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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:17:56

Orbital Elements for A802
WDS: A802 WDS ID/Discoverer
P: 269.520 Orbital period (years)
a: 0.26 Semi-major axis (arcseconds)
i: 108.8 Inclination (degrees)
Ω: 125.6 Longitude of ascending node (degrees)
T: 1972.510 Epoch of periastron passage (year)
e: 0.511 Eccentricity
ω: 266.6 Longitude of periastron (degrees)
Start-Year: 1891.0 Year
End-Year: 2159.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A802
Position: 001210.31+464629.7 Epoch-2000 right ascension and declination
WDS-ID: 00122+4647 WDS designation
Discoverer Code: A802 Discover designation and components
ADS number: 149 Aitken Double Star catalog
HD number: 764 HD catalog number
Hipparcos number: 984 Hipparcos catalog number
V1: 9.70 Magnitude of the primary
V2: 10.35 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1991 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A802



WDS 6th Orbit including measures of A802

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


Ephemeris of A802
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.236    113.0
-------------------------
1891.0     0.181    339.4
1892.0     0.183    338.7
1893.0     0.184    337.9
1894.0     0.186    337.2
1895.0     0.188    336.5
1896.0     0.189    335.8
1897.0     0.191    335.1
1898.0     0.193    334.4
1899.0     0.194    333.7
1900.0     0.196    333.1
1901.0     0.197    332.4
1902.0     0.199    331.8
1903.0     0.200    331.2
1904.0     0.202    330.6
1905.0     0.203    329.9
1906.0     0.205    329.3
1907.0     0.206    328.8
1908.0     0.207    328.2
1909.0     0.208    327.6
1910.0     0.210    327.0
1911.0     0.211    326.4
1912.0     0.212    325.9
1913.0     0.213    325.3
1914.0     0.214    324.8
1915.0     0.215    324.2
1916.0     0.216    323.7
1917.0     0.216    323.2
1918.0     0.217    322.6
1919.0     0.218    322.1
1920.0     0.218    321.6
1921.0     0.219    321.1
1922.0     0.219    320.5
1923.0     0.220    320.0
1924.0     0.220    319.5
1925.0     0.220    319.0
1926.0     0.220    318.5
1927.0     0.220    317.9
1928.0     0.220    317.4
1929.0     0.220    316.9
1930.0     0.220    316.4
1931.0     0.219    315.9
1932.0     0.219    315.4
1933.0     0.218    314.8
1934.0     0.217    314.3
1935.0     0.216    313.8
1936.0     0.215    313.2
1937.0     0.214    312.7
1938.0     0.212    312.1
1939.0     0.211    311.6
1940.0     0.209    311.0
1941.0     0.207    310.4
1942.0     0.205    309.8
1943.0     0.203    309.2
1944.0     0.200    308.6
1945.0     0.198    308.0
1946.0     0.195    307.4
1947.0     0.192    306.7
1948.0     0.188    306.0
1949.0     0.185    305.3
1950.0     0.181    304.5
1951.0     0.177    303.7
1952.0     0.173    302.9
1953.0     0.168    302.1
1954.0     0.163    301.1
1955.0     0.158    300.2
1956.0     0.152    299.1
1957.0     0.146    298.0
1958.0     0.140    296.8
1959.0     0.134    295.5
1960.0     0.127    294.0
1961.0     0.120    292.4
1962.0     0.113    290.5
1963.0     0.106    288.4
1964.0     0.098    286.0
1965.0     0.090    283.2
1966.0     0.082    279.8
1967.0     0.074    275.7
1968.0     0.066    270.6
1969.0     0.059    264.2
1970.0     0.052    256.1
1971.0     0.047    245.8
1972.0     0.043    233.2
1973.0     0.041    218.8
1974.0     0.042    204.1
1975.0     0.045    190.7
1976.0     0.050    179.6
1977.0     0.056    170.7
1978.0     0.064    163.7
1979.0     0.071    158.1
1980.0     0.079    153.7
1981.0     0.087    150.1
1982.0     0.095    147.1
1983.0     0.103    144.5
1984.0     0.111    142.3
1985.0     0.118    140.4
1986.0     0.125    138.7
1987.0     0.132    137.2
1988.0     0.139    135.9
1989.0     0.146    134.6
1990.0     0.152    133.5
1991.0     0.158    132.5
1992.0     0.163    131.5
1993.0     0.169    130.6
1994.0     0.174    129.7
1995.0     0.179    128.9
1996.0     0.183    128.1
1997.0     0.188    127.4
1998.0     0.192    126.7
1999.0     0.196    126.1
2000.0     0.199    125.4
2001.0     0.203    124.8
2002.0     0.206    124.2
2003.0     0.209    123.6
