Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:51:43

Orbital Elements for SIG3
WDS: SIG3 WDS ID/Discoverer
P: 317.000 Orbital period (years)
a: 0.728 Semi-major axis (arcseconds)
i: 44.0 Inclination (degrees)
Ω: 99.0 Longitude of ascending node (degrees)
T: 2004.300 Epoch of periastron passage (year)
e: 0.71 Eccentricity
ω: 267.0 Longitude of periastron (degrees)
Start-Year: 1867.0 Year
End-Year: 2183.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SIG3
Position: 175012.91+442404.3 Epoch-2000 right ascension and declination
WDS-ID: 17502+4424 WDS designation
Discoverer Code: SIG3 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 13.2 k Magnitude of the primary
V2: 14.0 k Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for SIG3



WDS 6th Orbit including measures of SIG3

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of SIG3
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.448    109.0
-------------------------
1867.0     0.885    193.0
1868.0     0.884    193.3
1869.0     0.883    193.7
1870.0     0.883    194.1
1871.0     0.882    194.5
1872.0     0.881    194.9
1873.0     0.879    195.3
1874.0     0.878    195.7
1875.0     0.877    196.1
1876.0     0.876    196.5
1877.0     0.875    196.9
1878.0     0.874    197.3
1879.0     0.873    197.7
1880.0     0.871    198.1
1881.0     0.870    198.5
1882.0     0.869    198.9
1883.0     0.867    199.3
1884.0     0.866    199.7
1885.0     0.864    200.1
1886.0     0.863    200.5
1887.0     0.861    200.9
1888.0     0.860    201.3
1889.0     0.858    201.8
1890.0     0.857    202.2
1891.0     0.855    202.6
1892.0     0.853    203.0
1893.0     0.852    203.4
1894.0     0.850    203.8
1895.0     0.848    204.3
1896.0     0.846    204.7
1897.0     0.845    205.1
1898.0     0.843    205.5
1899.0     0.841    206.0
1900.0     0.839    206.4
1901.0     0.837    206.8
1902.0     0.835    207.3
1903.0     0.833    207.7
1904.0     0.831    208.2
1905.0     0.828    208.6
1906.0     0.826    209.0
1907.0     0.824    209.5
1908.0     0.822    209.9
1909.0     0.819    210.4
1910.0     0.817    210.9
1911.0     0.815    211.3
1912.0     0.812    211.8
1913.0     0.810    212.2
1914.0     0.807    212.7
1915.0     0.805    213.2
1916.0     0.802    213.6
1917.0     0.799    214.1
1918.0     0.797    214.6
1919.0     0.794    215.1
1920.0     0.791    215.6
1921.0     0.788    216.1
1922.0     0.785    216.6
1923.0     0.782    217.0
1924.0     0.779    217.5
1925.0     0.776    218.1
1926.0     0.773    218.6
1927.0     0.770    219.1
1928.0     0.767    219.6
1929.0     0.764    220.1
1930.0     0.760    220.6
1931.0     0.757    221.2
1932.0     0.753    221.7
1933.0     0.750    222.2
1934.0     0.746    222.8
1935.0     0.743    223.3
1936.0     0.739    223.9
1937.0     0.735    224.4
1938.0     0.732    225.0
1939.0     0.728    225.6
1940.0     0.724    226.2
1941.0     0.720    226.8
1942.0     0.716    227.3
1943.0     0.712    227.9
1944.0     0.707    228.5
1945.0     0.703    229.2
1946.0     0.699    229.8
1947.0     0.694    230.4
1948.0     0.690    231.0
1949.0     0.685    231.7
1950.0     0.680    232.3
1951.0     0.675    233.0
1952.0     0.671    233.7
1953.0     0.666    234.4
1954.0     0.661    235.1
1955.0     0.655    235.8
1956.0     0.650    236.5
1957.0     0.645    237.2
1958.0     0.639    237.9
1959.0     0.634    238.7
1960.0     0.628    239.5
1961.0     0.622    240.2
1962.0     0.616    241.0
1963.0     0.610    241.9
1964.0     0.604    242.7
1965.0     0.597    243.5
1966.0     0.591    244.4
1967.0     0.584    245.3
1968.0     0.577    246.2
1969.0     0.570    247.1
1970.0     0.563    248.1
1971.0     0.555    249.0
1972.0     0.548    250.0
1973.0     0.540    251.1
1974.0     0.532    252.1
1975.0     0.524    253.2
1976.0     0.515    254.4
1977.0     0.506    255.5
1978.0     0.497    256.7
1979.0     0.488    258.0
1980.0     0.479    259.3
1981.0     0.469    260.7
1982.0     0.458    262.1
1983.0     0.448    263.6
1984.0     0.437    265.1
1985.0     0.426    266.8
1986.0     0.414    268.5
1987.0     0.402    270.3
1988.0     0.389    272.3
1989.0     0.376    274.4
1990.0     0.362    276.6
1991.0     0.348    279.0
1992.0     0.333    281.6
1993.0     0.318    284.5
1994.0     0.302    287.7
1995.0     0.285    291.2
1996.0     0.268    295.2
1997.0     0.251    299.8
1998.0     0.233    305.0
1999.0     0.215    311.1
2000.0     0.198    318.3
2001.0     0.182    326.7
2002.0     0.168    336.7
2003.0     0.158    348.2
2004.0     0.153      0.9
2005.0     0.153     14.1
2006.0     0.158     26.8
2007.0     0.168     38.3
2008.0     0.182     48.3
