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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 16:17:24

Orbital Elements for COU247
WDS: COU247 WDS ID/Discoverer
P: 159.510 Orbital period (years)
a: 0.543 Semi-major axis (arcseconds)
i: 137.0 Inclination (degrees)
Ω: 21.1 Longitude of ascending node (degrees)
T: 2005.800 Epoch of periastron passage (year)
e: 0.309 Eccentricity
ω: 103.4 Longitude of periastron (degrees)
Start-Year: 1946.0 Year
End-Year: 2104.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU247
Position: 000928.15+190656.8 Epoch-2000 right ascension and declination
WDS-ID: 00095+1907 WDS designation
Discoverer Code: COU247 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 489 HD catalog number
Hipparcos number: 768 Hipparcos catalog number
V1: 8.29 Magnitude of the primary
V2: 9.98 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for COU247



WDS 6th Orbit including measures of COU247

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


Ephemeris of COU247
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.455    202.2
-------------------------
1946.0     0.578     63.1
1947.0     0.579     61.7
1948.0     0.581     60.3
1949.0     0.582     58.9
1950.0     0.584     57.6
1951.0     0.585     56.2
1952.0     0.586     54.9
1953.0     0.587     53.5
1954.0     0.587     52.2
1955.0     0.588     50.8
1956.0     0.588     49.5
1957.0     0.588     48.1
1958.0     0.588     46.8
1959.0     0.587     45.5
1960.0     0.586     44.1
1961.0     0.585     42.8
1962.0     0.584     41.4
1963.0     0.582     40.1
1964.0     0.580     38.7
1965.0     0.578     37.3
1966.0     0.575     35.9
1967.0     0.572     34.5
1968.0     0.569     33.1
1969.0     0.565     31.6
1970.0     0.561     30.2
1971.0     0.557     28.7
1972.0     0.552     27.2
1973.0     0.547     25.7
1974.0     0.541     24.1
1975.0     0.535     22.5
1976.0     0.528     20.9
1977.0     0.521     19.2
1978.0     0.513     17.4
1979.0     0.506     15.7
1980.0     0.497     13.8
1981.0     0.488     11.9
1982.0     0.479      9.9
1983.0     0.469      7.9
1984.0     0.459      5.7
1985.0     0.448      3.5
1986.0     0.437      1.1
1987.0     0.426    358.6
1988.0     0.415    356.0
1989.0     0.403    353.2
1990.0     0.391    350.3
1991.0     0.379    347.2
1992.0     0.366    343.8
1993.0     0.354    340.3
1994.0     0.343    336.5
1995.0     0.331    332.4
1996.0     0.320    328.0
1997.0     0.310    323.4
1998.0     0.301    318.4
1999.0     0.293    313.2
2000.0     0.286    307.7
2001.0     0.281    301.9
2002.0     0.278    296.0
2003.0     0.276    289.9
2004.0     0.276    283.8
2005.0     0.278    277.8
2006.0     0.282    271.9
2007.0     0.287    266.2
2008.0     0.293    260.6
2009.0     0.301    255.4
2010.0     0.310    250.5
2011.0     0.320    245.8
2012.0     0.330    241.4
2013.0     0.341    237.3
2014.0     0.351    233.4
2015.0     0.362    229.8
2016.0     0.373    226.4
2017.0     0.384    223.1
2018.0     0.394    220.1
2019.0     0.404    217.2
2020.0     0.414    214.4
2021.0     0.423    211.7
2022.0     0.432    209.2
2023.0     0.440    206.8
2024.0     0.448    204.4
2025.0     0.455    202.2
2026.0     0.462    200.0
2027.0     0.468    197.8
2028.0     0.474    195.7
2029.0     0.479    193.7
2030.0     0.484    191.7
2031.0     0.488    189.7
2032.0     0.492    187.8
2033.0     0.496    185.9
2034.0     0.499    184.0
2035.0     0.502    182.2
2036.0     0.504    180.4
2037.0     0.506    178.5
2038.0     0.508    176.7
2039.0     0.509    175.0
2040.0     0.511    173.2
2041.0     0.512    171.4
2042.0     0.512    169.6
2043.0     0.513    167.9
2044.0     0.513    166.1
2045.0     0.513    164.4
2046.0     0.514    162.6
2047.0     0.513    160.8
2048.0     0.513    159.1
2049.0     0.513    157.3
2050.0     0.513    155.6
2051.0     0.512    153.8
2052.0     0.512    152.0
2053.0     0.511    150.3
2054.0     0.511    148.5
2055.0     0.510    146.7
2056.0     0.510    145.0
2057.0     0.509    143.2
2058.0     0.509    141.4
2059.0     0.509    139.6
2060.0     0.508    137.8
2061.0     0.508    136.0
2062.0     0.508    134.2
2063.0     0.508    132.4
2064.0     0.507    130.6
2065.0     0.507    128.8
2066.0     0.508    127.0
2067.0     0.508    125.2
2068.0     0.508    123.4
2069.0     0.509    121.6
2070.0     0.509    119.9
2071.0     0.510    118.1
2072.0     0.511    116.3
2073.0     0.512    114.5
2074.0     0.513    112.8
2075.0     0.514    111.0
2076.0     0.515    109.3
2077.0     0.516    107.5
2078.0     0.518    105.8
2079.0     0.519    104.1
2080.0     0.521    102.3
2081.0     0.523    100.6
2082.0     0.525     99.0
2083.0     0.527     97.3
2084.0     0.529     95.6
2085.0     0.531     94.0
2086.0     0.533     92.3
2087.0     0.535     90.7
2088.0     0.537     89.1
2089.0     0.540     87.5
2090.0     0.542     85.9
2091.0     0.544     84.4
2092.0     0.547     82.8
2093.0     0.549     81.3
2094.0     0.552     79.7
2095.0     0.554     78.2
2096.0     0.557     76.7
2097.0     0.559     75.2
2098.0     0.562     73.8
2099.0     0.564     72.3
2100.0     0.566     70.8
2101.0     0.568     69.4
2102.0     0.571     68.0
2103.0     0.573     66.6



 

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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