Double Star Calculator - Orbit

Orbital Elements for A337
WDS: A337 WDS ID/Discoverer
P: 207.000 Orbital period (years)
a: 0.465 Semi-major axis (arcseconds)
i: 129.6 Inclination (degrees)
Ω: 215.1 Longitude of ascending node (degrees)
T: 1900.700 Epoch of periastron passage (year)
e: 0.312 Eccentricity
ω: 311.7 Longitude of periastron (degrees)
Start-Year: 1921.5 Year
End-Year: 2128.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A337
Position: 081715.69-052208.8 Epoch-2000 right ascension and declination
WDS-ID: 08173-0522 WDS designation
Discoverer Code: A337 Discover designation and components
ADS number: 6719 Aitken Double Star catalog
HD number: 69526 HD catalog number
Hipparcos number: 40592 Hipparcos catalog number
V1: 7.99 Magnitude of the primary
V2: 9.57 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 Date of last observation
Orbit grade: 3 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 A337



WDS 6th Orbit including measures of A337

-- 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 A337
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.555    52.68
--------------------------
1921.50    0.362   204.03
1922.50    0.363   202.30
1923.50    0.364   200.57
1924.50    0.364   198.85
1925.50    0.364   197.14
1926.50    0.364   195.42
1927.50    0.364   193.70
1928.50    0.364   191.98
1929.50    0.363   190.26
1930.50    0.362   188.53
1931.50    0.361   186.79
1932.50    0.360   185.03
1933.50    0.359   183.27
1934.50    0.358   181.50
1935.50    0.356   179.71
1936.50    0.355   177.91
1937.50    0.353   176.09
1938.50    0.352   174.26
1939.50    0.350   172.41
1940.50    0.349   170.55
1941.50    0.348   168.68
1942.50    0.346   166.78
1943.50    0.345   164.88
1944.50    0.344   162.95
1945.50    0.343   161.02
1946.50    0.342   159.07
1947.50    0.341   157.12
1948.50    0.340   155.15
1949.50    0.339   153.18
1950.50    0.339   151.19
1951.50    0.338   149.21
1952.50    0.338   147.22
1953.50    0.338   145.23
1954.50    0.338   143.24
1955.50    0.339   141.25
1956.50    0.339   139.27
1957.50    0.340   137.29
1958.50    0.341   135.33
1959.50    0.342   133.38
1960.50    0.343   131.43
1961.50    0.345   129.51
1962.50    0.346   127.60
1963.50    0.348   125.71
1964.50    0.350   123.85
1965.50    0.352   122.00
1966.50    0.355   120.18
1967.50    0.357   118.38
1968.50    0.360   116.61
1969.50    0.363   114.86
1970.50    0.366   113.14
1971.50    0.369   111.45
1972.50    0.372   109.79
1973.50    0.375   108.16
1974.50    0.379   106.56
1975.50    0.382   104.98
1976.50    0.386   103.44
1977.50    0.390   101.92
1978.50    0.393   100.44
1979.50    0.397    98.98
1980.50    0.401    97.55
1981.50    0.405    96.15
1982.50    0.409    94.78
1983.50    0.414    93.44
1984.50    0.418    92.12
1985.50    0.422    90.83
1986.50    0.426    89.56
1987.50    0.431    88.32
1988.50    0.435    87.10
1989.50    0.439    85.91
1990.50    0.443    84.74
1991.50    0.448    83.59
1992.50    0.452    82.47
1993.50    0.456    81.36
1994.50    0.460    80.28
1995.50    0.465    79.22
1996.50    0.469    78.17
1997.50    0.473    77.14
1998.50    0.477    76.13
1999.50    0.481    75.14
2000.50    0.485    74.16
2001.50    0.489    73.20
2002.50    0.493    72.26
2003.50    0.496    71.32
2004.50    0.500    70.41
2005.50    0.504    69.50
