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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:15:40

Orbital Elements for LDS720BC
WDS: LDS720BC WDS ID/Discoverer
P: 141.390 Orbital period (years)
a: 2.616 Semi-major axis (arcseconds)
i: 148.4 Inclination (degrees)
Ω: 82.6 Longitude of ascending node (degrees)
T: 2035.100 Epoch of periastron passage (year)
e: 0.607 Eccentricity
ω: 54.6 Longitude of periastron (degrees)
Start-Year: 1955.0 Year
End-Year: 2095.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for LDS720BC
Position: 204151.16-322606.7 Epoch-2000 right ascension and declination
WDS-ID: 20452-3120 WDS designation
Discoverer Code: LDS720BC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 196982 HD catalog number
Hipparcos number: 102141 Hipparcos catalog number
V1: 11.36 Magnitude of the primary
V2: 11.49 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2012 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for LDS720BC



WDS 6th Orbit including measures of LDS720BC

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


Ephemeris of LDS720BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.593    115.1
-------------------------
1955.0     3.831    220.0
1956.0     3.833    219.2
1957.0     3.833    218.4
1958.0     3.832    217.6
1959.0     3.830    216.8
1960.0     3.827    216.0
1961.0     3.823    215.2
1962.0     3.818    214.4
1963.0     3.812    213.6
1964.0     3.804    212.8
1965.0     3.796    212.0
1966.0     3.787    211.1
1967.0     3.776    210.3
1968.0     3.765    209.5
1969.0     3.752    208.6
1970.0     3.739    207.8
1971.0     3.725    207.0
1972.0     3.709    206.1
1973.0     3.693    205.2
1974.0     3.676    204.4
1975.0     3.657    203.5
1976.0     3.638    202.6
1977.0     3.618    201.7
1978.0     3.596    200.8
1979.0     3.574    199.9
1980.0     3.551    199.0
1981.0     3.527    198.0
1982.0     3.502    197.1
1983.0     3.476    196.1
1984.0     3.450    195.1
1985.0     3.422    194.1
1986.0     3.393    193.1
1987.0     3.364    192.1
1988.0     3.333    191.0
1989.0     3.302    189.9
1990.0     3.270    188.8
1991.0     3.236    187.7
1992.0     3.202    186.6
1993.0     3.167    185.4
1994.0     3.132    184.2
1995.0     3.095    183.0
1996.0     3.057    181.8
1997.0     3.019    180.5
1998.0     2.979    179.2
1999.0     2.939    177.8
2000.0     2.898    176.5
2001.0     2.856    175.0
2002.0     2.813    173.6
2003.0     2.770    172.1
2004.0     2.725    170.5
2005.0     2.680    168.9
2006.0     2.633    167.2
2007.0     2.586    165.5
2008.0     2.538    163.7
2009.0     2.490    161.8
2010.0     2.440    159.9
2011.0     2.390    157.8
2012.0     2.339    155.7
2013.0     2.286    153.5
2014.0     2.234    151.2
2015.0     2.180    148.8
2016.0     2.125    146.3
2017.0     2.070    143.6
2018.0     2.014    140.7
2019.0     1.957    137.8
2020.0     1.899    134.6
2021.0     1.840    131.2
2022.0     1.780    127.6
2023.0     1.718    123.7
2024.0     1.656    119.6
2025.0     1.593    115.1
2026.0     1.528    110.3
2027.0     1.461    105.0
2028.0     1.393     99.2
2029.0     1.323     92.8
2030.0     1.251     85.7
2031.0     1.179     77.7
2032.0     1.107     68.6
2033.0     1.039     58.4
2034.0     0.979     46.8
2035.0     0.933     33.8
2036.0     0.909     19.8
2037.0     0.912      5.5
2038.0     0.944    351.8
2039.0     1.002    339.3
2040.0     1.079    328.3
2041.0     1.170    319.0
2042.0     1.269    311.0
2043.0     1.373    304.2
2044.0     1.478    298.4
2045.0     1.583    293.4
2046.0     1.687    289.0
2047.0     1.788    285.1
2048.0     1.886    281.6
2049.0     1.981    278.4
2050.0     2.074    275.5
2051.0     2.163    272.9
2052.0     2.248    270.5
2053.0     2.331    268.2
2054.0     2.410    266.1
2055.0     2.486    264.2
2056.0     2.560    262.3
2057.0     2.630    260.6
2058.0     2.698    258.9
2059.0     2.763    257.3
2060.0     2.825    255.8
2061.0     2.885    254.4
2062.0     2.943    253.0
2063.0     2.998    251.6
2064.0     3.051    250.3
2065.0     3.101    249.1
2066.0     3.150    247.9
2067.0     3.196    246.7
2068.0     3.241    245.6
2069.0     3.283    244.5
2070.0     3.324    243.4
2071.0     3.362    242.3
2072.0     3.399    241.3
2073.0     3.434    240.3
2074.0     3.468    239.3
2075.0     3.499    238.3
2076.0     3.529    237.4
2077.0     3.558    236.4
2078.0     3.585    235.5
2079.0     3.610    234.6
2080.0     3.634    233.7
2081.0     3.656    232.8
2082.0     3.677    231.9
2083.0     3.696    231.1
2084.0     3.714    230.2
2085.0     3.731    229.4
2086.0     3.746    228.5
2087.0     3.761    227.7
2088.0     3.773    226.8
2089.0     3.785    226.0
2090.0     3.795    225.2
2091.0     3.804    224.4
2092.0     3.812    223.6
2093.0     3.818    222.8
2094.0     3.823    221.9






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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