Double Star Calculator - Orbit

Orbital Elements for MLR377AB
WDS: MLR377AB WDS ID/Discoverer
P: 283.140 Orbital period (years)
a: 3.696 Semi-major axis (arcseconds)
i: 94.2 Inclination (degrees)
Ω: 106.0 Longitude of ascending node (degrees)
T: 1776.220 Epoch of periastron passage (year)
e: 0.982 Eccentricity
ω: 89.3 Longitude of periastron (degrees)
Start-Year: 1883.43 Year
End-Year: 2166.57 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for MLR377AB
Position: 022304.70+702035.6 Epoch-2000 right ascension and declination
WDS-ID: 02231+7021 WDS designation
Discoverer Code: MLR377AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 14382 HD catalog number
Hipparcos number: 11120 Hipparcos catalog number
V1: 8.42 Magnitude of the primary
V2: 8.70 Magnitude of the secondary
Equinox: 2000 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: n Flags
Ephemerides: Ephemerides
Code: USN2017c Reference

Double Star Orbit for MLR377AB



WDS 6th Orbit including measures of MLR377AB

-- 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 MLR377AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.709   131.20
--------------------------
1883.43    0.624   230.24
1884.43    0.621   229.62
1885.43    0.618   229.00
1886.43    0.615   228.37
1887.43    0.612   227.73
1888.43    0.609   227.08
1889.43    0.606   226.43
1890.43    0.603   225.77
1891.43    0.600   225.11
1892.43    0.597   224.44
1893.43    0.595   223.76
1894.43    0.592   223.08
1895.43    0.589   222.39
1896.43    0.587   221.70
1897.43    0.584   220.99
1898.43    0.581   220.29
1899.43    0.579   219.57
1900.43    0.576   218.85
1901.43    0.574   218.13
1902.43    0.572   217.40
1903.43    0.569   216.66
1904.43    0.567   215.91
1905.43    0.565   215.16
1906.43    0.563   214.41
1907.43    0.561   213.65
1908.43    0.559   212.88
1909.43    0.557   212.11
1910.43    0.555   211.33
1911.43    0.553   210.55
1912.43    0.552   209.77
1913.43    0.550   208.97
1914.43    0.549   208.18
1915.43    0.547   207.38
1916.43    0.546   206.57
1917.43    0.544   205.76
1918.43    0.543   204.95
1919.43    0.542   204.13
1920.43    0.541   203.31
1921.43    0.540   202.49
1922.43    0.539   201.66
1923.43    0.538   200.84
1924.43    0.537   200.00
1925.43    0.536   199.17
1926.43    0.536   198.33
1927.43    0.535   197.50
1928.43    0.535   196.66
1929.43    0.534   195.81
1930.43    0.534   194.97
1931.43    0.534   194.13
1932.43    0.534   193.28
1933.43    0.533   192.44
1934.43    0.533   191.60
1935.43    0.534   190.75
1936.43    0.534   189.91
1937.43    0.534   189.07
1938.43    0.534   188.22
1939.43    0.535   187.38
1940.43    0.535   186.54
1941.43    0.536   185.70
1942.43    0.536   184.87
1943.43    0.537   184.03
1944.43    0.538   183.20
1945.43    0.539   182.37
1946.43    0.540   181.55
1947.43    0.541   180.72
1948.43    0.542   179.90
1949.43    0.543   179.09
1950.43    0.544   178.27
1951.43    0.546   177.46
1952.43    0.547   176.66
1953.43    0.548   175.86
1954.43    0.550   175.06
1955.43    0.552   174.27
1956.43    0.553   173.48
1957.43    0.555   172.70
1958.43    0.557   171.92
1959.43    0.559   171.15
1960.43    0.560   170.38
1961.43    0.562   169.62
1962.43    0.564   168.86
1963.43    0.566   168.11
1964.43    0.569   167.36
1965.43    0.571   166.62
1966.43    0.573   165.89
1967.43    0.575   165.16
1968.43    0.578   164.44
1969.43    0.580   163.72
1970.43    0.582   163.01
1971.43    0.585   162.30
1972.43    0.587   161.60
1973.43    0.590   160.91
1974.43    0.592   160.22
1975.43    0.595   159.54
1976.43    0.597   158.86
1977.43    0.600   158.19
1978.43    0.603   157.53
1979.43    0.605   156.87
1980.43    0.608   156.22
1981.43    0.611   155.57
1982.43    0.614   154.93
1983.43    0.616   154.29
1984.43    0.619   153.66
1985.43    0.622   153.04
1986.43    0.625   152.42
1987.43    0.628   151.81
1988.43    0.630   151.20
1989.43    0.633   150.60
1990.43    0.636   150.00
1991.43    0.639   149.41
1992.43    0.642   148.83
1993.43    0.645   148.25
1994.43    0.647   147.67
1995.43    0.650   147.10
1996.43    0.653   146.53
1997.43    0.656   145.97
1998.43    0.658   145.41
1999.43    0.661   144.86
2000.43    0.664   144.31
2001.43    0.666   143.77
2002.43    0.669   143.23
2003.43    0.671   142.70
2004.43    0.674   142.17
2005.43    0.676   141.64
