Double Star Calculator - Orbit

Orbital Elements for COU696
WDS: COU696 WDS ID/Discoverer
P: 177.000 Orbital period (years)
a: 0.366 Semi-major axis (arcseconds)
i: 107.3 Inclination (degrees)
Ω: 33.7 Longitude of ascending node (degrees)
T: 2007.900 Epoch of periastron passage (year)
e: 0.671 Eccentricity
ω: 74.2 Longitude of periastron (degrees)
Start-Year: 1936.5 Year
End-Year: 2113.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU696
Position: 035159.83+280052.6 Epoch-2000 right ascension and declination
WDS-ID: 03520+2801 WDS designation
Discoverer Code: COU696 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 282993 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.2 Magnitude of the primary
V2: 9.2 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: BAE2021 Reference

Double Star Orbit for COU696



WDS 6th Orbit including measures of COU696

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


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of COU696
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.294   209.43
--------------------------
1936.50    0.188   144.36
1937.50    0.186   142.63
1938.50    0.183   140.87
1939.50    0.181   139.06
1940.50    0.179   137.20
1941.50    0.177   135.31
1942.50    0.175   133.37
1943.50    0.174   131.39
1944.50    0.172   129.38
1945.50    0.171   127.34
1946.50    0.170   125.26
1947.50    0.169   123.16
1948.50    0.168   121.04
1949.50    0.167   118.90
1950.50    0.167   116.74
1951.50    0.166   114.57
1952.50    0.166   112.40
1953.50    0.166   110.23
1954.50    0.167   108.06
1955.50    0.167   105.90
1956.50    0.168   103.75
1957.50    0.168   101.62
1958.50    0.169    99.51
1959.50    0.170    97.43
1960.50    0.171    95.37
1961.50    0.173    93.34
1962.50    0.174    91.35
1963.50    0.176    89.39
1964.50    0.178    87.47
1965.50    0.179    85.58
1966.50    0.181    83.74
1967.50    0.183    81.93
1968.50    0.185    80.16
1969.50    0.188    78.44
1970.50    0.190    76.75
1971.50    0.192    75.10
1972.50    0.194    73.49
1973.50    0.196    71.91
1974.50    0.199    70.37
1975.50    0.201    68.87
1976.50    0.203    67.40
1977.50    0.205    65.96
1978.50    0.207    64.55
1979.50    0.210    63.17
1980.50    0.211    61.81
1981.50    0.213    60.48
1982.50    0.215    59.17
1983.50    0.216    57.88
1984.50    0.218    56.61
1985.50    0.219    55.35
1986.50    0.220    54.10
1987.50    0.220    52.86
1988.50    0.221    51.62
1989.50    0.221    50.39
1990.50    0.220    49.16
1991.50    0.219    47.91
1992.50    0.218    46.66
1993.50    0.216    45.38
1994.50    0.213    44.08
1995.50    0.210    42.73
1996.50    0.205    41.34
1997.50    0.200    39.88
1998.50    0.193    38.33
1999.50    0.186    36.66
2000.50    0.176    34.82
2001.50    0.165    32.76
2002.50    0.152    30.37
2003.50    0.136    27.47
2004.50    0.119    23.76
2005.50    0.098    18.63
2006.50    0.077    10.70
2007.50    0.055   356.46
2008.50    0.039   327.48
2009.50    0.039   284.06
2010.50    0.055   255.05
2011.50    0.077   240.89
2012.50    0.100   233.12
2013.50    0.122   228.20
2014.50    0.143   224.75
2015.50    0.162   222.15
2016.50    0.179   220.08
2017.50    0.196   218.37
2018.50    0.211   216.92
2019.50    0.224   215.65
2020.50    0.237   214.52
2021.50    0.249   213.50
2022.50    0.259   212.56
2023.50    0.269   211.70
2024.50    0.278   210.90
2025.50    0.286   210.15
2026.50    0.294   209.43
2027.50    0.301   208.75
2028.50    0.307   208.11
2029.50    0.313   207.48
2030.50    0.319   206.88
2031.50    0.324   206.30
2032.50    0.328   205.74
2033.50    0.333   205.19
2034.50    0.336   204.65
2035.50    0.340   204.12
2036.50    0.343   203.61
2037.50    0.345   203.10
2038.50    0.348   202.60
2039.50    0.350   202.11
2040.50    0.352   201.62
2041.50    0.354   201.14
2042.50    0.355   200.66
2043.50    0.356   200.18
2044.50    0.357   199.71
2045.50    0.358   199.24
2046.50    0.358   198.77
2047.50    0.358   198.30
2048.50    0.358   197.83
2049.50    0.358   197.37
2050.50    0.358   196.90
2051.50    0.358   196.43
2052.50    0.357   195.96
2053.50    0.356   195.49
2054.50    0.356   195.01
2055.50    0.355   194.54
2056.50    0.353   194.06
2057.50    0.352   193.58
2058.50    0.351   193.09
2059.50    0.349   192.60
2060.50    0.347   192.10
2061.50    0.346   191.60
2062.50    0.344   191.10
2063.50    0.342   190.59
2064.50    0.340   190.07
2065.50    0.338   189.55
2066.50    0.335   189.02
2067.50    0.333   188.48
2068.50    0.331   187.93
2069.50    0.328   187.38
2070.50    0.326   186.82
2071.50    0.323   186.24
2072.50    0.320   185.66
2073.50    0.317   185.07
2074.50    0.314   184.47
2075.50    0.311   183.86
2076.50    0.309   183.23
2077.50    0.305   182.59
2078.50    0.302   181.94
2079.50    0.299   181.28
2080.50    0.296   180.60
2081.50    0.293   179.91
2082.50    0.290   179.20
2083.50    0.286   178.47
2084.50    0.283   177.73
2085.50    0.279   176.97
2086.50    0.276   176.19
2087.50    0.273   175.39
2088.50    0.269   174.58
2089.50    0.266   173.74
2090.50    0.262   172.87
2091.50    0.259   171.99
2092.50    0.255   171.08
2093.50    0.252   170.14
2094.50    0.248   169.18
2095.50    0.245   168.19
2096.50    0.241   167.18
2097.50    0.238   166.13
2098.50    0.234   165.05
2099.50    0.231   163.94
2100.50    0.227   162.79
2101.50    0.224   161.62
2102.50    0.221   160.40
2103.50    0.217   159.15
2104.50    0.214   157.86
2105.50    0.211   156.53
2106.50    0.208   155.16
2107.50    0.205   153.75
2108.50    0.202   152.29
2109.50    0.199   150.79
2110.50    0.196   149.25
2111.50    0.193   147.67
2112.50    0.191   146.03






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 15:15:40



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