Double Star Calculator - Orbit

Orbital Elements for DAW120
WDS: DAW120 WDS ID/Discoverer
P: 375.000 Orbital period (years)
a: 0.407 Semi-major axis (arcseconds)
i: 83.8 Inclination (degrees)
Ω: 84.8 Longitude of ascending node (degrees)
T: 2034.820 Epoch of periastron passage (year)
e: 0.27 Eccentricity
ω: 145.4 Longitude of periastron (degrees)
Start-Year: 1837.5 Year
End-Year: 2212.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for DAW120
Position: 062325.77-300100.4 Epoch-2000 right ascension and declination
WDS-ID: 06234-3001 WDS designation
Discoverer Code: DAW120 Discover designation and components
ADS number: 5019 Aitken Double Star catalog
HD number: 44970 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.2 Magnitude of the primary
V2: 9.4 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2019 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: Tok2020g Reference

Double Star Orbit for DAW120



WDS 6th Orbit including measures of DAW120

-- 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 DAW120
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.198   257.73
--------------------------
1837.50    0.396    79.58
1838.50    0.399    79.68
1839.50    0.402    79.79
1840.50    0.406    79.89
1841.50    0.409    79.99
1842.50    0.412    80.09
1843.50    0.415    80.18
1844.50    0.418    80.28
1845.50    0.421    80.37
1846.50    0.424    80.46
1847.50    0.427    80.56
1848.50    0.430    80.65
1849.50    0.433    80.73
1850.50    0.436    80.82
1851.50    0.438    80.91
1852.50    0.441    80.99
1853.50    0.443    81.08
1854.50    0.446    81.16
1855.50    0.448    81.25
1856.50    0.451    81.33
1857.50    0.453    81.41
1858.50    0.455    81.49
1859.50    0.458    81.57
1860.50    0.460    81.65
1861.50    0.462    81.72
1862.50    0.464    81.80
1863.50    0.466    81.88
1864.50    0.468    81.95
1865.50    0.469    82.03
1866.50    0.471    82.10
1867.50    0.473    82.18
1868.50    0.474    82.25
1869.50    0.476    82.33
1870.50    0.477    82.40
1871.50    0.479    82.47
1872.50    0.480    82.54
1873.50    0.482    82.61
1874.50    0.483    82.68
1875.50    0.484    82.76
1876.50    0.485    82.83
1877.50    0.486    82.90
1878.50    0.487    82.97
1879.50    0.488    83.04
1880.50    0.489    83.11
1881.50    0.489    83.17
1882.50    0.490    83.24
1883.50    0.491    83.31
1884.50    0.491    83.38
1885.50    0.492    83.45
1886.50    0.492    83.52
1887.50    0.492    83.59
1888.50    0.492    83.65
1889.50    0.493    83.72
1890.50    0.493    83.79
1891.50    0.493    83.86
1892.50    0.493    83.93
1893.50    0.492    83.99
1894.50    0.492    84.06
1895.50    0.492    84.13
1896.50    0.492    84.20
1897.50    0.491    84.27
1898.50    0.491    84.34
1899.50    0.490    84.41
1900.50    0.489    84.47
1901.50    0.489    84.54
1902.50    0.488    84.61
1903.50    0.487    84.68
1904.50    0.486    84.75
1905.50    0.485    84.82
1906.50    0.484    84.89
1907.50    0.482    84.96
1908.50    0.481    85.04
1909.50    0.480    85.11
1910.50    0.478    85.18
1911.50    0.477    85.25
1912.50    0.475    85.32
1913.50    0.473    85.40
1914.50    0.472    85.47
1915.50    0.470    85.55
1916.50    0.468    85.62
1917.50    0.466    85.70
1918.50    0.463    85.77
1919.50    0.461    85.85
1920.50    0.459    85.93
1921.50    0.457    86.01
1922.50    0.454    86.09
1923.50    0.452    86.17
1924.50    0.449    86.25
1925.50    0.446    86.33
1926.50    0.443    86.42
1927.50    0.440    86.50
1928.50    0.437    86.59
1929.50    0.434    86.67
1930.50    0.431    86.76
1931.50    0.428    86.85
1932.50    0.425    86.94
1933.50    0.421    87.04
