026.0     0.581     24.0
2027.0     0.588     23.2
2028.0     0.594     22.4
2029.0     0.601     21.6
2030.0     0.607     20.8
2031.0     0.612     20.1
2032.0     0.618     19.3
2033.0     0.623     18.6
2034.0     0.628     17.9
2035.0     0.633     17.2
2036.0     0.637     16.5
2037.0     0.641     15.8
2038.0     0.645     15.1
2039.0     0.649     14.4
2040.0     0.653     13.7
2041.0     0.656     13.1
2042.0     0.659     12.4
2043.0     0.662     11.8
2044.0     0.665     11.1
2045.0     0.667     10.5
2046.0     0.669      9.9
2047.0     0.672      9.2
2048.0     0.674      8.6
2049.0     0.675      8.0
2050.0     0.677      7.4
2051.0     0.678      6.8
2052.0     0.680      6.2
2053.0     0.681      5.5
2054.0     0.681      4.9
2055.0     0.682      4.3
2056.0     0.683      3.7
2057.0     0.683      3.1
2058.0     0.683      2.5
2059.0     0.683      1.9
2060.0     0.683      1.3
2061.0     0.683      0.7
2062.0     0.682      0.1
2063.0     0.682    359.5
2064.0     0.681    358.9
2065.0     0.680    358.3
2066.0     0.679    357.7
2067.0     0.678    357.0
2068.0     0.676    356.4
2069.0     0.675    355.8
2070.0     0.673    355.2
2071.0     0.671    354.6
2072.0     0.669    353.9
2073.0     0.667    353.3
2074.0     0.665    352.7
2075.0     0.662    352.0
2076.0     0.660    351.4
2077.0     0.657    350.7
2078.0     0.654    350.1
2079.0     0.651    349.4
2080.0     0.648    348.7
2081.0     0.644    348.1
2082.0     0.641    347.4
2083.0     0.637    346.7
2084.0     0.633    346.0
2085.0     0.629    345.3
2086.0     0.625    344.5
2087.0     0.620    343.8
2088.0     0.616    343.1
2089.0     0.611    342.3
2090.0     0.606    341.6
2091.0     0.602    340.8
2092.0     0.596    340.0
2093.0     0.591    339.2






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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