2006.43    0.679   141.12
2007.43    0.681   140.60
2008.43    0.683   140.08
2009.43    0.686   139.57
2010.43    0.688   139.06
2011.43    0.690   138.55
2012.43    0.692   138.05
2013.43    0.694   137.55
2014.43    0.696   137.05
2015.43    0.698   136.56
2016.43    0.699   136.06
2017.43    0.701   135.57
2018.43    0.702   135.09
2019.43    0.704   134.60
2020.43    0.705   134.12
2021.43    0.706   133.63
2022.43    0.707   133.15
2023.43    0.708   132.67
2024.43    0.708   132.19
2025.43    0.709   131.71
2026.43    0.709   131.24
2027.43    0.709   130.76
2028.43    0.709   130.28
2029.43    0.709   129.80
2030.43    0.708   129.32
2031.43    0.708   128.85
2032.43    0.706   128.36
2033.43    0.705   127.88
2034.43    0.703   127.40
2035.43    0.701   126.91
2036.43    0.699   126.42
2037.43    0.696   125.93
2038.43    0.693   125.43
2039.43    0.689   124.93
2040.43    0.685   124.42
2041.43    0.680   123.90
2042.43    0.675   123.38
2043.43    0.669   122.85
2044.43    0.662   122.31
2045.43    0.655   121.75
2046.43    0.646   121.18
2047.43    0.636   120.60
2048.43    0.625   119.99
2049.43    0.613   119.37
2050.43    0.598   118.71
2051.43    0.582   118.02
2052.43    0.563   117.29
2053.43    0.540   116.50
2054.43    0.514   115.64
2055.43    0.481   114.67
2056.43    0.439   113.53
2057.43    0.381   112.11
2058.43    0.288   109.98
2059.43    0.056   290.11
2060.43    0.313   281.84
2061.43    0.405   279.99
2062.43    0.465   278.72
2063.43    0.510   277.71
2064.43    0.546   276.85
2065.43    0.576   276.09
2066.43    0.602   275.40
2067.43    0.624   274.76
2068.43    0.643   274.16
2069.43    0.660   273.60
2070.43    0.676   273.06
2071.43    0.689   272.54
2072.43    0.702   272.05
2073.43    0.713   271.57
2074.43    0.723   271.10
2075.43    0.732   270.65
2076.43    0.740   270.20
2077.43    0.748   269.77
2078.43    0.754   269.34
2079.43    0.761   268.92
2080.43    0.766   268.51
2081.43    0.771   268.10
2082.43    0.776   267.70
2083.43    0.780   267.31
2084.43    0.784   266.91
2085.43    0.787   266.52
2086.43    0.790   266.14
2087.43    0.792   265.75
2088.43    0.795   265.37
2089.43    0.797   264.99
2090.43    0.798   264.61
2091.43    0.800   264.24
2092.43    0.801   263.86
2093.43    0.802   263.49
2094.43    0.803   263.12
2095.43    0.803   262.74
2096.43    0.804   262.37
2097.43    0.804   262.00
2098.43    0.804   261.63
2099.43    0.803   261.26
2100.43    0.803   260.88
2101.43    0.803   260.51
2102.43    0.802   260.14
2103.43    0.801   259.76
2104.43    0.800   259.39
2105.43    0.799   259.01
2106.43    0.798   258.64
2107.43    0.796   258.26
2108.43    0.795   257.88
2109.43    0.793   257.50
2110.43    0.792   257.11
2111.43    0.790   256.73
2112.43    0.788   256.34
2113.43    0.786   255.96
2114.43    0.784   255.57
2115.43    0.782   255.17
2116.43    0.780   254.78
2117.43    0.777   254.38
2118.43    0.775   253.98
2119.43    0.773   253.58
2120.43    0.770   253.18
2121.43    0.767   252.77
2122.43    0.765   252.36
2123.43    0.762   251.95
2124.43    0.759   251.54
2125.43    0.757   251.12
2126.43    0.754   250.70
2127.43    0.751   250.27
2128.43    0.748   249.85
2129.43    0.745   249.41
2130.43    0.742   248.98
2131.43    0.739   248.54
2132.43    0.736   248.10
2133.43    0.733   247.65
2134.43    0.730   247.21
2135.43    0.727   246.75
2136.43    0.723   246.30
2137.43    0.720   245.83
2138.43    0.717   245.37
2139.43    0.714   244.90
2140.43    0.710   244.42
2141.43    0.707   243.95
2142.43    0.704   243.46
2143.43    0.700   242.98
2144.43    0.697   242.48
2145.43    0.694   241.99
2146.43    0.690   241.49
2147.43    0.687   240.98
2148.43    0.684   240.47
2149.43    0.680   239.95
2150.43    0.677   239.43
2151.43    0.674   238.90
2152.43    0.670   238.37
2153.43    0.667   237.83
2154.43    0.664   237.29
2155.43    0.660   236.74
2156.43    0.657   236.19
2157.43    0.654   235.63
2158.43    0.650   235.06
2159.43    0.647   234.49
2160.43    0.644   233.92
2161.43    0.641   233.33
2162.43    0.637   232.74
2163.43    0.634   232.15
2164.43    0.631   231.55
2165.43    0.628   230.94
2166.43    0.625   230.33






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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 14:59:46



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