Double Star Calculator - Orbit

Orbital Elements for A1750AB
WDS: A1750AB WDS ID/Discoverer
P: 250.000 Orbital period (years)
a: 0.205 Semi-major axis (arcseconds)
i: 79.7 Inclination (degrees)
Ω: 219.9 Longitude of ascending node (degrees)
T: 1987.400 Epoch of periastron passage (year)
e: 0.162 Eccentricity
ω: 127.3 Longitude of periastron (degrees)
Start-Year: 1900.0 Year
End-Year: 2150.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1750AB
Position: 084158.19-010854.1 Epoch-2000 right ascension and declination
WDS-ID: 08420-0109 WDS designation
Discoverer Code: A1750AB Discover designation and components
ADS number: 6936 Aitken Double Star catalog
HD number: 74113 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.2 Magnitude of the primary
V2: 9.2 Magnitude of the secondary
Equinox: Equinox
Date: 2021 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: Tok2021f Reference

Double Star Orbit for A1750AB



WDS 6th Orbit including measures of A1750AB

-- 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 A1750AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.179    43.77
--------------------------
1900.00    0.223   217.75
1901.00    0.223   217.96
1902.00    0.223   218.17
1903.00    0.223   218.39
1904.00    0.223   218.60
1905.00    0.223   218.82
1906.00    0.223   219.03
1907.00    0.223   219.24
1908.00    0.222   219.46
1909.00    0.222   219.68
1910.00    0.221   219.89
1911.00    0.221   220.11
1912.00    0.220   220.33
1913.00    0.219   220.55
1914.00    0.218   220.78
1915.00    0.217   221.00
1916.00    0.215   221.23
1917.00    0.214   221.46
1918.00    0.213   221.70
1919.00    0.211   221.94
1920.00    0.209   222.18
1921.00    0.207   222.43
1922.00    0.205   222.68
1923.00    0.203   222.93
1924.00    0.201   223.19
1925.00    0.199   223.46
1926.00    0.197   223.73
1927.00    0.194   224.01
1928.00    0.191   224.30
1929.00    0.189   224.60
1930.00    0.186   224.90
1931.00    0.183   225.21
1932.00    0.180   225.54
1933.00    0.177   225.88
1934.00    0.173   226.22
1935.00    0.170   226.59
1936.00    0.167   226.96
1937.00    0.163   227.36
1938.00    0.159   227.77
1939.00    0.155   228.20
1940.00    0.152   228.65
1941.00    0.148   229.13
1942.00    0.144   229.63
1943.00    0.139   230.17
1944.00    0.135   230.73
1945.00    0.131   231.34
1946.00    0.126   231.98
1947.00    0.122   232.68
1948.00    0.117   233.43
1949.00    0.113   234.24
1950.00    0.108   235.11
1951.00    0.103   236.08
1952.00    0.098   237.13
1953.00    0.093   238.29
1954.00    0.088   239.59
1955.00    0.084   241.03
1956.00    0.079   242.66
1957.00    0.074   244.50
1958.00    0.069   246.61
1959.00    0.064   249.05
1960.00    0.059   251.88
1961.00    0.054   255.20
1962.00    0.050   259.14
1963.00    0.046   263.83
1964.00    0.042   269.46
1965.00    0.038   276.19
1966.00    0.035   284.15
1967.00    0.033   293.34
1968.00    0.032   303.51
1969.00    0.032   314.15
1970.00    0.033   324.58
1971.00    0.034   334.18
1972.00    0.037   342.61
1973.00    0.040   349.79
1974.00    0.044   355.82
1975.00    0.048     0.84
1976.00    0.053     5.05
1977.00    0.057     8.60
1978.00    0.062    11.61
1979.00    0.067    14.19
1980.00    0.072    16.42
1981.00    0.077    18.37
1982.00    0.081    20.08
1983.00    0.086    21.61
1984.00    0.091    22.97
1985.00    0.096    24.19
1986.00    0.100    25.30
1987.00    0.105    26.31
1988.00    0.110    27.24
1989.00    0.114    28.09
1990.00    0.118    28.88
