Double Star Calculator - Orbit

Orbital Elements for HDS2772

WDS:	HDS2772	WDS ID/Discoverer
P:	290.000	Orbital period (years)
a:	0.5913	Semi-major axis (arcseconds)
i:	64.4	Inclination (degrees)
Ω:	175.9	Longitude of ascending node (degrees)
T:	2019.614	Epoch of periastron passage (year)
e:	0.823	Eccentricity
ω:	111.2	Longitude of periastron (degrees)
Start-Year:	1880.0	Year
End-Year:	2170.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2772
Position:	193008.30-490357.4	Epoch-2000 right ascension and declination
WDS-ID:	19301-4904	WDS designation
Discoverer Code:	HDS2772	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	183074	HD catalog number
Hipparcos number:	95891	Hipparcos catalog number
V1:	10.10	Magnitude of the primary
V2:	13.00	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:	Tok2024c	Reference

Double Star Orbit for HDS2772

WDS 6th Orbit including measures of HDS2772

-- 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 HDS2772

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.186     7.25
--------------------------
1880.00    0.594   129.47
1881.00    0.596   129.77
1882.00    0.598   130.07
1883.00    0.599   130.37
1884.00    0.601   130.66
1885.00    0.603   130.96
1886.00    0.605   131.25
1887.00    0.606   131.54
1888.00    0.608   131.83
1889.00    0.610   132.11
1890.00    0.611   132.40
1891.00    0.613   132.68
1892.00    0.614   132.97
1893.00    0.616   133.25
1894.00    0.617   133.53
1895.00    0.618   133.81
1896.00    0.620   134.09
1897.00    0.621   134.36
1898.00    0.622   134.64
1899.00    0.624   134.91
1900.00    0.625   135.19
1901.00    0.626   135.46
1902.00    0.627   135.73
1903.00    0.628   136.00
1904.00    0.629   136.27
1905.00    0.630   136.54
1906.00    0.631   136.81
1907.00    0.632   137.07
1908.00    0.633   137.34
1909.00    0.634   137.60
1910.00    0.635   137.87
1911.00    0.636   138.13
1912.00    0.637   138.40
1913.00    0.637   138.66
1914.00    0.638   138.92
1915.00    0.638   139.18
1916.00    0.639   139.44
1917.00    0.640   139.70
1918.00    0.640   139.96
1919.00    0.640   140.22
1920.00    0.641   140.48
1921.00    0.641   140.74
1922.00    0.641   141.00
1923.00    0.642   141.26
1924.00    0.642   141.52
1925.00    0.642   141.78
1926.00    0.642   142.04
1927.00    0.642   142.29
1928.00    0.642   142.55
1929.00    0.642   142.81
1930.00    0.642   143.07
1931.00    0.642   143.33
1932.00    0.641   143.59
1933.00    0.641   143.85
1934.00    0.641   144.11
1935.00    0.640   144.37
1936.00    0.640   144.63
1937.00    0.639   144.89
1938.00    0.639   145.15
1939.00    0.638   145.41
1940.00    0.637   145.67
1941.00    0.636   145.93
1942.00    0.636   146.20
1943.00    0.635   146.46
1944.00    0.634   146.73
1945.00    0.633   146.99
1946.00    0.632   147.26
1947.00    0.630   147.53
1948.00    0.629   147.79
1949.00    0.628   148.06
1950.00    0.626   148.33
1951.00    0.625   148.61
1952.00    0.623   148.88
1953.00    0.621   149.16
1954.00    0.620   149.43
1955.00    0.618   149.71
1956.00    0.616   149.99
1957.00    0.614   150.27
1958.00    0.612   150.56
1959.00    0.610   150.84
1960.00    0.607   151.13
1961.00    0.605   151.42
1962.00    0.602   151.71
1963.00    0.600   152.01
1964.00    0.597   152.30
1965.00    0.594   152.60
1966.00    0.591   152.91
1967.00    0.588   153.21
1968.00    0.585   153.52
1969.00    0.582   153.84
1970.00    0.579   154.15
1971.00    0.575   154.47
1972.00    0.572   154.80
1973.00    0.568   155.12
1974.00    0.564   155.46
1975.00    0.560   155.79
1976.00    0.556   156.14
1977.00    0.551   156.48
1978.00    0.547   156.84
1979.00    0.542   157.20
1980.00    0.537   157.56
1981.00    0.532   157.94
1982.00    0.527   158.32
1983.00    0.522   158.70
1984.00    0.516   159.10
1985.00    0.510   159.50
1986.00    0.504   159.92
1987.00    0.498   160.34
1988.00    0.492   160.78
1989.00    0.485   161.22
1990.00    0.478   161.68
1991.00    0.471   162.15
1992.00    0.463   162.64
1993.00    0.456   163.15
1994.00    0.448   163.67
1995.00    0.439   164.21
1996.00    0.430   164.78
1997.00    0.421   165.36
1998.00    0.412   165.98
1999.00    0.402   166.62
2000.00    0.391   167.30
2001.00    0.380   168.02
2002.00    0.369   168.78
2003.00    0.357   169.58
2004.00    0.344   170.45
2005.00    0.331   171.39
