Double Star Calculator - Orbit

Orbital Elements for MLR297AC
WDS: MLR297AC WDS ID/Discoverer
P: 197.500 Orbital period (years)
a: 0.429 Semi-major axis (arcseconds)
i: 72.3 Inclination (degrees)
Ω: 128.1 Longitude of ascending node (degrees)
T: 1961.500 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1926.25 Year
End-Year: 2123.75 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for MLR297AC
Position: 015001.17+745600.1 Epoch-2000 right ascension and declination
WDS-ID: 01500+7456 WDS designation
Discoverer Code: MLR297AC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.01 Magnitude of the primary
V2: 10.72 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 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: Tok2019e Reference

Double Star Orbit for MLR297AC



WDS 6th Orbit including measures of MLR297AC

-- 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 MLR297AC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.235   278.83
--------------------------
1926.25    0.220    95.87
1927.25    0.230    97.89
1928.25    0.239    99.74
1929.25    0.249   101.46
1930.25    0.258   103.04
1931.25    0.268   104.52
1932.25    0.277   105.90
1933.25    0.286   107.19
1934.25    0.295   108.40
1935.25    0.304   109.53
1936.25    0.312   110.61
1937.25    0.321   111.63
1938.25    0.329   112.59
1939.25    0.337   113.52
1940.25    0.344   114.39
1941.25    0.352   115.24
1942.25    0.359   116.04
1943.25    0.366   116.82
1944.25    0.372   117.57
1945.25    0.378   118.29
1946.25    0.384   118.99
1947.25    0.390   119.67
1948.25    0.395   120.34
1949.25    0.400   120.98
1950.25    0.404   121.61
1951.25    0.409   122.23
1952.25    0.412   122.84
1953.25    0.416   123.43
1954.25    0.419   124.02
1955.25    0.421   124.59
1956.25    0.424   125.17
1957.25    0.425   125.73
1958.25    0.427   126.29
1959.25    0.428   126.85
1960.25    0.429   127.41
1961.25    0.429   127.96
1962.25    0.429   128.52
1963.25    0.428   129.07
1964.25    0.428   129.63
1965.25    0.426   130.19
1966.25    0.425   130.75
1967.25    0.423   131.32
1968.25    0.420   131.89
1969.25    0.417   132.48
1970.25    0.414   133.07
1971.25    0.410   133.67
1972.25    0.407   134.28
1973.25    0.402   134.90
1974.25    0.398   135.54
1975.25    0.393   136.19
1976.25    0.387   136.86
1977.25    0.381   137.55
1978.25    0.375   138.27
1979.25    0.369   139.00
1980.25    0.362   139.76
1981.25    0.355   140.56
1982.25    0.348   141.38
1983.25    0.341   142.24
1984.25    0.333   143.14
1985.25    0.325   144.08
1986.25    0.317   145.07
1987.25    0.308   146.12
1988.25    0.299   147.23
1989.25    0.290   148.40
1990.25    0.281   149.65
1991.25    0.272   150.98
1992.25    0.263   152.40
1993.25    0.253   153.93
1994.25    0.244   155.58
1995.25    0.235   157.37
1996.25    0.225   159.30
1997.25    0.216   161.40
1998.25    0.206   163.70
1999.25    0.197   166.21
2000.25    0.188   168.96
2001.25    0.179   171.98
2002.25    0.171   175.30
2003.25    0.163   178.96
2004.25    0.156   182.97
2005.25    0.149   187.35
2006.25    0.144   192.11
2007.25    0.139   197.24
2008.25    0.135   202.71
2009.25    0.132   208.44
2010.25    0.131   214.36
2011.25    0.131   220.35
2012.25    0.132   226.29
2013.25    0.134   232.08
2014.25    0.138   237.62
2015.25    0.142   242.84
2016.25    0.148   247.70
2017.25    0.154   252.17
2018.25    0.161   256.27
2019.25    0.169   260.01
2020.25    0.177   263.42
2021.25    0.186   266.51
2022.25    0.195   269.33
2023.25    0.204   271.90
2024.25    0.213   274.24
2025.25    0.223   276.39
2026.25    0.232   278.37
2027.25    0.242   280.18
2028.25    0.251   281.86
2029.25    0.261   283.42
2030.25    0.270   284.87
2031.25    0.279   286.23
2032.25    0.288   287.50
2033.25    0.297   288.69
2034.25    0.306   289.81
2035.25    0.314   290.87
2036.25    0.323   291.87
2037.25    0.331   292.83
2038.25    0.339   293.74
2039.25    0.346   294.61
2040.25    0.354   295.44
2041.25    0.361   296.24
2042.25    0.367   297.01
2043.25    0.374   297.75
2044.25    0.380   298.47
2045.25    0.386   299.17
2046.25    0.391   299.84
2047.25    0.396   300.50
2048.25    0.401   301.14
2049.25    0.405   301.77
2050.25    0.410   302.38
2051.25    0.413   302.99
2052.25    0.416   303.58
2053.25    0.419   304.16
2054.25    0.422   304.74
2055.25    0.424   305.31
2056.25    0.426   305.87
2057.25    0.427   306.43
2058.25    0.428   306.99
2059.25    0.429   307.55
2060.25    0.429   308.10
2061.25    0.429   308.65
2062.25    0.428   309.21
2063.25    0.427   309.77
2064.25    0.426   310.33
2065.25    0.424   310.89
2066.25    0.422   311.46
2067.25    0.419   312.04
2068.25    0.416   312.62
2069.25    0.413   313.21
2070.25    0.410   313.82
2071.25    0.405   314.43
2072.25    0.401   315.06
2073.25    0.396   315.70
2074.25    0.391   316.36
2075.25    0.386   317.03
2076.25    0.380   317.73
2077.25    0.374   318.45
2078.25    0.367   319.19
2079.25    0.361   319.96
2080.25    0.354   320.76
2081.25    0.346   321.59
2082.25    0.339   322.46
2083.25    0.331   323.37
2084.25    0.323   324.33
2085.25    0.314   325.33
2086.25    0.306   326.39
2087.25    0.297   327.51
2088.25    0.288   328.70
2089.25    0.279   329.97
2090.25    0.270   331.33
2091.25    0.261   332.78
2092.25    0.251   334.34
2093.25    0.242   336.02
2094.25    0.232   337.83
2095.25    0.223   339.81
2096.25    0.213   341.96
2097.25    0.204   344.30
2098.25    0.195   346.87
2099.25    0.186   349.69
2100.25    0.177   352.78
2101.25    0.169   356.19
2102.25    0.161   359.93
2103.25    0.154     4.03
2104.25    0.148     8.50
2105.25    0.142    13.36
2106.25    0.138    18.58
2107.25    0.134    24.12
2108.25    0.132    29.91
2109.25    0.131    35.85
2110.25    0.131    41.84
2111.25    0.132    47.76
2112.25    0.135    53.49
2113.25    0.139    58.96
2114.25    0.144    64.09
2115.25    0.149    68.85
2116.25    0.156    73.23
2117.25    0.163    77.24
2118.25    0.171    80.90
2119.25    0.179    84.22
2120.25    0.188    87.24
2121.25    0.197    89.99
2122.25    0.206    92.50
2123.25    0.216    94.80






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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 14:54:26



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