Double Star Calculator - Orbit

Orbital Elements for DON1038
WDS: DON1038 WDS ID/Discoverer
P: 163.000 Orbital period (years)
a: 0.3934 Semi-major axis (arcseconds)
i: 0.0 Inclination (degrees)
Ω: 137.7 Longitude of ascending node (degrees)
T: 1992.090 Epoch of periastron passage (year)
e: 0.432 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1943.5 Year
End-Year: 2106.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for DON1038
Position: 225021.55-174420.3 Epoch-2000 right ascension and declination
WDS-ID: 22504-1744 WDS designation
Discoverer Code: DON1038 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.7 Magnitude of the primary
V2: 11.0 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: n Flags
Ephemerides: Ephemerides
Code: Tok2024c Reference

Double Star Orbit for DON1038



WDS 6th Orbit including measures of DON1038

-- 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 DON1038
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.424   262.28
--------------------------
1943.50    0.496   352.52
1944.50    0.492   353.78
1945.50    0.487   355.07
1946.50    0.483   356.38
1947.50    0.478   357.71
1948.50    0.473   359.08
1949.50    0.469     0.47
1950.50    0.464     1.88
1951.50    0.458     3.34
1952.50    0.453     4.82
1953.50    0.448     6.34
1954.50    0.442     7.89
1955.50    0.437     9.49
1956.50    0.431    11.13
1957.50    0.425    12.81
1958.50    0.419    14.54
1959.50    0.413    16.32
1960.50    0.407    18.16
1961.50    0.400    20.06
1962.50    0.394    22.01
1963.50    0.387    24.03
1964.50    0.380    26.13
1965.50    0.374    28.30
1966.50    0.367    30.55
1967.50    0.360    32.88
1968.50    0.353    35.31
1969.50    0.346    37.84
1970.50    0.338    40.48
1971.50    0.331    43.23
1972.50    0.324    46.11
1973.50    0.317    49.11
1974.50    0.309    52.26
1975.50    0.302    55.56
1976.50    0.295    59.02
1977.50    0.288    62.65
1978.50    0.281    66.46
1979.50    0.274    70.46
1980.50    0.268    74.66
1981.50    0.261    79.07
1982.50    0.255    83.70
1983.50    0.249    88.54
1984.50    0.244    93.60
1985.50    0.239    98.88
1986.50    0.235   104.36
1987.50    0.231   110.02
1988.50    0.228   115.86
1989.50    0.226   121.83
1990.50    0.224   127.91
1991.50    0.224   134.06
1992.50    0.224   140.23
1993.50    0.224   146.39
1994.50    0.226   152.48
1995.50    0.228   158.48
1996.50    0.231   164.34
1997.50    0.234   170.04
1998.50    0.239   175.55
1999.50    0.243   180.86
2000.50    0.249   185.96
2001.50    0.254   190.84
2002.50    0.260   195.51
2003.50    0.266   199.96
2004.50    0.273   204.20
2005.50    0.280   208.24
2006.50    0.287   212.08
2007.50    0.294   215.74
2008.50    0.301   219.23
2009.50    0.308   222.56
2010.50    0.315   225.73
2011.50    0.323   228.76
2012.50    0.330   231.66
2013.50    0.337   234.43
2014.50    0.344   237.09
2015.50    0.351   239.64
2016.50    0.358   242.09
2017.50    0.365   244.44
2018.50    0.372   246.70
2019.50    0.379   248.89
2020.50    0.386   250.99
2021.50    0.393   253.03
2022.50    0.399   255.00
2023.50    0.405   256.90
2024.50    0.412   258.75
2025.50    0.418   260.54
2026.50    0.424   262.28
2027.50    0.430   263.97
2028.50    0.436   265.62
2029.50    0.441   267.22
2030.50    0.447   268.79
2031.50    0.452   270.31
2032.50    0.458   271.80
2033.50    0.463   273.26
2034.50    0.468   274.68
2035.50    0.473   276.08
2036.50    0.477   277.44
2037.50    0.482   278.78
2038.50    0.486   280.10
2039.50    0.491   281.39
2040.50    0.495   282.66
2041.50    0.499   283.90
2042.50    0.503   285.13
2043.50    0.507   286.34
2044.50    0.511   287.53
2045.50    0.514   288.70
2046.50    0.518   289.86
2047.50    0.521   291.00
2048.50    0.524   292.13
2049.50    0.527   293.25
2050.50    0.530   294.35
2051.50    0.533   295.44
2052.50    0.536   296.52
2053.50    0.538   297.59
2054.50    0.541   298.64
2055.50    0.543   299.69
2056.50    0.545   300.74
2057.50    0.547   301.77
2058.50    0.549   302.79
2059.50    0.551   303.81
2060.50    0.553   304.82
2061.50    0.554   305.83
2062.50    0.556   306.83
2063.50    0.557   307.83
2064.50    0.558   308.82
2065.50    0.559   309.80
2066.50    0.560   310.79
2067.50    0.561   311.77
2068.50    0.562   312.75
2069.50    0.562   313.72
2070.50    0.563   314.70
2071.50    0.563   315.67
2072.50    0.563   316.64
2073.50    0.563   317.61
2074.50    0.563   318.58
2075.50    0.563   319.56
2076.50    0.563   320.53
2077.50    0.562   321.50
2078.50    0.562   322.48
2079.50    0.561   323.46
2080.50    0.560   324.44
2081.50    0.559   325.42
2082.50    0.558   326.41
2083.50    0.557   327.40
2084.50    0.556   328.39
2085.50    0.555   329.39
2086.50    0.553   330.40
2087.50    0.551   331.41
2088.50    0.550   332.42
2089.50    0.548   333.45
2090.50    0.546   334.48
2091.50    0.544   335.52
2092.50    0.541   336.57
2093.50    0.539   337.62
2094.50    0.536   338.69
2095.50    0.534   339.77
2096.50    0.531   340.85
2097.50    0.528   341.95
2098.50    0.525   343.07
2099.50    0.522   344.19
2100.50    0.518   345.33
2101.50    0.515   346.49
2102.50    0.511   347.66
2103.50    0.508   348.85
2104.50    0.504   350.05
2105.50    0.500   351.27






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 18:44:09



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