1934.50    0.418    87.13
1935.50    0.414    87.23
1936.50    0.410    87.32
1937.50    0.407    87.42
1938.50    0.403    87.52
1939.50    0.399    87.63
1940.50    0.395    87.73
1941.50    0.391    87.84
1942.50    0.386    87.95
1943.50    0.382    88.06
1944.50    0.378    88.17
1945.50    0.373    88.29
1946.50    0.369    88.41
1947.50    0.364    88.54
1948.50    0.359    88.66
1949.50    0.354    88.79
1950.50    0.349    88.93
1951.50    0.344    89.06
1952.50    0.339    89.20
1953.50    0.334    89.35
1954.50    0.329    89.50
1955.50    0.323    89.66
1956.50    0.318    89.82
1957.50    0.312    89.98
1958.50    0.307    90.16
1959.50    0.301    90.33
1960.50    0.295    90.52
1961.50    0.289    90.71
1962.50    0.284    90.92
1963.50    0.277    91.13
1964.50    0.271    91.35
1965.50    0.265    91.57
1966.50    0.259    91.82
1967.50    0.253    92.07
1968.50    0.246    92.33
1969.50    0.240    92.62
1970.50    0.233    92.91
1971.50    0.226    93.23
1972.50    0.220    93.56
1973.50    0.213    93.91
1974.50    0.206    94.29
1975.50    0.199    94.69
1976.50    0.192    95.13
1977.50    0.185    95.59
1978.50    0.178    96.09
1979.50    0.171    96.64
1980.50    0.163    97.23
1981.50    0.156    97.88
1982.50    0.149    98.59
1983.50    0.142    99.37
1984.50    0.134   100.24
1985.50    0.127   101.21
1986.50    0.119   102.31
1987.50    0.112   103.54
1988.50    0.105   104.95
1989.50    0.097   106.58
1990.50    0.090   108.47
1991.50    0.083   110.69
1992.50    0.076   113.33
1993.50    0.069   116.52
1994.50    0.062   120.42
1995.50    0.055   125.25
1996.50    0.049   131.29
1997.50    0.044   138.88
1998.50    0.040   148.32
1999.50    0.037   159.67
2000.50    0.035   172.47
2001.50    0.036   185.63
2002.50    0.038   197.86
2003.50    0.042   208.34
2004.50    0.047   216.88
2005.50    0.052   223.71
2006.50    0.058   229.15
2007.50    0.065   233.52
2008.50    0.072   237.07
2009.50    0.079   239.99
2010.50    0.086   242.43
2011.50    0.093   244.49
2012.50    0.100   246.26
2013.50    0.108   247.79
2014.50    0.115   249.12
2015.50    0.122   250.29
2016.50    0.130   251.34
2017.50    0.137   252.27
2018.50    0.144   253.11
2019.50    0.151   253.87
2020.50    0.158   254.56
2021.50    0.165   255.20
2022.50    0.172   255.78
2023.50    0.178   256.32
2024.50    0.185   256.82
2025.50    0.192   257.29
2026.50    0.198   257.73
2027.50    0.204   258.14
2028.50    0.210   258.52
2029.50    0.216   258.88
2030.50    0.222   259.23
2031.50    0.228   259.56
2032.50    0.233   259.87
2033.50    0.238   260.17
2034.50    0.244   260.45
2035.50    0.249   260.72
2036.50    0.253   260.99
2037.50    0.258   261.24
2038.50    0.263   261.48
2039.50    0.267   261.72
2040.50    0.271   261.95
2041.50    0.275   262.17
2042.50    0.279   262.39
2043.50    0.282   262.60
2044.50    0.285   262.80
2045.50    0.289   263.00
2046.50    0.292   263.20
2047.50    0.294   263.39
2048.50    0.297   263.58
2049.50    0.299   263.77
2050.50    0.301   263.95
2051.50    0.303   264.13
2052.50    0.305   264.31
2053.50    0.306   264.49
2054.50    0.308   264.66
2055.50    0.309   264.84
2056.50    0.310   265.01
2057.50    0.311   265.18
2058.50    0.311   265.35
2059.50    0.312   265.52
2060.50    0.312   265.69
2061.50    0.312   265.86
2062.50    0.312   266.03
2063.50    0.311   266.20
2064.50    0.311   266.37
2065.50    0.310   266.55
2066.50    0.309   266.72
2067.50    0.308   266.89
2068.50    0.307   267.07
2069.50    0.305   267.24
2070.50    0.304   267.42
2071.50    0.302   267.60
2072.50    0.300   267.78
2073.50    0.298   267.97
2074.50    0.296   268.16
2075.50    0.294   268.35
