Double Star Calculator - Orbit

Orbital Elements for DON97
WDS: DON97 WDS ID/Discoverer
P: 258.000 Orbital period (years)
a: 0.457 Semi-major axis (arcseconds)
i: 133.8 Inclination (degrees)
Ω: 165.4 Longitude of ascending node (degrees)
T: 1952.800 Epoch of periastron passage (year)
e: 0.264 Eccentricity
ω: 205.7 Longitude of periastron (degrees)
Start-Year: 1896.0 Year
End-Year: 2154.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for DON97
Position: 051630.54-210600.3 Epoch-2000 right ascension and declination
WDS-ID: 05165-2106 WDS designation
Discoverer Code: DON97 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 34432 HD catalog number
Hipparcos number: 24592 Hipparcos catalog number
V1: 8.07 Magnitude of the primary
V2: 9.81 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 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: Tok2014a Reference

Double Star Orbit for DON97



WDS 6th Orbit including measures of DON97

-- 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 DON97
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.486   183.25
--------------------------
1896.00    0.325    66.41
1897.00    0.324    64.56
1898.00    0.323    62.70
1899.00    0.322    60.82
1900.00    0.321    58.94
1901.00    0.321    57.06
1902.00    0.321    55.16
1903.00    0.320    53.27
1904.00    0.320    51.38
1905.00    0.321    49.48
1906.00    0.321    47.59
1907.00    0.321    45.70
1908.00    0.322    43.82
1909.00    0.322    41.94
1910.00    0.323    40.08
1911.00    0.324    38.22
1912.00    0.325    36.37
1913.00    0.326    34.54
1914.00    0.327    32.71
1915.00    0.328    30.90
1916.00    0.330    29.10
1917.00    0.331    27.32
1918.00    0.332    25.55
1919.00    0.333    23.79
1920.00    0.335    22.05
1921.00    0.336    20.32
1922.00    0.337    18.60
1923.00    0.339    16.90
1924.00    0.340    15.21
1925.00    0.341    13.53
1926.00    0.342    11.87
1927.00    0.343    10.21
1928.00    0.344     8.57
1929.00    0.345     6.93
1930.00    0.346     5.30
1931.00    0.347     3.68
1932.00    0.347     2.07
1933.00    0.348     0.45
1934.00    0.348   358.85
1935.00    0.348   357.24
1936.00    0.348   355.63
1937.00    0.348   354.03
1938.00    0.347   352.42
1939.00    0.347   350.80
1940.00    0.346   349.18
1941.00    0.345   347.55
1942.00    0.344   345.91
1943.00    0.342   344.26
1944.00    0.341   342.59
1945.00    0.339   340.91
1946.00    0.337   339.21
1947.00    0.335   337.49
1948.00    0.333   335.74
1949.00    0.330   333.97
1950.00    0.328   332.18
1951.00    0.325   330.35
1952.00    0.322   328.49
1953.00    0.319   326.59
1954.00    0.316   324.66
1955.00    0.312   322.69
1956.00    0.309   320.67
1957.00    0.305   318.61
1958.00    0.302   316.50
1959.00    0.298   314.34
1960.00    0.295   312.13
1961.00    0.291   309.87
1962.00    0.288   307.55
1963.00    0.285   305.17
1964.00    0.281   302.74
1965.00    0.278   300.26
1966.00    0.275   297.71
1967.00    0.272   295.12
1968.00    0.270   292.47
1969.00    0.267   289.77
1970.00    0.265   287.02
1971.00    0.263   284.24
1972.00    0.262   281.42
1973.00    0.261   278.57
1974.00    0.260   275.70
1975.00    0.259   272.81
1976.00    0.259   269.91
1977.00    0.259   267.01
1978.00    0.260   264.13
1979.00    0.261   261.26
1980.00    0.262   258.41
1981.00    0.264   255.60
1982.00    0.266   252.83
1983.00    0.268   250.10
1984.00    0.271   247.43
1985.00    0.274   244.81
1986.00    0.277   242.25
1987.00    0.281   239.76
1988.00    0.285   237.33
1989.00    0.289   234.97
1990.00    0.294   232.68
1991.00    0.298   230.45
1992.00    0.303   228.30
1993.00    0.308   226.21
1994.00    0.313   224.19
1995.00    0.318   222.24
1996.00    0.324   220.35
1997.00    0.329   218.53
1998.00    0.335   216.76
1999.00    0.340   215.05
2000.00    0.346   213.40
2001.00    0.352   211.80
2002.00    0.357   210.25
2003.00    0.363   208.75
2004.00    0.369   207.30
2005.00    0.375   205.90