2006.00    0.317   172.41
2007.00    0.302   173.52
2008.00    0.286   174.76
2009.00    0.269   176.14
2010.00    0.251   177.72
2011.00    0.231   179.56
2012.00    0.210   181.75
2013.00    0.188   184.44
2014.00    0.163   187.92
2015.00    0.137   192.68
2016.00    0.108   199.84
2017.00    0.079   212.22
2018.00    0.054   237.48
2019.00    0.047   282.84
2020.00    0.066   318.93
2021.00    0.092   336.69
2022.00    0.117   346.59
2023.00    0.138   353.19
2024.00    0.155   358.17
2025.00    0.169     2.21
2026.00    0.181     5.67
2027.00    0.191     8.74
2028.00    0.200    11.53
2029.00    0.207    14.11
2030.00    0.213    16.52
2031.00    0.219    18.80
2032.00    0.224    20.97
2033.00    0.228    23.05
2034.00    0.232    25.06
2035.00    0.236    27.00
2036.00    0.240    28.88
2037.00    0.243    30.71
2038.00    0.246    32.50
2039.00    0.249    34.24
2040.00    0.251    35.95
2041.00    0.254    37.62
2042.00    0.256    39.26
2043.00    0.259    40.87
2044.00    0.261    42.44
2045.00    0.263    43.99
2046.00    0.266    45.52
2047.00    0.268    47.02
2048.00    0.270    48.49
2049.00    0.272    49.94
2050.00    0.275    51.36
2051.00    0.277    52.76
2052.00    0.279    54.14
2053.00    0.281    55.50
2054.00    0.284    56.83
2055.00    0.286    58.15
2056.00    0.288    59.44
2057.00    0.290    60.71
2058.00    0.293    61.97
2059.00    0.295    63.20
2060.00    0.298    64.41
2061.00    0.300    65.60
2062.00    0.303    66.78
2063.00    0.305    67.93
2064.00    0.307    69.07
2065.00    0.310    70.19
2066.00    0.313    71.28
2067.00    0.315    72.37
2068.00    0.318    73.43
2069.00    0.320    74.48
2070.00    0.323    75.51
2071.00    0.326    76.52
2072.00    0.328    77.51
2073.00    0.331    78.49
2074.00    0.334    79.46
2075.00    0.337    80.40
2076.00    0.340    81.33
2077.00    0.342    82.25
2078.00    0.345    83.15
2079.00    0.348    84.04
2080.00    0.351    84.91
2081.00    0.354    85.77
2082.00    0.357    86.61
2083.00    0.360    87.44
2084.00    0.363    88.26
2085.00    0.366    89.06
2086.00    0.368    89.85
2087.00    0.371    90.63
2088.00    0.374    91.40
2089.00    0.377    92.15
2090.00    0.380    92.89
2091.00    0.383    93.62
2092.00    0.386    94.34
2093.00    0.389    95.05
2094.00    0.392    95.75
2095.00    0.396    96.43
2096.00    0.399    97.11
2097.00    0.402    97.78
2098.00    0.405    98.43
2099.00    0.408    99.08
2100.00    0.411    99.71
2101.00    0.414   100.34
2102.00    0.417   100.96
2103.00    0.420   101.57
2104.00    0.423   102.17
2105.00    0.426   102.76
2106.00    0.429   103.34
2107.00    0.432   103.92
2108.00    0.435   104.48
2109.00    0.438   105.04
2110.00    0.441   105.59
2111.00    0.444   106.14
2112.00    0.447   106.68
2113.00    0.450   107.20
2114.00    0.453   107.73
2115.00    0.456   108.24
2116.00    0.459   108.75
2117.00    0.462   109.26
2118.00    0.465   109.75
2119.00    0.468   110.24
2120.00    0.471   110.73
2121.00    0.474   111.20
2122.00    0.476   111.68
2123.00    0.479   112.14
2124.00    0.482   112.60
2125.00    0.485   113.06
2126.00    0.488   113.51
2127.00    0.491   113.95
2128.00    0.494   114.39
2129.00    0.496   114.83
2130.00    0.499   115.26
2131.00    0.502   115.68
2132.00    0.505   116.10
2133.00    0.507   116.52
2134.00    0.510   116.93
2135.00    0.513   117.34
2136.00    0.516   117.74
2137.00    0.518   118.14
2138.00    0.521   118.53
2139.00    0.524   118.92
2140.00    0.526   119.31
2141.00    0.529   119.69
2142.00    0.531   120.07
2143.00    0.534   120.45
2144.00    0.536   120.82
2145.00    0.539   121.19
2146.00    0.541   121.55
2147.00    0.544   121.92
2148.00    0.546   122.27
2149.00    0.549   122.63
2150.00    0.551   122.98
2151.00    0.554   123.33
2152.00    0.556   123.68
2153.00    0.558   124.02
2154.00    0.561   124.36
2155.00    0.563   124.70
2156.00    0.565   125.03
2157.00    0.567   125.36
2158.00    0.570   125.69
2159.00    0.572   126.02
2160.00    0.574   126.35
2161.00    0.576   126.67
2162.00    0.578   126.99
2163.00    0.580   127.31
2164.00    0.582   127.62
2165.00    0.584   127.93
2166.00    0.586   128.25
2167.00    0.588   128.55
2168.00    0.590   128.86
2169.00    0.592   129.17

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 18:04:43