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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:38:43

Orbital Elements for B872
WDS: B872 WDS ID/Discoverer
P: 179.400 Orbital period (years)
a: 0.398 Semi-major axis (arcseconds)
i: 108.6 Inclination (degrees)
Ω: 132.9 Longitude of ascending node (degrees)
T: 1977.700 Epoch of periastron passage (year)
e: 0.508 Eccentricity
ω: 146.3 Longitude of periastron (degrees)
Start-Year: 1936.0 Year
End-Year: 2114.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B872
Position: 162726.22-372837.0 Epoch-2000 right ascension and declination
WDS-ID: 16274-3729 WDS designation
Discoverer Code: B872 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 148121 HD catalog number
Hipparcos number: 80603 Hipparcos catalog number
V1: 9.33 Magnitude of the primary
V2: 9.68 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for B872



WDS 6th Orbit including measures of B872

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


Ephemeris of B872
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.226    174.3
-------------------------
1936.0     0.465    129.9
1937.0     0.457    129.5
1938.0     0.450    129.1
1939.0     0.442    128.6
1940.0     0.434    128.2
1941.0     0.425    127.7
1942.0     0.416    127.2
1943.0     0.407    126.7
1944.0     0.398    126.2
1945.0     0.388    125.6
1946.0     0.377    125.0
1947.0     0.367    124.4
1948.0     0.355    123.7
1949.0     0.344    123.0
1950.0     0.332    122.2
1951.0     0.320    121.4
1952.0     0.307    120.5
1953.0     0.294    119.5
1954.0     0.280    118.5
1955.0     0.266    117.3
1956.0     0.252    116.0
1957.0     0.237    114.5
1958.0     0.222    112.9
1959.0     0.206    111.0
1960.0     0.190    108.7
1961.0     0.175    106.1
1962.0     0.158    103.0
1963.0     0.142     99.1
1964.0     0.127     94.3
1965.0     0.112     88.1
1966.0     0.098     80.1
1967.0     0.086     69.6
1968.0     0.077     56.4
1969.0     0.073     40.8
1970.0     0.074     24.6
1971.0     0.081      9.9
1972.0     0.091    357.9
1973.0     0.103    348.6
1974.0     0.117    341.4
1975.0     0.131    335.6
1976.0     0.145    331.0
1977.0     0.158    327.2
1978.0     0.170    324.0
1979.0     0.181    321.1
1980.0     0.190    318.6
1981.0     0.198    316.3
1982.0     0.204    314.2
1983.0     0.209    312.1
1984.0     0.212    310.2
1985.0     0.214    308.2
1986.0     0.215    306.3
1987.0     0.214    304.4
1988.0     0.212    302.5
1989.0     0.210    300.6
1990.0     0.206    298.5
1991.0     0.202    296.4
1992.0     0.197    294.3
1993.0     0.192    291.9
1994.0     0.186    289.5
1995.0     0.181    286.9
1996.0     0.175    284.2
1997.0     0.169    281.2
1998.0     0.163    278.0
1999.0     0.157    274.6
2000.0     0.152    270.9
2001.0     0.146    267.0
2002.0     0.142    262.8
2003.0     0.138    258.3
2004.0     0.134    253.6
2005.0     0.132    248.6
2006.0     0.130    243.5
2007.0     0.129    238.3
2008.0     0.129    233.0
2009.0     0.129    227.7
2010.0     0.131    222.6
2011.0     0.134    217.6
2012.0     0.137    212.9
2013.0     0.142    208.4
2014.0     0.147    204.2
2015.0     0.152    200.3
2016.0     0.158    196.6
2017.0     0.165    193.3
2018.0     0.172    190.2
2019.0     0.179    187.3
2020.0     0.186    184.7
2021.0     0.194    182.3
2022.0     0.202    180.1
2023.0     0.210    178.0
2024.0     0.218    176.1
2025.0     0.226    174.3
2026.0     0.235    172.7
2027.0     0.243    171.2
2028.0     0.251    169.7
2029.0     0.260    168.4
2030.0     0.268    167.1
2031.0     0.276    166.0
2032.0     0.285    164.9
2033.0     0.293    163.8
2034.0     0.301    162.8
2035.0     0.309    161.9
2036.0     0.317    161.0
2037.0     0.325    160.1
2038.0     0.333    159.3
2039.0     0.341    158.6
2040.0     0.349    157.8
2041.0     0.356    157.1
2042.0     0.364    156.5
2043.0     0.371    155.8
2044.0     0.378    155.2
2045.0     0.386    154.6
2046.0     0.393    154.0
2047.0     0.400    153.5
2048.0     0.406    152.9
2049.0     0.413    152.4
2050.0     0.420    151.9
2051.0     0.426    151.4
2052.0     0.432    150.9
2053.0     0.438    150.5
2054.0     0.444    150.0
2055.0     0.450    149.6
2056.0     0.456    149.2
2057.0     0.462    148.7
2058.0     0.467    148.3
2059.0     0.472    147.9
2060.0     0.477    147.6
2061.0     0.482    147.2
2062.0     0.487    146.8
2063.0     0.492    146.4
2064.0     0.496    146.1
2065.0     0.501    145.7
2066.0     0.505    145.4
2067.0     0.509    145.0
2068.0     0.513    144.7
2069.0     0.516    144.4
2070.0     0.520    144.1
2071.0     0.523    143.7
2072.0     0.527    143.4
2073.0     0.530    143.1
2074.0     0.532    142.8
2075.0     0.535    142.5
2076.0     0.538    142.2
2077.0     0.540    141.9
2078.0     0.542    141.6
2079.0     0.544    141.3
2080.0     0.546    141.0
2081.0     0.547    140.7
2082.0     0.549    140.4
2083.0     0.550    140.1
2084.0     0.551    139.8
2085.0     0.552    139.5
2086.0     0.552    139.3
2087.0     0.552    139.0
2088.0     0.553    138.7
2089.0     0.553    138.4
2090.0     0.552    138.1
2091.0     0.552    137.8
2092.0     0.551    137.5
2093.0     0.550    137.3
2094.0     0.549    137.0
2095.0     0.548    136.7
2096.0     0.546    136.4
2097.0     0.544    136.1
2098.0     0.542    135.8
2099.0     0.540    135.5
2100.0     0.537    135.2
2101.0     0.535    134.9
2102.0     0.532    134.6
2103.0     0.528    134.3
2104.0     0.525    134.0
2105.0     0.521    133.6
2106.0     0.517    133.3
2107.0     0.513    133.0
2108.0     0.508    132.6
2109.0     0.503    132.3
2110.0     0.498    132.0
2111.0     0.492    131.6
2112.0     0.487    131.2
2113.0     0.480    130.9






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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