2006.00    0.381   204.53
2007.00    0.386   203.21
2008.00    0.392   201.93
2009.00    0.398   200.68
2010.00    0.403   199.47
2011.00    0.409   198.29
2012.00    0.415   197.14
2013.00    0.420   196.02
2014.00    0.426   194.94
2015.00    0.431   193.88
2016.00    0.436   192.84
2017.00    0.441   191.83
2018.00    0.447   190.84
2019.00    0.452   189.88
2020.00    0.457   188.94
2021.00    0.461   188.01
2022.00    0.466   187.11
2023.00    0.471   186.22
2024.00    0.475   185.35
2025.00    0.480   184.50
2026.00    0.484   183.66
2027.00    0.488   182.84
2028.00    0.493   182.03
2029.00    0.497   181.24
2030.00    0.501   180.45
2031.00    0.504   179.68
2032.00    0.508   178.93
2033.00    0.512   178.18
2034.00    0.515   177.44
2035.00    0.519   176.71
2036.00    0.522   175.99
2037.00    0.525   175.28
2038.00    0.528   174.58
2039.00    0.531   173.89
2040.00    0.534   173.20
2041.00    0.536   172.52
2042.00    0.539   171.85
2043.00    0.541   171.18
2044.00    0.544   170.52
2045.00    0.546   169.86
2046.00    0.548   169.21
2047.00    0.550   168.57
2048.00    0.552   167.92
2049.00    0.553   167.29
2050.00    0.555   166.65
2051.00    0.556   166.02
2052.00    0.558   165.40
2053.00    0.559   164.77
2054.00    0.560   164.15
2055.00    0.561   163.53
2056.00    0.562   162.92
2057.00    0.563   162.30
2058.00    0.564   161.69
2059.00    0.564   161.08
2060.00    0.565   160.47
2061.00    0.565   159.86
2062.00    0.565   159.25
2063.00    0.566   158.64
2064.00    0.566   158.03
2065.00    0.565   157.42
2066.00    0.565   156.82
2067.00    0.565   156.21
2068.00    0.565   155.60
2069.00    0.564   154.99
2070.00    0.563   154.37
2071.00    0.563   153.76
2072.00    0.562   153.14
2073.00    0.561   152.53
2074.00    0.560   151.91
2075.00    0.559   151.29
2076.00    0.558   150.66
2077.00    0.556   150.03
2078.00    0.555   149.40
2079.00    0.553   148.77
2080.00    0.552   148.13
2081.00    0.550   147.49
2082.00    0.548   146.85
2083.00    0.546   146.20
2084.00    0.544   145.54
2085.00    0.542   144.89
2086.00    0.540   144.22
2087.00    0.538   143.55
2088.00    0.536   142.88
2089.00    0.533   142.20
2090.00    0.531   141.51
2091.00    0.528   140.81
2092.00    0.526   140.11
2093.00    0.523   139.41
2094.00    0.520   138.69
2095.00    0.517   137.97
2096.00    0.514   137.23
2097.00    0.511   136.49
2098.00    0.508   135.75
2099.00    0.505   134.99
2100.00    0.502   134.22
2101.00    0.499   133.44
2102.00    0.495   132.65
2103.00    0.492   131.86
2104.00    0.488   131.05
2105.00    0.485   130.22
2106.00    0.481   129.39
2107.00    0.478   128.54
2108.00    0.474   127.68
2109.00    0.470   126.81
2110.00    0.467   125.93
2111.00    0.463   125.03
2112.00    0.459   124.11
2113.00    0.455   123.18
2114.00    0.451   122.23
2115.00    0.448   121.27
2116.00    0.444   120.29
2117.00    0.440   119.29
2118.00    0.436   118.28
2119.00    0.432   117.25
2120.00    0.428   116.19
2121.00    0.424   115.12
2122.00    0.420   114.03
2123.00    0.416   112.92
2124.00    0.412   111.78
2125.00    0.408   110.63
2126.00    0.404   109.45
2127.00    0.401   108.25
2128.00    0.397   107.02
2129.00    0.393   105.77
2130.00    0.389   104.50
2131.00    0.385   103.20
2132.00    0.382   101.88
2133.00    0.378   100.53
2134.00    0.375    99.16
2135.00    0.371    97.76
2136.00    0.368    96.33
2137.00    0.364    94.88
2138.00    0.361    93.40
2139.00    0.358    91.89
2140.00    0.355    90.36
2141.00    0.352    88.80
2142.00    0.349    87.22
2143.00    0.346    85.61
2144.00    0.344    83.97
2145.00    0.341    82.31
2146.00    0.339    80.63
2147.00    0.336    78.92
2148.00    0.334    77.19
2149.00    0.332    75.44
2150.00    0.331    73.67
2151.00    0.329    71.88
2152.00    0.327    70.07
2153.00    0.326    68.25






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 15:35:41



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