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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:55:07

Orbital Elements for A1831BC
WDS: A1831BC WDS ID/Discoverer
P: 216.020 Orbital period (years)
a: 0.187 Semi-major axis (arcseconds)
i: 56.0 Inclination (degrees)
Ω: 231.8 Longitude of ascending node (degrees)
T: 1986.200 Epoch of periastron passage (year)
e: 0.099 Eccentricity
ω: 300.1 Longitude of periastron (degrees)
Start-Year: 1917.0 Year
End-Year: 2133.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1831BC
Position: 035427.09+051128.2 Epoch-2000 right ascension and declination
WDS-ID: 03545+0510 WDS designation
Discoverer Code: A1831BC Discover designation and components
ADS number: 2849 Aitken Double Star catalog
HD number: 24550 HD catalog number
Hipparcos number: 18264 Hipparcos catalog number
V1: 9.38 Magnitude of the primary
V2: 10.35 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A1831BC



WDS 6th Orbit including measures of A1831BC

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


Ephemeris of A1831BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.176    240.6
-------------------------
1917.0     0.196     49.0
1918.0     0.196     49.9
1919.0     0.195     50.7
1920.0     0.195     51.6
1921.0     0.194     52.4
1922.0     0.194     53.3
1923.0     0.193     54.2
1924.0     0.192     55.0
1925.0     0.191     55.9
1926.0     0.190     56.8
1927.0     0.189     57.7
1928.0     0.188     58.6
1929.0     0.187     59.5
1930.0     0.185     60.5
1931.0     0.184     61.4
1932.0     0.182     62.4
1933.0     0.181     63.4
1934.0     0.179     64.4
1935.0     0.177     65.4
1936.0     0.175     66.5
1937.0     0.173     67.5
1938.0     0.171     68.6
1939.0     0.168     69.8
1940.0     0.166     70.9
1941.0     0.164     72.1
1942.0     0.161     73.4
1943.0     0.159     74.6
1944.0     0.156     75.9
1945.0     0.153     77.3
1946.0     0.151     78.7
1947.0     0.148     80.1
1948.0     0.145     81.7
1949.0     0.142     83.2
1950.0     0.139     84.9
1951.0     0.137     86.6
1952.0     0.134     88.3
1953.0     0.131     90.2
1954.0     0.128     92.1
1955.0     0.125     94.2
1956.0     0.122     96.3
1957.0     0.120     98.5
1958.0     0.117    100.8
1959.0     0.114    103.2
1960.0     0.112    105.8
1961.0     0.109    108.4
1962.0     0.107    111.2
1963.0     0.105    114.1
1964.0     0.103    117.1
1965.0     0.101    120.2
1966.0     0.100    123.4
1967.0     0.098    126.7
1968.0     0.097    130.1
1969.0     0.096    133.5
1970.0     0.096    137.0
1971.0     0.095    140.6
1972.0     0.095    144.1
1973.0     0.095    147.7
1974.0     0.096    151.2
1975.0     0.097    154.8
1976.0     0.097    158.2
1977.0     0.099    161.6
1978.0     0.100    164.9
1979.0     0.102    168.1
1980.0     0.103    171.1
1981.0     0.105    174.1
1982.0     0.107    177.0
1983.0     0.110    179.8
1984.0     0.112    182.4
1985.0     0.114    184.9
1986.0     0.117    187.4
1987.0     0.119    189.7
1988.0     0.122    191.9
1989.0     0.125    194.0
1990.0     0.127    196.1
1991.0     0.130    198.0
1992.0     0.133    199.9
1993.0     0.136    201.7
1994.0     0.138    203.4
1995.0     0.141    205.1
1996.0     0.143    206.7
1997.0     0.146    208.2
1998.0     0.148    209.7
1999.0     0.151    211.2
2000.0     0.153    212.6
2001.0     0.155    214.0
2002.0     0.157    215.3
2003.0     0.159    216.6
2004.0     0.161    217.8