2009.0     0.198     56.8
2010.0     0.215     64.0
2011.0     0.233     70.1
2012.0     0.252     75.3
2013.0     0.270     79.8
2014.0     0.287     83.7
2015.0     0.305     87.2
2016.0     0.321     90.3
2017.0     0.338     93.1
2018.0     0.353     95.7
2019.0     0.368     98.0
2020.0     0.383    100.2
2021.0     0.397    102.2
2022.0     0.410    104.0
2023.0     0.423    105.8
2024.0     0.436    107.5
2025.0     0.448    109.0
2026.0     0.460    110.5
2027.0     0.471    111.9
2028.0     0.482    113.2
2029.0     0.492    114.5
2030.0     0.503    115.8
2031.0     0.513    116.9
2032.0     0.522    118.1
2033.0     0.532    119.2
2034.0     0.541    120.2
2035.0     0.550    121.3
2036.0     0.558    122.3
2037.0     0.566    123.2
2038.0     0.575    124.2
2039.0     0.583    125.1
2040.0     0.590    126.0
2041.0     0.598    126.8
2042.0     0.605    127.7
2043.0     0.612    128.5
2044.0     0.619    129.3
2045.0     0.626    130.1
2046.0     0.633    130.9
2047.0     0.639    131.6
2048.0     0.645    132.3
2049.0     0.652    133.1
2050.0     0.658    133.8
2051.0     0.664    134.5
2052.0     0.669    135.2
2053.0     0.675    135.8
2054.0     0.681    136.5
2055.0     0.686    137.2
2056.0     0.691    137.8
2057.0     0.696    138.4
2058.0     0.702    139.1
2059.0     0.706    139.7
2060.0     0.711    140.3
2061.0     0.716    140.9
2062.0     0.721    141.5
2063.0     0.725    142.1
2064.0     0.730    142.6
2065.0     0.734    143.2
2066.0     0.738    143.8
2067.0     0.743    144.3
2068.0     0.747    144.9
2069.0     0.751    145.4
2070.0     0.755    145.9
2071.0     0.759    146.5
2072.0     0.762    147.0
2073.0     0.766    147.5
2074.0     0.770    148.0
2075.0     0.773    148.6
2076.0     0.777    149.1
2077.0     0.780    149.6
2078.0     0.784    150.1
2079.0     0.787    150.6
2080.0     0.790    151.1
2081.0     0.793    151.5
2082.0     0.797    152.0
2083.0     0.800    152.5
2084.0     0.803    153.0
2085.0     0.805    153.4
2086.0     0.808    153.9
2087.0     0.811    154.4
2088.0     0.814    154.8
2089.0     0.817    155.3
2090.0     0.819    155.8
2091.0     0.822    156.2
2092.0     0.824    156.7
2093.0     0.827    157.1
2094.0     0.829    157.5
2095.0     0.832    158.0
2096.0     0.834    158.4
2097.0     0.836    158.9
2098.0     0.838    159.3
2099.0     0.840    159.7
2100.0     0.843    160.2
2101.0     0.845    160.6
2102.0     0.847    161.0
2103.0     0.849    161.4
2104.0     0.851    161.9
2105.0     0.852    162.3
2106.0     0.854    162.7
2107.0     0.856    163.1
2108.0     0.858    163.5
2109.0     0.860    164.0
2110.0     0.861    164.4
2111.0     0.863    164.8
2112.0     0.864    165.2
2113.0     0.866    165.6
2114.0     0.867    166.0
2115.0     0.869    166.4
2116.0     0.870    166.8
2117.0     0.872    167.2
2118.0     0.873    167.6
2119.0     0.874    168.0
2120.0     0.876    168.4
2121.0     0.877    168.8
2122.0     0.878    169.2
2123.0     0.879    169.6
2124.0     0.880    170.0
2125.0     0.881    170.4
2126.0     0.882    170.8
2127.0     0.883    171.2
2128.0     0.884    171.6
2129.0     0.885    171.9
2130.0     0.886    172.3
2131.0     0.887    172.7
2132.0     0.888    173.1
2133.0     0.889    173.5
2134.0     0.889    173.9
2135.0     0.890    174.3
2136.0     0.891    174.6
2137.0     0.891    175.0
2138.0     0.892    175.4
2139.0     0.893    175.8
2140.0     0.893    176.2
2141.0     0.894    176.6
2142.0     0.894    176.9
2143.0     0.895    177.3
2144.0     0.895    177.7
2145.0     0.895    178.1
2146.0     0.896    178.5
2147.0     0.896    178.8
2148.0     0.896    179.2
2149.0     0.897    179.6
2150.0     0.897    180.0
2151.0     0.897    180.4
2152.0     0.897    180.7
2153.0     0.897    181.1
2154.0     0.897    181.5
2155.0     0.897    181.9
2156.0     0.897    182.3
2157.0     0.897    182.6
2158.0     0.897    183.0
2159.0     0.897    183.4
2160.0     0.897    183.8
2161.0     0.897    184.2
2162.0     0.897    184.5
2163.0     0.897    184.9
2164.0     0.896    185.3
2165.0     0.896    185.7
2166.0     0.896    186.0
2167.0     0.895    186.4
2168.0     0.895    186.8
2169.0     0.895    187.2
2170.0     0.894    187.6
2171.0     0.894    188.0
2172.0     0.893    188.3
2173.0     0.893    188.7
2174.0     0.892    189.1
2175.0     0.892    189.5
2176.0     0.891    189.9
2177.0     0.891    190.2
2178.0     0.890    190.6
2179.0     0.889    191.0
2180.0     0.888    191.4
2181.0     0.888    191.8
2182.0     0.887    192.2






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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