Double Star Calculator - Orbit

Orbital Elements for A2757
WDS: A2757 WDS ID/Discoverer
P: 254.300 Orbital period (years)
a: 0.324 Semi-major axis (arcseconds)
i: 133.0 Inclination (degrees)
Ω: 56.6 Longitude of ascending node (degrees)
T: 2069.480 Epoch of periastron passage (year)
e: 0.176 Eccentricity
ω: 101.0 Longitude of periastron (degrees)
Start-Year: 1897.85 Year
End-Year: 2152.15 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A2757
Position: 093451.06+051451.5 Epoch-2000 right ascension and declination
WDS-ID: 09349+0515 WDS designation
Discoverer Code: A2757 Discover designation and components
ADS number: 7435 Aitken Double Star catalog
HD number: 82867 HD catalog number
Hipparcos number: 47008 Hipparcos catalog number
V1: 9.42 Magnitude of the primary
V2: 10.11 Magnitude of the secondary
Equinox: Equinox
Date: 2022 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Lin2022b Reference

Double Star Orbit for A2757



WDS 6th Orbit including measures of A2757

-- 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 A2757
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.294    42.06
--------------------------
1897.85    0.287   193.26
1898.85    0.286   192.04
1899.85    0.285   190.82
1900.85    0.283   189.58
1901.85    0.282   188.33
1902.85    0.280   187.07
1903.85    0.279   185.79
1904.85    0.278   184.51
1905.85    0.276   183.20
1906.85    0.275   181.89
1907.85    0.274   180.57
1908.85    0.272   179.23
1909.85    0.271   177.88
1910.85    0.270   176.52
1911.85    0.269   175.14
1912.85    0.268   173.76
1913.85    0.267   172.36
1914.85    0.266   170.96
1915.85    0.265   169.54
1916.85    0.264   168.11
1917.85    0.263   166.68
1918.85    0.262   165.23
1919.85    0.262   163.78
1920.85    0.261   162.32
1921.85    0.261   160.85
1922.85    0.260   159.38
1923.85    0.260   157.90
1924.85    0.259   156.42
1925.85    0.259   154.93
1926.85    0.259   153.45
1927.85    0.259   151.96
1928.85    0.259   150.46
1929.85    0.259   148.97
1930.85    0.259   147.48
1931.85    0.259   145.99
1932.85    0.259   144.51
1933.85    0.260   143.02
1934.85    0.260   141.54
1935.85    0.260   140.07
1936.85    0.261   138.60
1937.85    0.262   137.14
1938.85    0.262   135.68
1939.85    0.263   134.24
1940.85    0.264   132.80
1941.85    0.265   131.37
1942.85    0.266   129.96
1943.85    0.267   128.55
1944.85    0.268   127.15
1945.85    0.269   125.77
1946.85    0.270   124.39
1947.85    0.271   123.03
1948.85    0.273   121.69
1949.85    0.274   120.35
1950.85    0.275   119.03
1951.85    0.277   117.72
1952.85    0.278   116.43
1953.85    0.280   115.15
1954.85    0.281   113.88
1955.85    0.283   112.63
1956.85    0.285   111.39
1957.85    0.286   110.17
1958.85    0.288   108.96
1959.85    0.289   107.76
1960.85    0.291   106.57
1961.85    0.293   105.40
1962.85    0.294   104.25
1963.85    0.296   103.10
1964.85    0.298   101.97
1965.85    0.300   100.85
1966.85    0.301    99.75
1967.85    0.303    98.65
1968.85    0.305    97.57
1969.85    0.306    96.50
1970.85    0.308    95.44
1971.85    0.309    94.40
1972.85    0.311    93.36
1973.85    0.312    92.33
1974.85    0.314    91.32
1975.85    0.315    90.31
1976.85    0.317    89.31
1977.85    0.318    88.32
1978.85    0.320    87.34
1979.85    0.321    86.37
1980.85    0.322    85.41
1981.85    0.324    84.45
1982.85    0.325    83.50
1983.85    0.326    82.56
1984.85    0.327    81.62
1985.85    0.328    80.69
1986.85    0.329    79.76
1987.85    0.330    78.84
1988.85    0.331    77.93
1989.85    0.331    77.02
1990.85    0.332    76.11
1991.85    0.332    75.20
1992.85    0.333    74.30
1993.85    0.333    73.40
1994.85    0.334    72.51
1995.85    0.334    71.61
1996.85    0.334    70.72
1997.85    0.334    69.83
1998.85    0.334    68.94
1999.85    0.334    68.04
2000.85    0.334    67.15
2001.85    0.334    66.26
2002.85    0.333    65.36
2003.85    0.333    64.46
2004.85    0.332    63.56
