Double Star Calculator - Orbit

Orbital Elements for RST769
WDS: RST769 WDS ID/Discoverer
P: 201.470 Orbital period (years)
a: 0.392 Semi-major axis (arcseconds)
i: 141.9 Inclination (degrees)
Ω: 163.2 Longitude of ascending node (degrees)
T: 1977.280 Epoch of periastron passage (year)
e: 0.379 Eccentricity
ω: 238.0 Longitude of periastron (degrees)
Start-Year: 1924.265 Year
End-Year: 2125.735 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for RST769
Position: 152613.05-281837.7 Epoch-2000 right ascension and declination
WDS-ID: 15262-2819 WDS designation
Discoverer Code: RST769 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 137320 HD catalog number
Hipparcos number: 75563 Hipparcos catalog number
V1: 10.73 Magnitude of the primary
V2: 10.94 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 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: Tok2015c Reference

Double Star Orbit for RST769



WDS 6th Orbit including measures of RST769

-- 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 RST769
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.438   158.11
--------------------------
1924.27    0.364    54.76
1925.27    0.362    53.25
1926.27    0.360    51.71
1927.27    0.359    50.17
1928.27    0.357    48.61
1929.27    0.355    47.03
1930.27    0.354    45.44
1931.27    0.352    43.83
1932.27    0.350    42.21
1933.27    0.349    40.57
1934.27    0.347    38.92
1935.27    0.345    37.25
1936.27    0.344    35.57
1937.27    0.342    33.87
1938.27    0.341    32.15
1939.27    0.339    30.42
1940.27    0.337    28.67
1941.27    0.336    26.91
1942.27    0.334    25.12
1943.27    0.332    23.32
1944.27    0.330    21.50
1945.27    0.328    19.65
1946.27    0.327    17.79
1947.27    0.325    15.90
1948.27    0.322    13.99
1949.27    0.320    12.06
1950.27    0.318    10.09
1951.27    0.316     8.10
1952.27    0.313     6.08
1953.27    0.311     4.03
1954.27    0.308     1.94
1955.27    0.305   359.81
1956.27    0.302   357.64
1957.27    0.299   355.42
1958.27    0.295   353.16
1959.27    0.292   350.84
1960.27    0.288   348.46
1961.27    0.284   346.02
1962.27    0.280   343.50
1963.27    0.276   340.92
1964.27    0.271   338.24
1965.27    0.267   335.48
1966.27    0.262   332.61
1967.27    0.257   329.63
1968.27    0.252   326.54
1969.27    0.246   323.31
1970.27    0.241   319.94
1971.27    0.236   316.42
1972.27    0.231   312.75
1973.27    0.225   308.90
1974.27    0.220   304.87
1975.27    0.216   300.67
1976.27    0.211   296.28
1977.27    0.207   291.72
1978.27    0.204   287.00
1979.27    0.201   282.13
1980.27    0.199   277.14
1981.27    0.198   272.06
1982.27    0.197   266.94
1983.27    0.198   261.80
1984.27    0.199   256.71
1985.27    0.201   251.69
1986.27    0.203   246.78
1987.27    0.207   242.02
1988.27    0.211   237.43
1989.27    0.216   233.04
1990.27    0.221   228.85
1991.27    0.227   224.86
1992.27    0.233   221.08
1993.27    0.240   217.50
1994.27    0.247   214.12
1995.27    0.254   210.93
1996.27    0.261   207.90
1997.27    0.268   205.05
1998.27    0.276   202.34
1999.27    0.283   199.78
2000.27    0.290   197.35
2001.27    0.298   195.04
2002.27    0.305   192.84
2003.27    0.312   190.74
2004.27    0.320   188.74
2005.27    0.327   186.82
2006.27    0.333   184.99
2007.27    0.340   183.23
2008.27    0.347   181.53
2009.27    0.353   179.90
2010.27    0.360   178.33
2011.27    0.366   176.81
2012.27    0.372   175.34
2013.27    0.378   173.91
2014.27    0.383   172.53
2015.27    0.389   171.19
2016.27    0.394   169.88
2017.27    0.399   168.61
2018.27    0.404   167.37
2019.27    0.409   166.16
2020.27    0.413   164.97
2021.27    0.418   163.82
2022.27    0.422   162.68
2023.27    0.426   161.57
2024.27    0.430   160.48
2025.27    0.434   159.41
2026.27    0.437   158.35
2027.27    0.441   157.32
2028.27    0.444   156.29
2029.27    0.447   155.29
2030.27    0.450   154.29
2031.27    0.453   153.31
2032.27    0.456   152.34
2033.27    0.458   151.39
2034.27    0.461   150.44
2035.27    0.463   149.50
2036.27    0.465   148.57
2037.27    0.467   147.65
2038.27    0.469   146.74
2039.27    0.471   145.83
2040.27    0.472   144.93
2041.27    0.474   144.04
2042.27    0.475   143.15
2043.27    0.476   142.27
2044.27    0.477   141.39
2045.27    0.478   140.51
2046.27    0.479   139.64
2047.27    0.480   138.77
2048.27    0.481   137.90
2049.27    0.481   137.04
2050.27    0.482   136.17
2051.27    0.482   135.31
2052.27    0.482   134.45
2053.27    0.482   133.59
2054.27    0.482   132.73
2055.27    0.482   131.87
2056.27    0.482   131.01
2057.27    0.482   130.15
2058.27    0.482   129.29
2059.27    0.481   128.43
2060.27    0.481   127.56
2061.27    0.480   126.70
2062.27    0.480   125.83
2063.27    0.479   124.96
2064.27    0.478   124.09
2065.27    0.477   123.21
2066.27    0.476   122.33
2067.27    0.475   121.45
2068.27    0.474   120.56
2069.27    0.473   119.67
2070.27    0.472   118.77
2071.27    0.471   117.87
2072.27    0.469   116.97
2073.27    0.468   116.06
2074.27    0.466   115.14
2075.27    0.465   114.22
2076.27    0.463   113.29
2077.27    0.462   112.36
2078.27    0.460   111.42
2079.27    0.459   110.47
2080.27    0.457   109.51
2081.27    0.455   108.55
2082.27    0.453   107.58
2083.27    0.451   106.61
2084.27    0.450   105.62
2085.27    0.448   104.63
2086.27    0.446   103.62
2087.27    0.444   102.61
2088.27    0.442   101.59
2089.27    0.440   100.56
2090.27    0.438    99.52
2091.27    0.436    98.47
2092.27    0.433    97.42
2093.27    0.431    96.35
2094.27    0.429    95.27
2095.27    0.427    94.17
2096.27    0.425    93.07
2097.27    0.423    91.96
2098.27    0.421    90.83
2099.27    0.418    89.70
2100.27    0.416    88.55
2101.27    0.414    87.39
2102.27    0.412    86.22
2103.27    0.410    85.03
2104.27    0.407    83.83
2105.27    0.405    82.62
2106.27    0.403    81.40
2107.27    0.401    80.16
2108.27    0.399    78.91
2109.27    0.397    77.64
2110.27    0.394    76.36
2111.27    0.392    75.07
2112.27    0.390    73.76
2113.27    0.388    72.44
2114.27    0.386    71.11
2115.27    0.384    69.76
2116.27    0.382    68.40
2117.27    0.380    67.02
2118.27    0.378    65.63
2119.27    0.376    64.22
2120.27    0.374    62.80
2121.27    0.372    61.36
2122.27    0.370    59.91
2123.27    0.368    58.45
2124.27    0.367    56.97
2125.27    0.365    55.47






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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 17:15:21



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