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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:32:00

Orbital Elements for COU798
WDS: COU798 WDS ID/Discoverer
P: 154.700 Orbital period (years)
a: 0.259 Semi-major axis (arcseconds)
i: 66.7 Inclination (degrees)
Ω: 46.1 Longitude of ascending node (degrees)
T: 1983.370 Epoch of periastron passage (year)
e: 0.357 Eccentricity
ω: 24.7 Longitude of periastron (degrees)
Start-Year: 1948.0 Year
End-Year: 2102.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU798
Position: 153440.64+265442.8 Epoch-2000 right ascension and declination
WDS-ID: 15347+2655 WDS designation
Discoverer Code: COU798 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.5 Magnitude of the primary
V2: 9.8 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2007 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for COU798



WDS 6th Orbit including measures of COU798

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


Ephemeris of COU798
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.280    216.9
-------------------------
1948.0     0.115    298.2
1949.0     0.111    302.7
1950.0     0.109    307.5
1951.0     0.106    312.5
1952.0     0.105    317.7
1953.0     0.104    323.0
1954.0     0.104    328.4
1955.0     0.104    333.7
1956.0     0.106    338.9
1957.0     0.108    344.0
1958.0     0.110    348.9
1959.0     0.113    353.5
1960.0     0.117    357.9
1961.0     0.121      2.0
1962.0     0.125      5.8
1963.0     0.129      9.4
1964.0     0.134     12.7
1965.0     0.139     15.8
1966.0     0.143     18.7
1967.0     0.148     21.4
1968.0     0.152     24.0
1969.0     0.156     26.4
1970.0     0.160     28.7
1971.0     0.163     30.9
1972.0     0.166     33.1
1973.0     0.169     35.1
1974.0     0.171     37.1
1975.0     0.172     39.1
1976.0     0.172     41.0
1977.0     0.172     43.0
1978.0     0.172     44.9
1979.0     0.170     46.9
1980.0     0.168     48.9
1981.0     0.164     51.0
1982.0     0.160     53.2
1983.0     0.156     55.5
1984.0     0.150     58.0
1985.0     0.144     60.6
1986.0     0.138     63.5
1987.0     0.131     66.7
1988.0     0.123     70.3
1989.0     0.116     74.3
1990.0     0.108     78.9
1991.0     0.101     84.2
1992.0     0.094     90.3
1993.0     0.088     97.2
1994.0     0.083    105.1
1995.0     0.080    113.9
1996.0     0.078    123.2
1997.0     0.077    132.9
1998.0     0.079    142.3
1999.0     0.083    151.2
2000.0     0.088    159.2
2001.0     0.094    166.2
2002.0     0.101    172.3
2003.0     0.109    177.5
2004.0     0.117    182.1
2005.0     0.126    186.0
2006.0     0.135    189.4
2007.0     0.144    192.3
2008.0     0.153    195.0
2009.0     0.162    197.3
2010.0     0.171    199.4
2011.0     0.179    201.3
2012.0     0.188    203.0
2013.0     0.196    204.6
2014.0     0.205    206.0
2015.0     0.213    207.3
2016.0     0.220    208.6
2017.0     0.228    209.7
2018.0     0.235    210.8
2019.0     0.242    211.8
2020.0     0.249    212.7
2021.0     0.256    213.6
2022.0     0.262    214.5
2023.0     0.268    215.3
2024.0     0.274    216.1
2025.0     0.280    216.9
2026.0     0.285    217.6
2027.0     0.290    218.3
2028.0     0.295    218.9
2029.0     0.300    219.6
2030.0     0.304    220.2
2031.0     0.308    220.9
2032.0     0.312    221.5
2033.0     0.315    222.0
2034.0     0.319    222.6
2035.0     0.322    223.2
2036.0     0.325    223.7
2037.0     0.327    224.3
2038.0     0.330    224.8
2039.0     0.332    225.3
2040.0     0.334    225.9
2041.0     0.335    226.4
2042.0     0.337    226.9
2043.0     0.338    227.4
2044.0     0.339    227.9
2045.0     0.340    228.4
2046.0     0.340    228.9
2047.0     0.341    229.4
2048.0     0.341    229.9
2049.0     0.341    230.4
2050.0     0.340    230.9
2051.0     0.340    231.4
2052.0     0.339    231.9
2053.0     0.338    232.4
2054.0     0.337    232.9
2055.0     0.336    233.4
2056.0     0.334    233.9
2057.0     0.333    234.4
2058.0     0.331    235.0
2059.0     0.329    235.5
2060.0     0.326    236.0
2061.0     0.324    236.6
2062.0     0.321    237.1
2063.0     0.318    237.7
2064.0     0.315    238.3
2065.0     0.312    238.8
2066.0     0.309    239.4
2067.0     0.305    240.1
2068.0     0.302    240.7
2069.0     0.298    241.3
2070.0     0.294    242.0
2071.0     0.289    242.7
2072.0     0.285    243.4
2073.0     0.281    244.1
2074.0     0.276    244.8
2075.0     0.271    245.6
2076.0     0.266    246.4
2077.0     0.261    247.2
2078.0     0.256    248.1
2079.0     0.251    249.0
2080.0     0.245    249.9
2081.0     0.240    250.9
2082.0     0.234    251.9
2083.0     0.228    253.0
2084.0     0.222    254.2
2085.0     0.216    255.4
2086.0     0.210    256.6
2087.0     0.204    258.0
2088.0     0.198    259.4
2089.0     0.192    260.9
2090.0     0.185    262.5
2091.0     0.179    264.3
2092.0     0.173    266.1
2093.0     0.167    268.1
2094.0     0.161    270.3
2095.0     0.155    272.6
2096.0     0.149    275.1
2097.0     0.143    277.9
2098.0     0.137    280.8
2099.0     0.132    284.0
2100.0     0.127    287.5
2101.0     0.122    291.2



 

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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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