Double Star Calculator - Orbit

Orbital Elements for RST628
WDS: RST628 WDS ID/Discoverer
P: 293.400 Orbital period (years)
a: 0.243 Semi-major axis (arcseconds)
i: 159.2 Inclination (degrees)
Ω: 155.3 Longitude of ascending node (degrees)
T: 2012.760 Epoch of periastron passage (year)
e: 0.706 Eccentricity
ω: 77.7 Longitude of periastron (degrees)
Start-Year: 1878.3 Year
End-Year: 2171.7 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for RST628
Position: 131358.84-484903.0 Epoch-2000 right ascension and declination
WDS-ID: 13140-4849 WDS designation
Discoverer Code: RST628 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 114854 HD catalog number
Hipparcos number: 64558 Hipparcos catalog number
V1: 9.11 Magnitude of the primary
V2: 9.56 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 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: Tok2022g Reference

Double Star Orbit for RST628



WDS 6th Orbit including measures of RST628

-- 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 RST628
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.123   345.73
--------------------------
1878.30    0.386   254.53
1879.30    0.386   254.20
1880.30    0.386   253.88
1881.30    0.385   253.56
1882.30    0.385   253.23
1883.30    0.384   252.91
1884.30    0.384   252.58
1885.30    0.383   252.26
1886.30    0.383   251.93
1887.30    0.382   251.60
1888.30    0.382   251.27
1889.30    0.381   250.94
1890.30    0.380   250.61
1891.30    0.380   250.28
1892.30    0.379   249.95
1893.30    0.378   249.61
1894.30    0.378   249.28
1895.30    0.377   248.94
1896.30    0.376   248.60
1897.30    0.375   248.26
1898.30    0.374   247.92
1899.30    0.373   247.58
1900.30    0.373   247.23
1901.30    0.372   246.88
1902.30    0.371   246.54
1903.30    0.370   246.19
1904.30    0.369   245.84
1905.30    0.368   245.48
1906.30    0.367   245.13
1907.30    0.366   244.77
1908.30    0.365   244.41
1909.30    0.364   244.05
1910.30    0.362   243.68
1911.30    0.361   243.32
1912.30    0.360   242.95
1913.30    0.359   242.58
1914.30    0.358   242.20
1915.30    0.356   241.83
1916.30    0.355   241.45
1917.30    0.354   241.06
1918.30    0.352   240.68
1919.30    0.351   240.29
1920.30    0.350   239.90
1921.30    0.348   239.51
1922.30    0.347   239.11
1923.30    0.345   238.71
1924.30    0.344   238.30
1925.30    0.342   237.90
1926.30    0.341   237.48
1927.30    0.339   237.07
1928.30    0.337   236.65
1929.30    0.336   236.23
1930.30    0.334   235.80
1931.30    0.332   235.37
1932.30    0.330   234.93
1933.30    0.329   234.49
1934.30    0.327   234.04
1935.30    0.325   233.59
1936.30    0.323   233.13
1937.30    0.321   232.67
1938.30    0.319   232.20
1939.30    0.317   231.73
1940.30    0.315   231.25
1941.30    0.313   230.77
1942.30    0.311   230.27
1943.30    0.309   229.78
1944.30    0.307   229.27
1945.30    0.305   228.76
1946.30    0.303   228.24
1947.30    0.300   227.71
1948.30    0.298   227.18
1949.30    0.296   226.63
1950.30    0.294   226.08
1951.30    0.291   225.52
1952.30    0.289   224.95
1953.30    0.286   224.37
1954.30    0.284   223.78
1955.30    0.281   223.18
1956.30    0.279   222.57
1957.30    0.276   221.94
1958.30    0.274   221.31
1959.30    0.271   220.66
1960.30    0.268   220.00
1961.30    0.265   219.33
1962.30    0.263   218.64
1963.30    0.260   217.94
1964.30    0.257   217.22
1965.30    0.254   216.48
1966.30    0.251   215.73
1967.30    0.248   214.96
1968.30    0.245   214.17
1969.30    0.242   213.36
1970.30    0.239   212.53
1971.30    0.235   211.68
1972.30    0.232   210.80
1973.30    0.229   209.90
1974.30    0.226   208.97
1975.30    0.222   208.01
1976.30    0.219   207.02
1977.30    0.215   206.00
1978.30    0.212   204.95
1979.30    0.208   203.86
1980.30    0.204   202.73
1981.30    0.200   201.56
1982.30    0.197   200.34
1983.30    0.193   199.07
1984.30    0.189   197.76
1985.30    0.185   196.38
1986.30    0.181   194.95
1987.30    0.177   193.45
1988.30    0.173   191.88
1989.30    0.168   190.22
1990.30    0.164   188.49
1991.30    0.160   186.65
1992.30    0.155   184.71
1993.30    0.151   182.66
1994.30    0.146   180.48
1995.30    0.141   178.15
1996.30    0.136   175.66
1997.30    0.132   172.99
1998.30    0.127   170.12
1999.30    0.122   167.01
2000.30    0.117   163.64
2001.30    0.112   159.97
2002.30    0.107   155.95
2003.30    0.102   151.53
2004.30    0.097   146.65
2005.30    0.092   141.23