2076.50    0.291   268.54
2077.50    0.289   268.74
2078.50    0.286   268.94
2079.50    0.283   269.14
2080.50    0.280   269.35
2081.50    0.277   269.56
2082.50    0.274   269.78
2083.50    0.270   270.01
2084.50    0.267   270.23
2085.50    0.263   270.47
2086.50    0.260   270.71
2087.50    0.256   270.96
2088.50    0.252   271.22
2089.50    0.248   271.48
2090.50    0.244   271.75
2091.50    0.240   272.04
2092.50    0.236   272.33
2093.50    0.231   272.63
2094.50    0.227   272.95
2095.50    0.223   273.27
2096.50    0.218   273.61
2097.50    0.213   273.97
2098.50    0.209   274.34
2099.50    0.204   274.73
2100.50    0.199   275.14
2101.50    0.194   275.56
2102.50    0.189   276.01
2103.50    0.184   276.49
2104.50    0.179   276.99
2105.50    0.174   277.52
2106.50    0.169   278.08
2107.50    0.164   278.67
2108.50    0.159   279.30
2109.50    0.154   279.98
2110.50    0.149   280.70
2111.50    0.143   281.48
2112.50    0.138   282.31
2113.50    0.133   283.21
2114.50    0.128   284.18
2115.50    0.123   285.24
2116.50    0.117   286.39
2117.50    0.112   287.65
2118.50    0.107   289.03
2119.50    0.102   290.55
2120.50    0.097   292.22
2121.50    0.092   294.09
2122.50    0.087   296.16
2123.50    0.082   298.48
2124.50    0.077   301.09
2125.50    0.073   304.03
2126.50    0.069   307.34
2127.50    0.064   311.09
2128.50    0.061   315.33
2129.50    0.057   320.10
2130.50    0.054   325.43
2131.50    0.052   331.33
2132.50    0.050   337.75
2133.50    0.049   344.58
2134.50    0.048   351.66
2135.50    0.048   358.78
2136.50    0.049     5.74
2137.50    0.051    12.35
2138.50    0.053    18.47
2139.50    0.056    24.05
2140.50    0.059    29.05
2141.50    0.063    33.50
2142.50    0.067    37.45
2143.50    0.071    40.93
2144.50    0.075    44.02
2145.50    0.080    46.76
2146.50    0.085    49.19
2147.50    0.090    51.36
2148.50    0.095    53.30
2149.50    0.100    55.05
2150.50    0.105    56.63
2151.50    0.110    58.06
2152.50    0.115    59.36
2153.50    0.121    60.54
2154.50    0.126    61.63
2155.50    0.131    62.63
2156.50    0.137    63.55
2157.50    0.142    64.40
2158.50    0.147    65.19
2159.50    0.153    65.93
2160.50    0.158    66.61
2161.50    0.163    67.25
2162.50    0.169    67.85
2163.50    0.174    68.42
2164.50    0.179    68.95
2165.50    0.185    69.45
2166.50    0.190    69.92
2167.50    0.195    70.37
2168.50    0.200    70.79
2169.50    0.206    71.19
2170.50    0.211    71.57
2171.50    0.216    71.94
2172.50    0.221    72.28
2173.50    0.226    72.61
2174.50    0.231    72.93
2175.50    0.236    73.23
2176.50    0.241    73.52
2177.50    0.246    73.80
2178.50    0.251    74.07
2179.50    0.256    74.32
2180.50    0.261    74.57
2181.50    0.266    74.81
2182.50    0.271    75.04
2183.50    0.276    75.26
2184.50    0.280    75.48
2185.50    0.285    75.68
2186.50    0.290    75.88
2187.50    0.294    76.08
2188.50    0.299    76.26
2189.50    0.303    76.45
2190.50    0.308    76.62
2191.50    0.312    76.80
2192.50    0.317    76.96
2193.50    0.321    77.13
2194.50    0.326    77.28
2195.50    0.330    77.44
2196.50    0.334    77.59
2197.50    0.338    77.73
2198.50    0.342    77.88
2199.50    0.347    78.02
2200.50    0.351    78.15
2201.50    0.355    78.29
2202.50    0.359    78.42
2203.50    0.363    78.54
2204.50    0.366    78.67
2205.50    0.370    78.79
2206.50    0.374    78.91
2207.50    0.378    79.03
2208.50    0.381    79.14
2209.50    0.385    79.25
2210.50    0.389    79.36
2211.50    0.392    79.47






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 15:46:26



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