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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:12:48

Orbital Elements for J838
WDS: J838 WDS ID/Discoverer
P: 239.840 Orbital period (years)
a: 7.451 Semi-major axis (arcseconds)
i: 77.6 Inclination (degrees)
Ω: 103.0 Longitude of ascending node (degrees)
T: 1967.510 Epoch of periastron passage (year)
e: 0.784 Eccentricity
ω: 258.1 Longitude of periastron (degrees)
Start-Year: 1906.0 Year
End-Year: 2144.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for J838
Position: 202100.67+102821.0 Epoch-2000 right ascension and declination
WDS-ID: 20210+1028 WDS designation
Discoverer Code: J838 Discover designation and components
ADS number: 13734 Aitken Double Star catalog
HD number: 357347 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 12.5 Magnitude of the primary
V2: 12.6 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1995 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for J838



WDS 6th Orbit including measures of J838

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


Ephemeris of J838
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     6.133    121.3
-------------------------
1906.0     2.750    224.3
1907.0     2.770    225.8
1908.0     2.792    227.2
1909.0     2.814    228.6
1910.0     2.838    230.0
1911.0     2.863    231.4
1912.0     2.889    232.7
1913.0     2.915    234.0
1914.0     2.943    235.3
1915.0     2.971    236.6
1916.0     2.999    237.9
1917.0     3.029    239.1
1918.0     3.059    240.3
1919.0     3.089    241.5
1920.0     3.119    242.6
1921.0     3.150    243.7
1922.0     3.181    244.8
1923.0     3.212    245.9
1924.0     3.243    247.0
1925.0     3.274    248.0
1926.0     3.305    249.1
1927.0     3.336    250.1
1928.0     3.367    251.1
1929.0     3.396    252.0
1930.0     3.426    253.0
1931.0     3.455    253.9
1932.0     3.483    254.9
1933.0     3.510    255.8
1934.0     3.536    256.7
1935.0     3.561    257.5
1936.0     3.585    258.4
1937.0     3.607    259.3
1938.0     3.628    260.1
1939.0     3.646    261.0
1940.0     3.663    261.8
1941.0     3.678    262.6
1942.0     3.690    263.4
1943.0     3.700    264.2
1944.0     3.706    265.1
1945.0     3.710    265.9
1946.0     3.709    266.7
1947.0     3.705    267.5
1948.0     3.696    268.3
1949.0     3.682    269.1
1950.0     3.662    269.9
1951.0     3.635    270.8
1952.0     3.602    271.6
1953.0     3.560    272.5
1954.0     3.509    273.4
1955.0     3.447    274.3
1956.0     3.373    275.2
1957.0     3.284    276.2
1958.0     3.178    277.3
1959.0     3.052    278.4
1960.0     2.902    279.7
1961.0     2.723    281.1
1962.0     2.508    282.7
1963.0     2.251    284.7
1964.0     1.943    287.2
1965.0     1.576    290.8
1966.0     1.150    296.9
1967.0     0.688    310.9
1968.0     0.353      3.1
1969.0     0.603     67.5
1970.0     1.068     84.9
1971.0     1.525     91.7
1972.0     1.943     95.4
1973.0     2.320     97.9
1974.0     2.658     99.7
1975.0     2.961    101.1
1976.0     3.234    102.2
1977.0     3.482    103.2
1978.0     3.707    104.1
1979.0     3.912    104.8
1980.0     4.100    105.5
1981.0     4.273    106.2
1982.0     4.431    106.8
1983.0     4.578    107.3
1984.0     4.713    107.8
1985.0     4.838    108.3
1986.0     4.955    108.8
1987.0     5.062    109.2
1988.0     5.162    109.6
1989.0     5.255    110.0
1990.0     5.342    110.4
1991.0     5.422    110.8
1992.0     5.496    111.2
1993.0     5.565    111.6
1994.0     5.629    111.9
1995.0     5.689    112.3
1996.0     5.744    112.6
1997.0     5.795    112.9
1998.0     5.842    113.3
1999.0     5.885    113.6
2000.0     5.925    113.9
2001.0     5.961    114.2
2002.0     5.995    114.5
2003.0     6.025    114.8