2004.0     0.212    123.0
2005.0     0.214    122.5
2006.0     0.217    122.0
2007.0     0.219    121.4
2008.0     0.221    120.9
2009.0     0.223    120.4
2010.0     0.225    119.9
2011.0     0.226    119.4
2012.0     0.228    118.9
2013.0     0.229    118.5
2014.0     0.231    118.0
2015.0     0.232    117.5
2016.0     0.233    117.0
2017.0     0.233    116.6
2018.0     0.234    116.1
2019.0     0.235    115.7
2020.0     0.235    115.2
2021.0     0.236    114.8
2022.0     0.236    114.3
2023.0     0.236    113.9
2024.0     0.236    113.4
2025.0     0.236    113.0
2026.0     0.236    112.5
2027.0     0.236    112.1
2028.0     0.236    111.6
2029.0     0.236    111.2
2030.0     0.235    110.7
2031.0     0.235    110.3
2032.0     0.234    109.8
2033.0     0.234    109.4
2034.0     0.233    108.9
2035.0     0.232    108.4
2036.0     0.231    108.0
2037.0     0.231    107.5
2038.0     0.230    107.0
2039.0     0.229    106.6
2040.0     0.228    106.1
2041.0     0.227    105.6
2042.0     0.226    105.1
2043.0     0.224    104.6
2044.0     0.223    104.1
2045.0     0.222    103.6
2046.0     0.221    103.1
2047.0     0.219    102.6
2048.0     0.218    102.1
2049.0     0.216    101.5
2050.0     0.215    101.0
2051.0     0.214    100.4
2052.0     0.212     99.9
2053.0     0.211     99.3
2054.0     0.209     98.8
2055.0     0.207     98.2
2056.0     0.206     97.6
2057.0     0.204     97.0
2058.0     0.202     96.4
2059.0     0.201     95.8
2060.0     0.199     95.2
2061.0     0.197     94.5
2062.0     0.196     93.9
2063.0     0.194     93.2
2064.0     0.192     92.5
2065.0     0.190     91.9
2066.0     0.189     91.2
2067.0     0.187     90.5
2068.0     0.185     89.7
2069.0     0.183     89.0
2070.0     0.181     88.2
2071.0     0.180     87.5
2072.0     0.178     86.7
2073.0     0.176     85.9
2074.0     0.174     85.1
2075.0     0.172     84.2
2076.0     0.171     83.4
2077.0     0.169     82.5
2078.0     0.167     81.6
2079.0     0.165     80.7
2080.0     0.163     79.8
2081.0     0.162     78.8
2082.0     0.160     77.9
2083.0     0.158     76.9
2084.0     0.157     75.9
2085.0     0.155     74.9
2086.0     0.153     73.8
2087.0     0.152     72.7
2088.0     0.150     71.6
2089.0     0.149     70.5
2090.0     0.147     69.4
2091.0     0.146     68.2
2092.0     0.144     67.0
2093.0     0.143     65.8
2094.0     0.141     64.5
2095.0     0.140     63.3
2096.0     0.139     62.0
2097.0     0.138     60.7
2098.0     0.136     59.4
2099.0     0.135     58.0
2100.0     0.134     56.6
2101.0     0.133     55.2
2102.0     0.132     53.8
2103.0     0.132     52.4
2104.0     0.131     50.9
2105.0     0.130     49.4
2106.0     0.129     48.0
2107.0     0.129     46.5
2108.0     0.128     44.9
2109.0     0.128     43.4
2110.0     0.127     41.9
2111.0     0.127     40.3
2112.0     0.127     38.8
2113.0     0.126     37.2
2114.0     0.126     35.6
2115.0     0.126     34.1
2116.0     0.126     32.5
2117.0     0.126     30.9
2118.0     0.127     29.4
2119.0     0.127     27.8
2120.0     0.127     26.3
2121.0     0.128     24.7
2122.0     0.128     23.2
2123.0     0.129     21.7
2124.0     0.129     20.2
2125.0     0.130     18.7
2126.0     0.131     17.2
2127.0     0.132     15.8
2128.0     0.132     14.3
2129.0     0.133     12.9
2130.0     0.134     11.5
2131.0     0.135     10.2
2132.0     0.137      8.8
2133.0     0.138      7.5
2134.0     0.139      6.2
2135.0     0.140      4.9
2136.0     0.141      3.6
2137.0     0.143      2.4
2138.0     0.144      1.2
2139.0     0.146    360.0
2140.0     0.147    358.8
2141.0     0.149    357.7
2142.0     0.150    356.5
2143.0     0.152    355.4
2144.0     0.153    354.4
2145.0     0.155    353.3
2146.0     0.156    352.3
2147.0     0.158    351.3
2148.0     0.160    350.3
2149.0     0.161    349.3
2150.0     0.163    348.3
2151.0     0.165    347.4
2152.0     0.166    346.5
2153.0     0.168    345.6
2154.0     0.170    344.7
2155.0     0.172    343.9
2156.0     0.173    343.0
2157.0     0.175    342.2
2158.0     0.177    341.4






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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