Double Star Calculator - Orbit

Orbital Elements for COU1085

WDS:	COU1085	WDS ID/Discoverer
P:	149.127	Orbital period (years)
a:	0.4807	Semi-major axis (arcseconds)
i:	131.6	Inclination (degrees)
Ω:	74.2	Longitude of ascending node (degrees)
T:	2112.184	Epoch of periastron passage (year)
e:	0.073	Eccentricity
ω:	49.7	Longitude of periastron (degrees)
Start-Year:	1950.4365	Year
End-Year:	2099.5635	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU1085
Position:	043930.99+340745.0	Epoch-2000 right ascension and declination
WDS-ID:	04395+3408	WDS designation
Discoverer Code:	COU1085	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	282346	HD catalog number
Hipparcos number:	21697	Hipparcos catalog number
V1:	10.07	Magnitude of the primary
V2:	11.36	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2009	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:	Cve2022	Reference

Double Star Orbit for COU1085

WDS 6th Orbit including measures of COU1085

-- 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 COU1085

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.483   236.00
--------------------------
1950.44    0.443    64.36
1951.44    0.439    62.46
1952.44    0.434    60.53
1953.44    0.430    58.55
1954.44    0.424    56.52
1955.44    0.418    54.44
1956.44    0.412    52.30
1957.44    0.406    50.09
1958.44    0.399    47.81
1959.44    0.392    45.45
1960.44    0.385    43.01
1961.44    0.378    40.47
1962.44    0.371    37.83
1963.44    0.363    35.09
1964.44    0.356    32.23
1965.44    0.349    29.26
1966.44    0.342    26.16
1967.44    0.335    22.94
1968.44    0.329    19.59
1969.44    0.323    16.12
1970.44    0.318    12.52
1971.44    0.313     8.80
1972.44    0.309     4.99
1973.44    0.306     1.07
1974.44    0.303   357.08
1975.44    0.301   353.04
1976.44    0.301   348.96
1977.44    0.301   344.87
1978.44    0.302   340.79
1979.44    0.303   336.75
1980.44    0.306   332.77
1981.44    0.310   328.87
1982.44    0.314   325.07
1983.44    0.319   321.37
1984.44    0.324   317.80
1985.44    0.330   314.35
1986.44    0.337   311.03
1987.44    0.344   307.84
1988.44    0.351   304.79
1989.44    0.359   301.86
1990.44    0.367   299.06
1991.44    0.375   296.38
1992.44    0.383   293.80
1993.44    0.391   291.34
1994.44    0.399   288.97
1995.44    0.407   286.70
1996.44    0.415   284.52
1997.44    0.423   282.41
1998.44    0.430   280.38
1999.44    0.437   278.42
2000.44    0.444   276.52
2001.44    0.451   274.68
2002.44    0.457   272.89
2003.44    0.463   271.15
2004.44    0.469   269.45
2005.44    0.474   267.79
2006.44    0.479   266.16
2007.44    0.483   264.57
2008.44    0.487   263.00
2009.44    0.491   261.46
2010.44    0.494   259.93
2011.44    0.497   258.43
2012.44    0.499   256.94
2013.44    0.501   255.46
2014.44    0.502   253.99
2015.44    0.503   252.53
2016.44    0.503   251.07
2017.44    0.503   249.61
2018.44    0.503   248.15
2019.44    0.502   246.69
2020.44    0.500   245.21
2021.44    0.499   243.73
2022.44    0.496   242.24
2023.44    0.494   240.74
2024.44    0.491   239.21
2025.44    0.487   237.67
2026.44    0.484   236.10
2027.44    0.480   234.51
2028.44    0.475   232.89
2029.44    0.471   231.24
2030.44    0.466   229.55
2031.44    0.460   227.83
2032.44    0.455   226.06
2033.44    0.449   224.26
2034.44    0.443   222.40
2035.44    0.437   220.50
2036.44    0.431   218.54
2037.44    0.425   216.52
2038.44    0.419   214.44
2039.44    0.412   212.30
2040.44    0.406   210.09
2041.44    0.399   207.81
2042.44    0.393   205.46
2043.44    0.387   203.03
2044.44    0.381   200.53
2045.44    0.375   197.95
2046.44    0.370   195.28
2047.44    0.364   192.54
2048.44    0.360   189.72
2049.44    0.355   186.83
2050.44    0.351   183.86
2051.44    0.347   180.83
2052.44    0.344   177.73
2053.44    0.341   174.59
2054.44    0.339   171.39
2055.44    0.337   168.16
2056.44    0.336   164.90
2057.44    0.336   161.63
2058.44    0.336   158.36
2059.44    0.337   155.09
2060.44    0.338   151.84
2061.44    0.340   148.63
2062.44    0.342   145.45
2063.44    0.345   142.32
2064.44    0.348   139.24
2065.44    0.352   136.22
2066.44    0.356   133.28
2067.44    0.361   130.40
2068.44    0.365   127.59
2069.44    0.370   124.86
2070.44    0.375   122.21
2071.44    0.381   119.62
2072.44    0.386   117.11
2073.44    0.392   114.67
2074.44    0.397   112.30
2075.44    0.403   109.99
2076.44    0.408   107.75
2077.44    0.414   105.56
2078.44    0.419   103.43
2079.44    0.424   101.35
2080.44    0.429    99.32
2081.44    0.433    97.33
2082.44    0.437    95.38
2083.44    0.441    93.46
2084.44    0.445    91.58
2085.44    0.448    89.73
2086.44    0.451    87.90
2087.44    0.453    86.09
2088.44    0.455    84.30
2089.44    0.456    82.52
2090.44    0.457    80.75
2091.44    0.458    78.98
2092.44    0.458    77.22
2093.44    0.457    75.46
2094.44    0.456    73.69
2095.44    0.455    71.91
2096.44    0.453    70.11
2097.44    0.450    68.30
2098.44    0.447    66.46
2099.44    0.444    64.60

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 15:28:21