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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 16:44:48

Orbital Elements for BU1173AB
WDS: BU1173AB WDS ID/Discoverer
P: 296.960 Orbital period (years)
a: 0.377 Semi-major axis (arcseconds)
i: 76.6 Inclination (degrees)
Ω: 105.5 Longitude of ascending node (degrees)
T: 2029.020 Epoch of periastron passage (year)
e: 0.607 Eccentricity
ω: 70.6 Longitude of periastron (degrees)
Start-Year: 1877.0 Year
End-Year: 2173.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU1173AB
Position: 025835.99+240801.7 Epoch-2000 right ascension and declination
WDS-ID: 02586+2408 WDS designation
Discoverer Code: BU1173AB Discover designation and components
ADS number: 2246 Aitken Double Star catalog
HD number: 18442 HD catalog number
Hipparcos number: 13867 Hipparcos catalog number
V1: 8.30 Magnitude of the primary
V2: 8.35 Magnitude of the secondary
Equinox: Equinox
Date: 2008 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU1173AB



WDS 6th Orbit including measures of BU1173AB

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


Ephemeris of BU1173AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.109    119.0
-------------------------
1877.0     0.251    317.0
1878.0     0.248    317.5
1879.0     0.245    318.0
1880.0     0.242    318.6
1881.0     0.240    319.1
1882.0     0.237    319.7
1883.0     0.234    320.2
1884.0     0.231    320.8
1885.0     0.228    321.4
1886.0     0.225    322.0
1887.0     0.222    322.7
1888.0     0.219    323.3
1889.0     0.216    324.0
1890.0     0.213    324.7
1891.0     0.210    325.4
1892.0     0.207    326.1
1893.0     0.204    326.9
1894.0     0.201    327.7
1895.0     0.199    328.4
1896.0     0.196    329.3
1897.0     0.193    330.1
1898.0     0.190    331.0
1899.0     0.187    331.9
1900.0     0.185    332.8
1901.0     0.182    333.7
1902.0     0.179    334.7
1903.0     0.176    335.7
1904.0     0.174    336.7
1905.0     0.171    337.8
1906.0     0.169    338.9
1907.0     0.166    340.0
1908.0     0.164    341.2
1909.0     0.161    342.4
1910.0     0.159    343.6
1911.0     0.157    344.9
1912.0     0.154    346.2
1913.0     0.152    347.6
1914.0     0.150    349.0
1915.0     0.148    350.4
1916.0     0.146    351.9
1917.0     0.144    353.4
1918.0     0.142    354.9
1919.0     0.141    356.5
1920.0     0.139    358.1
1921.0     0.138    359.8
1922.0     0.136      1.5
1923.0     0.135      3.2
1924.0     0.134      4.9
1925.0     0.133      6.7
1926.0     0.132      8.6
1927.0     0.131     10.4
1928.0     0.130     12.3
1929.0     0.129     14.1
1930.0     0.129     16.0
1931.0     0.129     18.0
1932.0     0.128     19.9
1933.0     0.128     21.8
1934.0     0.128     23.7
1935.0     0.128     25.7
1936.0     0.129     27.6
1937.0     0.129     29.5
1938.0     0.130     31.4
1939.0     0.130     33.3
1940.0     0.131     35.2
1941.0     0.132     37.0
1942.0     0.133     38.8
1943.0     0.134     40.6
1944.0     0.135     42.3
1945.0     0.136     44.1
1946.0     0.138     45.8
1947.0     0.139     47.4
1948.0     0.141     49.0
1949.0     0.142     50.6
1950.0     0.144     52.2
1951.0     0.146     53.7
1952.0     0.148     55.1
1953.0     0.150     56.6
1954.0     0.152     58.0
1955.0     0.154     59.3
1956.0     0.156     60.6
1957.0     0.158     61.9
1958.0     0.160     63.2
1959.0     0.163     64.4
1960.0     0.165     65.6
1961.0     0.167     66.7
1962.0     0.170     67.8
1963.0     0.172     68.9
1964.0     0.174     70.0
1965.0     0.177     71.0
1966.0     0.179     72.0
1967.0     0.182     73.0
1968.0     0.184     73.9
1969.0     0.187     74.9
1970.0     0.189     75.8
1971.0     0.191     76.6
1972.0     0.194     77.5
1973.0     0.196     78.3
1974.0     0.199     79.1
1975.0     0.201     79.9
1976.0     0.203     80.7
1977.0     0.206     81.5
1978.0     0.208     82.2
1979.0     0.210     82.9
1980.0     0.212     83.7
1981.0     0.214     84.3
1982.0     0.216     85.0
1983.0     0.218     85.7
1984.0     0.220     86.4
1985.0     0.222     87.0
1986.0     0.224     87.7
1987.0     0.225     88.3
1988.0     0.227     88.9
1989.0     0.229     89.5
1990.0     0.230     90.1
1991.0     0.231     90.7
1992.0     0.232     91.3
1993.0     0.233     91.9
1994.0     0.234     92.5
1995.0     0.235     93.0
1996.0     0.236     93.6
1997.0     0.236     94.2
1998.0     0.236     94.8
1999.0     0.236     95.3
2000.0     0.236     95.9
2001.0     0.236     96.5
2002.0     0.235     97.0