2005.0     0.163    219.1
2006.0     0.165    220.3
2007.0     0.167    221.5
2008.0     0.168    222.6
2009.0     0.170    223.8
2010.0     0.171    224.9
2011.0     0.172    226.0
2012.0     0.173    227.1
2013.0     0.174    228.1
2014.0     0.175    229.2
2015.0     0.176    230.3
2016.0     0.176    231.3
2017.0     0.177    232.3
2018.0     0.177    233.4
2019.0     0.177    234.4
2020.0     0.177    235.5
2021.0     0.177    236.5
2022.0     0.177    237.5
2023.0     0.177    238.5
2024.0     0.177    239.6
2025.0     0.176    240.6
2026.0     0.176    241.7
2027.0     0.175    242.7
2028.0     0.174    243.8
2029.0     0.173    244.9
2030.0     0.172    246.0
2031.0     0.171    247.1
2032.0     0.170    248.2
2033.0     0.169    249.3
2034.0     0.168    250.4
2035.0     0.166    251.6
2036.0     0.165    252.8
2037.0     0.163    254.0
2038.0     0.162    255.2
2039.0     0.160    256.5
2040.0     0.158    257.8
2041.0     0.157    259.1
2042.0     0.155    260.4
2043.0     0.153    261.8
2044.0     0.151    263.2
2045.0     0.149    264.6
2046.0     0.147    266.1
2047.0     0.145    267.6
2048.0     0.143    269.2
2049.0     0.141    270.8
2050.0     0.139    272.4
2051.0     0.138    274.1
2052.0     0.136    275.8
2053.0     0.134    277.6
2054.0     0.132    279.5
2055.0     0.130    281.4
2056.0     0.128    283.3
2057.0     0.127    285.3
2058.0     0.125    287.3
2059.0     0.123    289.4
2060.0     0.122    291.6
2061.0     0.121    293.8
2062.0     0.119    296.1
2063.0     0.118    298.4
2064.0     0.117    300.7
2065.0     0.116    303.1
2066.0     0.115    305.5
2067.0     0.115    308.0
2068.0     0.114    310.4
2069.0     0.114    312.9
2070.0     0.113    315.5
2071.0     0.113    318.0
2072.0     0.113    320.5
2073.0     0.113    323.1
2074.0     0.114    325.6
2075.0     0.114    328.1
2076.0     0.115    330.6
2077.0     0.115    333.0
2078.0     0.116    335.4
2079.0     0.117    337.8
2080.0     0.118    340.1
2081.0     0.120    342.4
2082.0     0.121    344.7
2083.0     0.122    346.9
2084.0     0.124    349.0
2085.0     0.125    351.1
2086.0     0.127    353.1
2087.0     0.129    355.1
2088.0     0.131    357.1
2089.0     0.133    358.9
2090.0     0.135      0.7
2091.0     0.137      2.5
2092.0     0.139      4.2
2093.0     0.141      5.9
2094.0     0.143      7.5
2095.0     0.145      9.1
2096.0     0.147     10.6
2097.0     0.149     12.1
2098.0     0.151     13.5
2099.0     0.153     14.9
2100.0     0.156     16.3
2101.0     0.158     17.6
2102.0     0.160     18.9
2103.0     0.162     20.1
2104.0     0.164     21.4
2105.0     0.166     22.5
2106.0     0.168     23.7
2107.0     0.170     24.8
2108.0     0.172     26.0
2109.0     0.173     27.1
2110.0     0.175     28.1
2111.0     0.177     29.2
2112.0     0.179     30.2
2113.0     0.180     31.2
2114.0     0.182     32.2
2115.0     0.183     33.2
2116.0     0.185     34.1
2117.0     0.186     35.1
2118.0     0.187     36.0
2119.0     0.188     36.9
2120.0     0.190     37.8
2121.0     0.191     38.7
2122.0     0.191     39.6
2123.0     0.192     40.5
2124.0     0.193     41.4
2125.0     0.194     42.2
2126.0     0.194     43.1
2127.0     0.195     43.9
2128.0     0.195     44.8
2129.0     0.196     45.6
2130.0     0.196     46.5
2131.0     0.196     47.3
2132.0     0.196     48.2






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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