Double Star Calculator - Orbit

Orbital Elements for A950AB
WDS: A950AB WDS ID/Discoverer
P: 197.000 Orbital period (years)
a: 0.345 Semi-major axis (arcseconds)
i: 64.0 Inclination (degrees)
Ω: 127.2 Longitude of ascending node (degrees)
T: 2037.000 Epoch of periastron passage (year)
e: 0.19 Eccentricity
ω: 208.0 Longitude of periastron (degrees)
Start-Year: 1926.5 Year
End-Year: 2123.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A950AB
Position: 014930.53+564450.9 Epoch-2000 right ascension and declination
WDS-ID: 01495+5645 WDS designation
Discoverer Code: A950AB Discover designation and components
ADS number: 1437 Aitken Double Star catalog
HD number: 236885 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.4 Magnitude of the primary
V2: 9.9 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Hei1998 Reference

Double Star Orbit for A950AB



WDS 6th Orbit including measures of A950AB

-- 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 A950AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.285   307.05
--------------------------
1926.50    0.399   132.85
1927.50    0.398   133.44
1928.50    0.397   134.03
1929.50    0.395   134.63
1930.50    0.393   135.23
1931.50    0.391   135.84
1932.50    0.389   136.45
1933.50    0.387   137.08
1934.50    0.384   137.71
1935.50    0.381   138.34
1936.50    0.379   138.99
1937.50    0.375   139.65
1938.50    0.372   140.32
1939.50    0.369   141.00
1940.50    0.365   141.70
1941.50    0.361   142.41
1942.50    0.357   143.13
1943.50    0.353   143.87
1944.50    0.349   144.63
1945.50    0.345   145.41
1946.50    0.340   146.21
1947.50    0.335   147.03
1948.50    0.331   147.87
1949.50    0.326   148.74
1950.50    0.321   149.64
1951.50    0.315   150.56
1952.50    0.310   151.52
1953.50    0.305   152.51
1954.50    0.299   153.54
1955.50    0.294   154.60
1956.50    0.288   155.71
1957.50    0.282   156.86
1958.50    0.276   158.06
1959.50    0.271   159.31
1960.50    0.265   160.62
1961.50    0.259   161.98
1962.50    0.253   163.41
1963.50    0.247   164.91
1964.50    0.241   166.48
1965.50    0.235   168.14
1966.50    0.229   169.88
1967.50    0.223   171.70
1968.50    0.218   173.63
1969.50    0.212   175.66
1970.50    0.207   177.79
1971.50    0.201   180.05
1972.50    0.196   182.42
1973.50    0.191   184.91
1974.50    0.186   187.54
1975.50    0.182   190.30
1976.50    0.178   193.19
1977.50    0.174   196.21
1978.50    0.171   199.36
1979.50    0.168   202.63
1980.50    0.165   206.02
1981.50    0.163   209.50
1982.50    0.161   213.06
1983.50    0.160   216.68
1984.50    0.160   220.35
1985.50    0.159   224.03
1986.50    0.160   227.71
1987.50    0.161   231.35
1988.50    0.162   234.95
1989.50    0.164   238.47
1990.50    0.166   241.90
1991.50    0.169   245.24
1992.50    0.172   248.45
1993.50    0.176   251.55
1994.50    0.179   254.52
1995.50    0.184   257.36
1996.50    0.188   260.07
1997.50    0.192   262.66
1998.50    0.197   265.13
1999.50    0.202   267.48
2000.50    0.207   269.73
2001.50    0.212   271.86
2002.50    0.217   273.90
2003.50    0.222   275.85
2004.50    0.227   277.71
2005.50    0.232   279.49
2006.50    0.237   281.20
2007.50    0.241   282.84
2008.50    0.246   284.42
2009.50    0.250   285.94
2010.50    0.255   287.41
2011.50    0.259   288.83
2012.50    0.263   290.21
2013.50    0.266   291.55
2014.50    0.270   292.86
2015.50    0.273   294.13
2016.50    0.275   295.38
2017.50    0.278   296.60
2018.50    0.280   297.80
2019.50    0.282   298.98
2020.50    0.284   300.15
2021.50    0.285   301.31
2022.50    0.286   302.46
2023.50    0.286   303.61
2024.50    0.286   304.75
2025.50    0.286   305.90
2026.50    0.285   307.05
2027.50    0.284   308.21
2028.50    0.282   309.38
2029.50    0.280   310.56
2030.50    0.278   311.76
2031.50    0.275   312.99
2032.50    0.272   314.24
2033.50    0.269   315.52
2034.50    0.265   316.83
2035.50    0.260   318.19
2036.50    0.256   319.60
2037.50    0.251   321.06
2038.50    0.246   322.58
2039.50    0.240   324.16
2040.50    0.234   325.83
2041.50    0.228   327.58
2042.50    0.222   329.42
2043.50    0.216   331.38
2044.50    0.209   333.46
2045.50    0.202   335.67
2046.50    0.196   338.03
2047.50    0.189   340.56
2048.50    0.182   343.27
2049.50    0.176   346.19
2050.50    0.170   349.33
2051.50    0.163   352.71
2052.50    0.158   356.34
2053.50    0.152     0.24
2054.50    0.147     4.41
2055.50    0.143     8.85
2056.50    0.140    13.53
2057.50    0.137    18.43
2058.50    0.135    23.51
2059.50    0.134    28.71
2060.50    0.134    33.96
2061.50    0.134    39.19
2062.50    0.136    44.33
2063.50    0.138    49.32
2064.50    0.142    54.10
2065.50    0.146    58.64
2066.50    0.150    62.92
2067.50    0.156    66.92
2068.50    0.162    70.64
2069.50    0.168    74.10
2070.50    0.174    77.30
2071.50    0.181    80.26
2072.50    0.188    83.01
2073.50    0.196    85.55
2074.50    0.203    87.91
2075.50    0.211    90.10
2076.50    0.218    92.13
2077.50    0.226    94.04
2078.50    0.233    95.82
2079.50    0.241    97.48
2080.50    0.248    99.05
2081.50    0.256   100.52
2082.50    0.263   101.91
2083.50    0.270   103.23
2084.50    0.277   104.48
2085.50    0.284   105.67
2086.50    0.291   106.80
2087.50    0.298   107.88
2088.50    0.304   108.92
2089.50    0.310   109.91
2090.50    0.317   110.86
2091.50    0.322   111.78
2092.50    0.328   112.66
2093.50    0.334   113.52
2094.50    0.339   114.34
2095.50    0.344   115.15
2096.50    0.349   115.93
2097.50    0.354   116.68
2098.50    0.358   117.42
2099.50    0.363   118.14
2100.50    0.367   118.85
2101.50    0.370   119.54
2102.50    0.374   120.21
2103.50    0.378   120.87
2104.50    0.381   121.53
2105.50    0.384   122.17
2106.50    0.386   122.80
2107.50    0.389   123.42
2108.50    0.391   124.04
2109.50    0.393   124.64
2110.50    0.395   125.25
2111.50    0.397   125.84
2112.50    0.398   126.44
2113.50    0.399   127.03
2114.50    0.400   127.61
2115.50    0.401   128.19
2116.50    0.401   128.78
2117.50    0.402   129.36
2118.50    0.402   129.94
2119.50    0.402   130.52
2120.50    0.401   131.10
2121.50    0.401   131.68
2122.50    0.400   132.26






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 14:53:58



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