2003.0     0.235     97.6
2004.0     0.234     98.2
2005.0     0.232     98.8
2006.0     0.231     99.4
2007.0     0.229    100.0
2008.0     0.226    100.6
2009.0     0.224    101.2
2010.0     0.221    101.9
2011.0     0.217    102.5
2012.0     0.213    103.2
2013.0     0.209    103.9
2014.0     0.204    104.7
2015.0     0.199    105.4
2016.0     0.193    106.3
2017.0     0.186    107.2
2018.0     0.179    108.1
2019.0     0.171    109.1
2020.0     0.162    110.3
2021.0     0.153    111.6
2022.0     0.143    113.0
2023.0     0.133    114.7
2024.0     0.121    116.7
2025.0     0.109    119.0
2026.0     0.097    122.0
2027.0     0.084    125.9
2028.0     0.072    131.2
2029.0     0.059    138.7
2030.0     0.048    149.9
2031.0     0.039    167.2
2032.0     0.035    191.0
2033.0     0.038    215.7
2034.0     0.046    234.4
2035.0     0.057    246.7
2036.0     0.069    254.9
2037.0     0.082    260.5
2038.0     0.095    264.5
2039.0     0.108    267.6
2040.0     0.121    270.0
2041.0     0.134    272.0
2042.0     0.146    273.6
2043.0     0.158    275.0
2044.0     0.169    276.2
2045.0     0.180    277.2
2046.0     0.190    278.2
2047.0     0.201    279.0
2048.0     0.210    279.7
2049.0     0.220    280.4
2050.0     0.229    281.1
2051.0     0.237    281.6
2052.0     0.245    282.2
2053.0     0.253    282.7
2054.0     0.261    283.2
2055.0     0.268    283.6
2056.0     0.275    284.1
2057.0     0.282    284.5
2058.0     0.288    284.9
2059.0     0.294    285.2
2060.0     0.300    285.6
2061.0     0.305    285.9
2062.0     0.311    286.3
2063.0     0.316    286.6
2064.0     0.321    286.9
2065.0     0.325    287.2
2066.0     0.330    287.5
2067.0     0.334    287.8
2068.0     0.338    288.1
2069.0     0.342    288.4
2070.0     0.345    288.6
2071.0     0.349    288.9
2072.0     0.352    289.2
2073.0     0.355    289.4
2074.0     0.358    289.7
2075.0     0.361    289.9
2076.0     0.363    290.1
2077.0     0.366    290.4
2078.0     0.368    290.6
2079.0     0.370    290.9
2080.0     0.373    291.1
2081.0     0.374    291.3
2082.0     0.376    291.5
2083.0     0.378    291.8
2084.0     0.380    292.0
2085.0     0.381    292.2
2086.0     0.382    292.4
2087.0     0.383    292.6
2088.0     0.385    292.8
2089.0     0.386    293.1
2090.0     0.387    293.3
2091.0     0.387    293.5
2092.0     0.388    293.7
2093.0     0.389    293.9
2094.0     0.389    294.1
2095.0     0.390    294.3
2096.0     0.390    294.5
2097.0     0.390    294.7
2098.0     0.390    295.0
2099.0     0.390    295.2
2100.0     0.390    295.4
2101.0     0.390    295.6
2102.0     0.390    295.8
2103.0     0.390    296.0
2104.0     0.390    296.2
2105.0     0.389    296.4
2106.0     0.389    296.6
2107.0     0.388    296.8
2108.0     0.388    297.0
2109.0     0.387    297.3
2110.0     0.386    297.5
2111.0     0.386    297.7
2112.0     0.385    297.9
2113.0     0.384    298.1
2114.0     0.383    298.3
2115.0     0.382    298.5
2116.0     0.381    298.8
2117.0     0.380    299.0
2118.0     0.378    299.2
2119.0     0.377    299.4
2120.0     0.376    299.6
2121.0     0.375    299.9
2122.0     0.373    300.1
2123.0     0.372    300.3
2124.0     0.370    300.6
2125.0     0.369    300.8
2126.0     0.367    301.0
2127.0     0.365    301.3
2128.0     0.364    301.5
2129.0     0.362    301.7
2130.0     0.360    302.0
2131.0     0.358    302.2
2132.0     0.357    302.5
2133.0     0.355    302.7
2134.0     0.353    303.0
2135.0     0.351    303.2
2136.0     0.349    303.5
2137.0     0.347    303.8
2138.0     0.345    304.0
2139.0     0.343    304.3
2140.0     0.340    304.6
2141.0     0.338    304.8
2142.0     0.336    305.1
2143.0     0.334    305.4
2144.0     0.331    305.7
2145.0     0.329    306.0
2146.0     0.327    306.3
2147.0     0.324    306.6
2148.0     0.322    306.9
2149.0     0.319    307.2
2150.0     0.317    307.5
2151.0     0.314    307.8
2152.0     0.312    308.1
2153.0     0.309    308.5
2154.0     0.307    308.8
2155.0     0.304    309.1
2156.0     0.302    309.5
2157.0     0.299    309.8
2158.0     0.296    310.2
2159.0     0.294    310.6
2160.0     0.291    310.9
2161.0     0.288    311.3
2162.0     0.285    311.7
2163.0     0.283    312.1
2164.0     0.280    312.5
2165.0     0.277    312.9
2166.0     0.274    313.3
2167.0     0.271    313.8
2168.0     0.269    314.2
2169.0     0.266    314.6
2170.0     0.263    315.1
2171.0     0.260    315.6
2172.0     0.257    316.0



 

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.


www.stella-vega.de