2006.30    0.087   135.20
2007.30    0.082   128.49
2008.30    0.078   121.00
2009.30    0.074   112.71
2010.30    0.071   103.59
2011.30    0.069    93.73
2012.30    0.067    83.33
2013.30    0.067    72.65
2014.30    0.068    62.06
2015.30    0.070    51.88
2016.30    0.073    42.37
2017.30    0.076    33.67
2018.30    0.080    25.83
2019.30    0.085    18.81
2020.30    0.090    12.55
2021.30    0.095     6.96
2022.30    0.101     1.96
2023.30    0.106   357.46
2024.30    0.111   353.41
2025.30    0.117   349.72
2026.30    0.122   346.37
2027.30    0.128   343.30
2028.30    0.133   340.47
2029.30    0.138   337.85
2030.30    0.143   335.43
2031.30    0.148   333.17
2032.30    0.153   331.05
2033.30    0.158   329.07
2034.30    0.163   327.21
2035.30    0.167   325.45
2036.30    0.172   323.78
2037.30    0.177   322.21
2038.30    0.181   320.71
2039.30    0.185   319.28
2040.30    0.190   317.91
2041.30    0.194   316.61
2042.30    0.198   315.36
2043.30    0.202   314.16
2044.30    0.206   313.01
2045.30    0.210   311.90
2046.30    0.214   310.84
2047.30    0.218   309.81
2048.30    0.221   308.81
2049.30    0.225   307.85
2050.30    0.229   306.92
2051.30    0.232   306.01
2052.30    0.236   305.14
2053.30    0.239   304.28
2054.30    0.242   303.46
2055.30    0.246   302.65
2056.30    0.249   301.87
2057.30    0.252   301.10
2058.30    0.255   300.36
2059.30    0.258   299.63
2060.30    0.261   298.92
2061.30    0.264   298.23
2062.30    0.267   297.55
2063.30    0.270   296.88
2064.30    0.273   296.23
2065.30    0.276   295.59
2066.30    0.279   294.97
2067.30    0.281   294.36
2068.30    0.284   293.76
2069.30    0.286   293.17
2070.30    0.289   292.59
2071.30    0.292   292.02
2072.30    0.294   291.46
2073.30    0.297   290.91
2074.30    0.299   290.37
2075.30    0.301   289.84
2076.30    0.304   289.31
2077.30    0.306   288.80
2078.30    0.308   288.29
2079.30    0.310   287.78
2080.30    0.312   287.29
2081.30    0.315   286.80
2082.30    0.317   286.32
2083.30    0.319   285.85
2084.30    0.321   285.38
2085.30    0.323   284.91
2086.30    0.325   284.46
2087.30    0.327   284.00
2088.30    0.329   283.56
2089.30    0.330   283.11
2090.30    0.332   282.68
2091.30    0.334   282.24
2092.30    0.336   281.82
2093.30    0.337   281.39
2094.30    0.339   280.97
2095.30    0.341   280.56
2096.30    0.342   280.15
2097.30    0.344   279.74
2098.30    0.346   279.34
2099.30    0.347   278.94
2100.30    0.349   278.54
2101.30    0.350   278.15
2102.30    0.351   277.76
2103.30    0.353   277.37
2104.30    0.354   276.99
2105.30    0.356   276.61
2106.30    0.357   276.23
2107.30    0.358   275.85
2108.30    0.359   275.48
2109.30    0.361   275.11
2110.30    0.362   274.74
2111.30    0.363   274.38
2112.30    0.364   274.02
2113.30    0.365   273.66
2114.30    0.366   273.30
2115.30    0.367   272.94
2116.30    0.369   272.59
2117.30    0.370   272.23
2118.30    0.371   271.88
2119.30    0.371   271.54
2120.30    0.372   271.19
2121.30    0.373   270.84
2122.30    0.374   270.50
2123.30    0.375   270.16
2124.30    0.376   269.82
2125.30    0.377   269.48
2126.30    0.377   269.14
2127.30    0.378   268.81
2128.30    0.379   268.47
2129.30    0.380   268.14
2130.30    0.380   267.81
2131.30    0.381   267.47
2132.30    0.382   267.14
2133.30    0.382   266.81
2134.30    0.383   266.49
2135.30    0.383   266.16
2136.30    0.384   265.83
2137.30    0.384   265.51
2138.30    0.385   265.18
2139.30    0.385   264.86
2140.30    0.386   264.54
2141.30    0.386   264.21
2142.30    0.386   263.89
2143.30    0.387   263.57
2144.30    0.387   263.25
2145.30    0.387   262.93
2146.30    0.388   262.61
2147.30    0.388   262.29
2148.30    0.388   261.97
2149.30    0.388   261.65
2150.30    0.388   261.34
2151.30    0.388   261.02
2152.30    0.389   260.70
2153.30    0.389   260.38
2154.30    0.389   260.07
2155.30    0.389   259.75
2156.30    0.389   259.43
2157.30    0.389   259.11
2158.30    0.389   258.80
2159.30    0.389   258.48
2160.30    0.389   258.16
2161.30    0.389   257.84
2162.30    0.389   257.53
2163.30    0.388   257.21
2164.30    0.388   256.89
2165.30    0.388   256.57
2166.30    0.388   256.25
2167.30    0.388   255.93
2168.30    0.387   255.62
2169.30    0.387   255.30
2170.30    0.387   254.97
2171.30    0.386   254.65






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 16:53:50



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