2004.0     6.052    115.1
2005.0     6.077    115.4
2006.0     6.099    115.7
2007.0     6.118    116.0
2008.0     6.135    116.3
2009.0     6.150    116.6
2010.0     6.163    116.9
2011.0     6.173    117.2
2012.0     6.181    117.5
2013.0     6.188    117.8
2014.0     6.192    118.1
2015.0     6.195    118.4
2016.0     6.195    118.7
2017.0     6.195    119.0
2018.0     6.192    119.3
2019.0     6.188    119.5
2020.0     6.182    119.8
2021.0     6.175    120.1
2022.0     6.167    120.4
2023.0     6.157    120.7
2024.0     6.145    121.0
2025.0     6.133    121.3
2026.0     6.119    121.6
2027.0     6.104    121.9
2028.0     6.088    122.2
2029.0     6.070    122.5
2030.0     6.052    122.8
2031.0     6.032    123.1
2032.0     6.012    123.4
2033.0     5.990    123.7
2034.0     5.967    124.0
2035.0     5.944    124.3
2036.0     5.919    124.6
2037.0     5.894    125.0
2038.0     5.867    125.3
2039.0     5.840    125.6
2040.0     5.812    125.9
2041.0     5.783    126.3
2042.0     5.753    126.6
2043.0     5.723    126.9
2044.0     5.692    127.3
2045.0     5.660    127.6
2046.0     5.628    128.0
2047.0     5.594    128.3
2048.0     5.561    128.7
2049.0     5.526    129.0
2050.0     5.491    129.4
2051.0     5.455    129.8
2052.0     5.419    130.2
2053.0     5.382    130.5
2054.0     5.345    130.9
2055.0     5.307    131.3
2056.0     5.269    131.7
2057.0     5.230    132.1
2058.0     5.191    132.5
2059.0     5.151    132.9
2060.0     5.111    133.4
2061.0     5.070    133.8
2062.0     5.029    134.2
2063.0     4.988    134.7
2064.0     4.946    135.1
2065.0     4.904    135.6
2066.0     4.862    136.0
2067.0     4.819    136.5
2068.0     4.776    137.0
2069.0     4.733    137.5
2070.0     4.690    138.0
2071.0     4.646    138.5
2072.0     4.602    139.0
2073.0     4.558    139.6
2074.0     4.514    140.1
2075.0     4.469    140.6
2076.0     4.425    141.2
2077.0     4.380    141.8
2078.0     4.335    142.4
2079.0     4.291    143.0
2080.0     4.246    143.6
2081.0     4.201    144.2
2082.0     4.156    144.8
2083.0     4.111    145.5
2084.0     4.066    146.1
2085.0     4.022    146.8
2086.0     3.977    147.5
2087.0     3.932    148.2
2088.0     3.888    149.0
2089.0     3.844    149.7
2090.0     3.800    150.5
2091.0     3.756    151.2
2092.0     3.712    152.0
2093.0     3.669    152.8
2094.0     3.626    153.7
2095.0     3.584    154.5
2096.0     3.541    155.4
2097.0     3.500    156.3
2098.0     3.458    157.2
2099.0     3.417    158.2
2100.0     3.377    159.1
2101.0     3.337    160.1
2102.0     3.298    161.1
2103.0     3.259    162.2
2104.0     3.222    163.2
2105.0     3.184    164.3
2106.0     3.148    165.4
2107.0     3.112    166.5
2108.0     3.078    167.7
2109.0     3.044    168.9
2110.0     3.011    170.1
2111.0     2.979    171.3
2112.0     2.948    172.6
2113.0     2.918    173.9
2114.0     2.890    175.2
2115.0     2.862    176.6
2116.0     2.836    177.9
2117.0     2.811    179.3
2118.0     2.787    180.7
2119.0     2.765    182.2
2120.0     2.744    183.6
2121.0     2.724    185.1
2122.0     2.706    186.6
2123.0     2.689    188.2
2124.0     2.674    189.7
2125.0     2.661    191.3
2126.0     2.649    192.8
2127.0     2.639    194.4
2128.0     2.630    196.0
2129.0     2.623    197.6
2130.0     2.618    199.3
2131.0     2.614    200.9
2132.0     2.612    202.5
2133.0     2.612    204.1
2134.0     2.613    205.8
2135.0     2.616    207.4
2136.0     2.621    209.0
2137.0     2.628    210.6
2138.0     2.636    212.2
2139.0     2.645    213.8
2140.0     2.656    215.4
2141.0     2.669    217.0
2142.0     2.683    218.5
2143.0     2.698    220.1






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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