Double Star Calculator - Orbit

Orbital Elements for A670
WDS: A670 WDS ID/Discoverer
P: 281.100 Orbital period (years)
a: 0.557 Semi-major axis (arcseconds)
i: 72.9 Inclination (degrees)
Ω: 3.8 Longitude of ascending node (degrees)
T: 1988.319 Epoch of periastron passage (year)
e: 0.753 Eccentricity
ω: 30.6 Longitude of periastron (degrees)
Start-Year: 1884.45 Year
End-Year: 2165.55 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A670
Position: 063155.31-093811.8 Epoch-2000 right ascension and declination
WDS-ID: 06319-0938 WDS designation
Discoverer Code: A670 Discover designation and components
ADS number: 5172 Aitken Double Star catalog
HD number: 46244 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.6 Magnitude of the primary
V2: 9.1 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2023 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: Tok2023a Reference

Double Star Orbit for A670



WDS 6th Orbit including measures of A670

-- 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 A670
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.565   181.06
--------------------------
1884.45    0.724   198.13
1885.45    0.720   198.28
1886.45    0.715   198.43
1887.45    0.710   198.58
1888.45    0.704   198.74
1889.45    0.699   198.89
1890.45    0.694   199.05
1891.45    0.689   199.21
1892.45    0.683   199.37
1893.45    0.678   199.54
1894.45    0.672   199.71
1895.45    0.667   199.88
1896.45    0.661   200.06
1897.45    0.655   200.23
1898.45    0.649   200.41
1899.45    0.643   200.60
1900.45    0.637   200.78
1901.45    0.631   200.98
1902.45    0.625   201.17
1903.45    0.619   201.37
1904.45    0.613   201.57
1905.45    0.606   201.78
1906.45    0.600   201.99
1907.45    0.593   202.21
1908.45    0.587   202.43
1909.45    0.580   202.65
1910.45    0.573   202.88
1911.45    0.567   203.12
1912.45    0.560   203.36
1913.45    0.553   203.61
1914.45    0.546   203.87
1915.45    0.539   204.13
1916.45    0.532   204.40
1917.45    0.524   204.67
1918.45    0.517   204.95
1919.45    0.510   205.25
1920.45    0.502   205.55
1921.45    0.494   205.86
1922.45    0.487   206.18
1923.45    0.479   206.51
1924.45    0.471   206.85
1925.45    0.463   207.20
1926.45    0.456   207.56
1927.45    0.448   207.94
1928.45    0.439   208.33
1929.45    0.431   208.74
1930.45    0.423   209.16
1931.45    0.415   209.60
1932.45    0.406   210.05
1933.45    0.398   210.53
1934.45    0.389   211.02
1935.45    0.381   211.54
1936.45    0.372   212.08
1937.45    0.364   212.65
1938.45    0.355   213.25
1939.45    0.346   213.87
1940.45    0.337   214.53
1941.45    0.328   215.23
1942.45    0.319   215.96
1943.45    0.310   216.74
1944.45    0.301   217.56
1945.45    0.292   218.44
1946.45    0.283   219.37
1947.45    0.273   220.37
1948.45    0.264   221.43
1949.45    0.255   222.58
1950.45    0.246   223.80
1951.45    0.236   225.13
1952.45    0.227   226.56
1953.45    0.218   228.12
1954.45    0.209   229.81
1955.45    0.200   231.65
1956.45    0.191   233.67
1957.45    0.182   235.89
1958.45    0.173   238.32
1959.45    0.165   241.02
1960.45    0.157   243.99
1961.45    0.149   247.29
1962.45    0.141   250.94
1963.45    0.135   254.99
1964.45    0.128   259.44
1965.45    0.123   264.34
1966.45    0.118   269.66
1967.45    0.114   275.38
1968.45    0.111   281.45
1969.45    0.110   287.77
1970.45    0.109   294.21
1971.45    0.110   300.64
1972.45    0.112   306.93
1973.45    0.114   312.97
1974.45    0.118   318.68
1975.45    0.122   324.01
1976.45    0.127   328.96
1977.45    0.132   333.53
1978.45    0.138   337.75
1979.45    0.143   341.66
1980.45    0.147   345.32
1981.45    0.151   348.77
1982.45    0.154   352.07
1983.45    0.155   355.29
1984.45    0.154   358.51
1985.45    0.150     1.84
1986.45    0.143     5.42
1987.45    0.132     9.47
1988.45    0.118    14.37
1989.45    0.101    20.77
1990.45    0.083    29.88
1991.45    0.066    43.98
1992.45    0.054    66.25
1993.45    0.051    95.31
1994.45    0.061   120.49
1995.45    0.078   136.79
1996.45    0.098   146.87
1997.45    0.119   153.45
1998.45    0.141   158.03
1999.45    0.162   161.41
2000.45    0.183   164.00
2001.45    0.203   166.07
2002.45    0.223   167.76
2003.45    0.242   169.19
2004.45    0.261   170.40
2005.45    0.279   171.45
2006.45    0.297   172.38