2006.50    0.507    68.61
2007.50    0.511    67.73
2008.50    0.514    66.87
2009.50    0.517    66.01
2010.50    0.521    65.16
2011.50    0.524    64.33
2012.50    0.527    63.50
2013.50    0.529    62.69
2014.50    0.532    61.88
2015.50    0.535    61.08
2016.50    0.537    60.28
2017.50    0.540    59.50
2018.50    0.542    58.72
2019.50    0.544    57.95
2020.50    0.546    57.18
2021.50    0.548    56.42
2022.50    0.550    55.66
2023.50    0.551    54.91
2024.50    0.553    54.16
2025.50    0.554    53.42
2026.50    0.555    52.68
2027.50    0.556    51.94
2028.50    0.557    51.21
2029.50    0.557    50.47
2030.50    0.558    49.74
2031.50    0.558    49.01
2032.50    0.558    48.28
2033.50    0.558    47.55
2034.50    0.558    46.82
2035.50    0.558    46.08
2036.50    0.557    45.35
2037.50    0.556    44.62
2038.50    0.555    43.88
2039.50    0.554    43.14
2040.50    0.553    42.39
2041.50    0.551    41.65
2042.50    0.549    40.89
2043.50    0.547    40.14
2044.50    0.545    39.37
2045.50    0.543    38.60
2046.50    0.540    37.83
2047.50    0.537    37.04
2048.50    0.534    36.25
2049.50    0.531    35.45
2050.50    0.528    34.64
2051.50    0.524    33.81
2052.50    0.520    32.98
2053.50    0.516    32.13
2054.50    0.511    31.26
2055.50    0.507    30.39
2056.50    0.502    29.49
2057.50    0.497    28.58
2058.50    0.492    27.65
2059.50    0.486    26.69
2060.50    0.480    25.72
2061.50    0.474    24.72
2062.50    0.468    23.69
2063.50    0.461    22.64
2064.50    0.455    21.55
2065.50    0.448    20.43
2066.50    0.440    19.28
2067.50    0.433    18.08
2068.50    0.425    16.85
2069.50    0.418    15.57
2070.50    0.410    14.23
2071.50    0.401    12.85
2072.50    0.393    11.40
2073.50    0.384     9.89
2074.50    0.375     8.32
2075.50    0.366     6.66
2076.50    0.357     4.92
2077.50    0.348     3.09
2078.50    0.339     1.16
2079.50    0.330   359.12
2080.50    0.320   356.97
2081.50    0.311   354.68
2082.50    0.302   352.26
2083.50    0.293   349.68
2084.50    0.284   346.93
2085.50    0.275   344.01
2086.50    0.266   340.90
2087.50    0.258   337.59
2088.50    0.251   334.08
2089.50    0.244   330.34
2090.50    0.237   326.40
2091.50    0.231   322.24
2092.50    0.226   317.88
2093.50    0.222   313.33
2094.50    0.219   308.64
2095.50    0.217   303.83
2096.50    0.215   298.94
2097.50    0.215   294.02
2098.50    0.216   289.12
2099.50    0.218   284.29
2100.50    0.221   279.56
2101.50    0.225   274.98
2102.50    0.229   270.56
2103.50    0.235   266.33
2104.50    0.240   262.29
2105.50    0.247   258.45
2106.50    0.253   254.80
2107.50    0.260   251.35
2108.50    0.267   248.08
2109.50    0.274   244.97
2110.50    0.282   242.03
2111.50    0.289   239.22
2112.50    0.296   236.56
2113.50    0.302   234.01
2114.50    0.309   231.57
2115.50    0.315   229.22
2116.50    0.321   226.97
2117.50    0.326   224.79
2118.50    0.331   222.69
2119.50    0.336   220.64
2120.50    0.341   218.65
2121.50    0.345   216.71
2122.50    0.348   214.81
2123.50    0.351   212.95
2124.50    0.354   211.12
2125.50    0.357   209.32
2126.50    0.359   207.54
2127.50    0.360   205.78






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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 16:06:17



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