Double Star Calculator - Orbit

Orbital Elements for COU1531

WDS:	COU1531	WDS ID/Discoverer
P:	203.500	Orbital period (years)
a:	0.448	Semi-major axis (arcseconds)
i:	123.8	Inclination (degrees)
Ω:	11.9	Longitude of ascending node (degrees)
T:	2024.300	Epoch of periastron passage (year)
e:	0.758	Eccentricity
ω:	70.3	Longitude of periastron (degrees)
Start-Year:	1923.25	Year
End-Year:	2126.75	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU1531
Position:	050828.28+375447.9	Epoch-2000 right ascension and declination
WDS-ID:	05085+3755	WDS designation
Discoverer Code:	COU1531	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	32949	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.5	Magnitude of the primary
V2:	10.5	Magnitude of the secondary
Equinox:		Equinox
Date:	2010	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Ksr2021	Reference

Double Star Orbit for COU1531

WDS 6th Orbit including measures of COU1531

-- 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 COU1531

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.076   247.90
--------------------------
1923.25    0.489   134.29
1924.25    0.487   133.75
1925.25    0.486   133.21
1926.25    0.484   132.66
1927.25    0.482   132.10
1928.25    0.480   131.55
1929.25    0.478   130.98
1930.25    0.475   130.42
1931.25    0.473   129.84
1932.25    0.471   129.27
1933.25    0.469   128.68
1934.25    0.467   128.09
1935.25    0.464   127.50
1936.25    0.462   126.90
1937.25    0.460   126.29
1938.25    0.457   125.68
1939.25    0.455   125.06
1940.25    0.453   124.44
1941.25    0.450   123.80
1942.25    0.448   123.16
1943.25    0.445   122.52
1944.25    0.442   121.86
1945.25    0.440   121.20
1946.25    0.437   120.53
1947.25    0.435   119.85
1948.25    0.432   119.17
1949.25    0.429   118.47
1950.25    0.427   117.77
1951.25    0.424   117.06
1952.25    0.421   116.33
1953.25    0.418   115.60
1954.25    0.416   114.86
1955.25    0.413   114.11
1956.25    0.410   113.35
1957.25    0.407   112.58
1958.25    0.404   111.79
1959.25    0.401   111.00
1960.25    0.398   110.19
1961.25    0.396   109.38
1962.25    0.393   108.55
1963.25    0.390   107.71
1964.25    0.387   106.85
1965.25    0.384   105.98
1966.25    0.381   105.10
1967.25    0.378   104.20
1968.25    0.375   103.29
1969.25    0.372   102.37
1970.25    0.369   101.43
1971.25    0.366   100.48
1972.25    0.363    99.50
1973.25    0.360    98.52
1974.25    0.357    97.51
1975.25    0.354    96.49
1976.25    0.351    95.45
1977.25    0.347    94.39
1978.25    0.344    93.32
1979.25    0.341    92.22
1980.25    0.338    91.10
1981.25    0.335    89.97
1982.25    0.332    88.81
1983.25    0.329    87.63
1984.25    0.326    86.43
1985.25    0.323    85.21
1986.25    0.320    83.96
1987.25    0.317    82.69
1988.25    0.314    81.39
1989.25    0.311    80.07
1990.25    0.307    78.72
1991.25    0.304    77.34
1992.25    0.301    75.94
1993.25    0.298    74.50
1994.25    0.295    73.03
1995.25    0.292    71.53
1996.25    0.288    70.00
1997.25    0.285    68.44
1998.25    0.282    66.83
1999.25    0.278    65.19
2000.25    0.275    63.51
2001.25    0.272    61.78
2002.25    0.268    60.01
2003.25    0.264    58.20
2004.25    0.261    56.33
2005.25    0.257    54.40
2006.25    0.253    52.41
2007.25    0.248    50.36
2008.25    0.244    48.24
2009.25    0.239    46.03
2010.25    0.234    43.73
2011.25    0.229    41.33
2012.25    0.223    38.81
2013.25    0.217    36.15
2014.25    0.210    33.31
2015.25    0.202    30.28
2016.25    0.193    26.98
2017.25    0.183    23.35
2018.25    0.172    19.28
2019.25    0.159    14.59
2020.25    0.144     8.99
2021.25    0.127     1.94
2022.25    0.107   352.43
2023.25    0.086   338.37
2024.25    0.068   316.07
2025.25    0.062   284.17
2026.25    0.071   253.84
2027.25    0.092   233.90
2028.25    0.115   221.63
2029.25    0.138   213.53
2030.25    0.161   207.76
2031.25    0.182   203.36
2032.25    0.202   199.85
2033.25    0.220   196.95
2034.25    0.237   194.48
2035.25    0.253   192.33
2036.25    0.268   190.42
2037.25    0.282   188.71
2038.25    0.295   187.16
2039.25    0.307   185.74
2040.25    0.319   184.42
2041.25    0.329   183.19
2042.25    0.340   182.04
2043.25    0.350   180.96
2044.25    0.359   179.93
2045.25    0.368   178.96
2046.25    0.376   178.03
2047.25    0.384   177.14
2048.25    0.392   176.28
2049.25    0.399   175.46
2050.25    0.406   174.66
2051.25    0.413   173.89
2052.25    0.419   173.15
2053.25    0.425   172.42
2054.25    0.431   171.72
2055.25    0.436   171.03
2056.25    0.441   170.36
2057.25    0.446   169.71
2058.25    0.451   169.07
2059.25    0.456   168.44
2060.25    0.460   167.83
2061.25    0.464   167.22
2062.25    0.468   166.63
2063.25    0.472   166.05
2064.25    0.475   165.47
2065.25    0.479   164.91
2066.25    0.482   164.35
2067.25    0.485   163.80
2068.25    0.488   163.25
2069.25    0.491   162.71
2070.25    0.493   162.18
2071.25    0.496   161.65
2072.25    0.498   161.13
2073.25    0.500   160.61
2074.25    0.502   160.10
2075.25    0.504   159.59
2076.25    0.506   159.09
2077.25    0.508   158.59
2078.25    0.509   158.09
2079.25    0.511   157.59
2080.25    0.512   157.10
2081.25    0.513   156.61
2082.25    0.515   156.12
2083.25    0.516   155.64
2084.25    0.517   155.15
2085.25    0.517   154.67
2086.25    0.518   154.19
2087.25    0.519   153.71
2088.25    0.520   153.24
2089.25    0.520   152.76
2090.25    0.520   152.28
2091.25    0.521   151.81
2092.25    0.521   151.33
2093.25    0.521   150.86
2094.25    0.521   150.38
2095.25    0.521   149.91
2096.25    0.521   149.44
2097.25    0.521   148.96
2098.25    0.521   148.49
2099.25    0.521   148.01
2100.25    0.520   147.54
2101.25    0.520   147.06
2102.25    0.519   146.58
2103.25    0.519   146.10
2104.25    0.518   145.63
2105.25    0.517   145.14
2106.25    0.517   144.66
2107.25    0.516   144.18
2108.25    0.515   143.70
2109.25    0.514   143.21
2110.25    0.513   142.72
2111.25    0.512   142.23
2112.25    0.511   141.74
2113.25    0.510   141.24
2114.25    0.509   140.75
2115.25    0.507   140.25
2116.25    0.506   139.75
2117.25    0.505   139.24
2118.25    0.503   138.73
2119.25    0.502   138.22
2120.25    0.500   137.71
2121.25    0.499   137.19
2122.25    0.497   136.67
2123.25    0.495   136.15
2124.25    0.494   135.62
2125.25    0.492   135.09
2126.25    0.490   134.56

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 15:34:26