2007.45    0.314   173.20
2008.45    0.331   173.94
2009.45    0.347   174.61
2010.45    0.363   175.22
2011.45    0.378   175.78
2012.45    0.393   176.30
2013.45    0.407   176.78
2014.45    0.421   177.23
2015.45    0.435   177.65
2016.45    0.448   178.04
2017.45    0.461   178.41
2018.45    0.474   178.76
2019.45    0.486   179.10
2020.45    0.498   179.41
2021.45    0.510   179.72
2022.45    0.522   180.01
2023.45    0.533   180.28
2024.45    0.544   180.55
2025.45    0.554   180.80
2026.45    0.564   181.05
2027.45    0.575   181.29
2028.45    0.584   181.52
2029.45    0.594   181.74
2030.45    0.603   181.95
2031.45    0.612   182.16
2032.45    0.621   182.36
2033.45    0.630   182.56
2034.45    0.639   182.75
2035.45    0.647   182.93
2036.45    0.655   183.12
2037.45    0.663   183.29
2038.45    0.671   183.47
2039.45    0.678   183.64
2040.45    0.685   183.80
2041.45    0.693   183.96
2042.45    0.700   184.12
2043.45    0.706   184.28
2044.45    0.713   184.43
2045.45    0.720   184.58
2046.45    0.726   184.73
2047.45    0.732   184.87
2048.45    0.738   185.01
2049.45    0.744   185.15
2050.45    0.750   185.29
2051.45    0.755   185.43
2052.45    0.761   185.56
2053.45    0.766   185.69
2054.45    0.771   185.82
2055.45    0.776   185.95
2056.45    0.781   186.08
2057.45    0.786   186.20
2058.45    0.790   186.33
2059.45    0.795   186.45
2060.45    0.799   186.57
2061.45    0.803   186.69
2062.45    0.807   186.81
2063.45    0.811   186.93
2064.45    0.815   187.04
2065.45    0.819   187.16
2066.45    0.822   187.27
2067.45    0.826   187.39
2068.45    0.829   187.50
2069.45    0.832   187.61
2070.45    0.836   187.72
2071.45    0.839   187.83
2072.45    0.841   187.94
2073.45    0.844   188.05
2074.45    0.847   188.15
2075.45    0.850   188.26
2076.45    0.852   188.37
2077.45    0.854   188.47
2078.45    0.857   188.58
2079.45    0.859   188.68
2080.45    0.861   188.79
2081.45    0.863   188.89
2082.45    0.865   188.99
2083.45    0.866   189.10
2084.45    0.868   189.20
2085.45    0.870   189.30
2086.45    0.871   189.40
2087.45    0.873   189.50
2088.45    0.874   189.60
2089.45    0.875   189.70
2090.45    0.876   189.80
2091.45    0.877   189.90
2092.45    0.878   190.00
2093.45    0.879   190.10
2094.45    0.880   190.20
2095.45    0.880   190.30
2096.45    0.881   190.40
2097.45    0.881   190.50
2098.45    0.882   190.60
2099.45    0.882   190.70
2100.45    0.882   190.80
2101.45    0.882   190.90
2102.45    0.882   190.99
2103.45    0.882   191.09
2104.45    0.882   191.19
2105.45    0.882   191.29
2106.45    0.881   191.39
2107.45    0.881   191.49
2108.45    0.881   191.59
2109.45    0.880   191.69
2110.45    0.879   191.79
2111.45    0.879   191.89
2112.45    0.878   191.99
2113.45    0.877   192.09
2114.45    0.876   192.19
2115.45    0.875   192.29
2116.45    0.874   192.39
2117.45    0.872   192.49
2118.45    0.871   192.59
2119.45    0.870   192.69
2120.45    0.868   192.79
2121.45    0.867   192.89
2122.45    0.865   193.00
2123.45    0.864   193.10
2124.45    0.862   193.20
2125.45    0.860   193.31
2126.45    0.858   193.41
2127.45    0.856   193.52
2128.45    0.854   193.62
2129.45    0.852   193.73
2130.45    0.850   193.83
2131.45    0.847   193.94
2132.45    0.845   194.05
2133.45    0.842   194.15
2134.45    0.840   194.26
2135.45    0.837   194.37
2136.45    0.835   194.48
2137.45    0.832   194.59
2138.45    0.829   194.70
2139.45    0.826   194.82
2140.45    0.823   194.93
2141.45    0.820   195.04
2142.45    0.817   195.16
2143.45    0.814   195.27
2144.45    0.811   195.39
2145.45    0.807   195.51
2146.45    0.804   195.63
2147.45    0.800   195.75
2148.45    0.797   195.87
2149.45    0.793   195.99
2150.45    0.789   196.11
2151.45    0.786   196.24
2152.45    0.782   196.36
2153.45    0.778   196.49
2154.45    0.774   196.61
2155.45    0.770   196.74
2156.45    0.766   196.87
2157.45    0.761   197.01
2158.45    0.757   197.14
2159.45    0.753   197.27
2160.45    0.748   197.41
2161.45    0.744   197.55
2162.45    0.739   197.69
2163.45    0.735   197.83
2164.45    0.730   197.97
2165.45    0.725   198.12






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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 15:47:39



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