2005.85    0.332    62.66
2006.85    0.331    61.75
2007.85    0.330    60.83
2008.85    0.329    59.92
2009.85    0.328    58.99
2010.85    0.327    58.06
2011.85    0.326    57.13
2012.85    0.324    56.18
2013.85    0.323    55.23
2014.85    0.321    54.26
2015.85    0.319    53.29
2016.85    0.318    52.31
2017.85    0.316    51.31
2018.85    0.314    50.30
2019.85    0.311    49.28
2020.85    0.309    48.25
2021.85    0.307    47.19
2022.85    0.304    46.13
2023.85    0.302    45.04
2024.85    0.299    43.93
2025.85    0.296    42.81
2026.85    0.293    41.66
2027.85    0.290    40.49
2028.85    0.287    39.29
2029.85    0.284    38.07
2030.85    0.281    36.82
2031.85    0.278    35.54
2032.85    0.274    34.23
2033.85    0.271    32.88
2034.85    0.267    31.50
2035.85    0.263    30.08
2036.85    0.260    28.62
2037.85    0.256    27.12
2038.85    0.252    25.58
2039.85    0.249    23.99
2040.85    0.245    22.35
2041.85    0.241    20.66
2042.85    0.237    18.91
2043.85    0.233    17.11
2044.85    0.230    15.25
2045.85    0.226    13.32
2046.85    0.222    11.33
2047.85    0.219     9.28
2048.85    0.215     7.15
2049.85    0.212     4.96
2050.85    0.208     2.69
2051.85    0.205     0.35
2052.85    0.202   357.94
2053.85    0.199   355.46
2054.85    0.196   352.90
2055.85    0.194   350.28
2056.85    0.191   347.59
2057.85    0.189   344.84
2058.85    0.188   342.03
2059.85    0.186   339.17
2060.85    0.185   336.27
2061.85    0.184   333.33
2062.85    0.183   330.36
2063.85    0.183   327.38
2064.85    0.183   324.39
2065.85    0.183   321.39
2066.85    0.183   318.41
2067.85    0.184   315.45
2068.85    0.185   312.52
2069.85    0.186   309.63
2070.85    0.188   306.78
2071.85    0.190   303.98
2072.85    0.192   301.24
2073.85    0.194   298.57
2074.85    0.197   295.96
2075.85    0.199   293.41
2076.85    0.202   290.94
2077.85    0.205   288.54
2078.85    0.208   286.21
2079.85    0.212   283.95
2080.85    0.215   281.76
2081.85    0.219   279.64
2082.85    0.222   277.58
2083.85    0.226   275.59
2084.85    0.229   273.66
2085.85    0.233   271.79
2086.85    0.236   269.97
2087.85    0.240   268.21
2088.85    0.244   266.51
2089.85    0.247   264.85
2090.85    0.251   263.24
2091.85    0.254   261.67
2092.85    0.257   260.14
2093.85    0.261   258.65
2094.85    0.264   257.21
2095.85    0.267   255.79
2096.85    0.270   254.41
2097.85    0.273   253.06
2098.85    0.276   251.73
2099.85    0.279   250.44
2100.85    0.282   249.17
2101.85    0.284   247.92
2102.85    0.287   246.70
2103.85    0.289   245.50
2104.85    0.291   244.31
2105.85    0.294   243.14
2106.85    0.296   241.99
2107.85    0.297   240.86
2108.85    0.299   239.74
2109.85    0.301   238.63
2110.85    0.303   237.54
2111.85    0.304   236.45
2112.85    0.305   235.38
2113.85    0.307   234.31
2114.85    0.308   233.25
2115.85    0.309   232.20
2116.85    0.309   231.16
2117.85    0.310   230.12
2118.85    0.311   229.08
2119.85    0.311   228.05
2120.85    0.312   227.02
2121.85    0.312   226.00
2122.85    0.312   224.98
2123.85    0.313   223.95
2124.85    0.313   222.93
2125.85    0.313   221.91
2126.85    0.312   220.89
2127.85    0.312   219.87
2128.85    0.312   218.84
2129.85    0.311   217.82
2130.85    0.311   216.79
2131.85    0.310   215.75
2132.85    0.310   214.71
2133.85    0.309   213.67
2134.85    0.308   212.62
2135.85    0.307   211.57
2136.85    0.306   210.51
2137.85    0.306   209.45
2138.85    0.305   208.37
2139.85    0.303   207.29
2140.85    0.302   206.21
2141.85    0.301   205.11
2142.85    0.300   204.01
2143.85    0.299   202.89
2144.85    0.297   201.77
2145.85    0.296   200.64
2146.85    0.295   199.50
2147.85    0.293   198.34
2148.85    0.292   197.18
2149.85    0.291   196.00
2150.85    0.289   194.82
2151.85    0.288   193.62






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 16:19:14



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