1991.00    0.123    29.62
1992.00    0.127    30.30
1993.00    0.131    30.95
1994.00    0.135    31.55
1995.00    0.138    32.12
1996.00    0.142    32.67
1997.00    0.146    33.18
1998.00    0.149    33.67
1999.00    0.152    34.15
2000.00    0.155    34.60
2001.00    0.158    35.03
2002.00    0.161    35.45
2003.00    0.163    35.86
2004.00    0.166    36.25
2005.00    0.168    36.63
2006.00    0.170    37.01
2007.00    0.172    37.37
2008.00    0.174    37.73
2009.00    0.176    38.08
2010.00    0.177    38.42
2011.00    0.178    38.76
2012.00    0.180    39.09
2013.00    0.181    39.42
2014.00    0.181    39.75
2015.00    0.182    40.07
2016.00    0.183    40.39
2017.00    0.183    40.71
2018.00    0.183    41.03
2019.00    0.183    41.35
2020.00    0.183    41.66
2021.00    0.183    41.98
2022.00    0.182    42.30
2023.00    0.182    42.62
2024.00    0.181    42.95
2025.00    0.180    43.28
2026.00    0.179    43.61
2027.00    0.178    43.94
2028.00    0.177    44.28
2029.00    0.176    44.62
2030.00    0.174    44.97
2031.00    0.173    45.32
2032.00    0.171    45.69
2033.00    0.169    46.06
2034.00    0.167    46.43
2035.00    0.165    46.82
2036.00    0.163    47.22
2037.00    0.160    47.63
2038.00    0.158    48.05
2039.00    0.156    48.49
2040.00    0.153    48.93
2041.00    0.150    49.40
2042.00    0.147    49.88
2043.00    0.145    50.38
2044.00    0.142    50.90
2045.00    0.139    51.45
2046.00    0.136    52.01
2047.00    0.132    52.61
2048.00    0.129    53.23
2049.00    0.126    53.89
2050.00    0.123    54.58
2051.00    0.119    55.31
2052.00    0.116    56.08
2053.00    0.112    56.91
2054.00    0.109    57.78
2055.00    0.105    58.71
2056.00    0.102    59.71
2057.00    0.098    60.78
2058.00    0.094    61.94
2059.00    0.091    63.18
2060.00    0.087    64.53
2061.00    0.084    66.00
2062.00    0.080    67.60
2063.00    0.076    69.35
2064.00    0.073    71.28
2065.00    0.069    73.39
2066.00    0.066    75.73
2067.00    0.063    78.33
2068.00    0.059    81.21
2069.00    0.056    84.41
2070.00    0.053    87.97
2071.00    0.051    91.93
2072.00    0.048    96.31
2073.00    0.046   101.14
2074.00    0.044   106.41
2075.00    0.043   112.09
2076.00    0.042   118.11
2077.00    0.041   124.36
2078.00    0.041   130.72
2079.00    0.041   137.02
2080.00    0.042   143.14
2081.00    0.044   148.95
2082.00    0.045   154.38
2083.00    0.047   159.37
2084.00    0.050   163.91
2085.00    0.052   168.02
2086.00    0.055   171.72
2087.00    0.058   175.05
2088.00    0.061   178.04
2089.00    0.065   180.73
2090.00    0.068   183.15
2091.00    0.072   185.34
2092.00    0.075   187.33
2093.00    0.079   189.13
2094.00    0.082   190.78
2095.00    0.086   192.28
2096.00    0.090   193.66
2097.00    0.093   194.93
2098.00    0.097   196.11
2099.00    0.101   197.20
2100.00    0.105   198.21
2101.00    0.108   199.15
2102.00    0.112   200.03
2103.00    0.116   200.86
2104.00    0.119   201.63
2105.00    0.123   202.36
2106.00    0.126   203.05
2107.00    0.130   203.70
2108.00    0.133   204.32
2109.00    0.137   204.90
2110.00    0.140   205.46
2111.00    0.144   205.99
2112.00    0.147   206.50
2113.00    0.150   206.98
2114.00    0.153   207.44
2115.00    0.157   207.89
2116.00    0.160   208.31
2117.00    0.163   208.72
2118.00    0.166   209.12
2119.00    0.169   209.50
2120.00    0.172   209.87
2121.00    0.174   210.23
2122.00    0.177   210.57
2123.00    0.180   210.91
2124.00    0.183   211.23
2125.00    0.185   211.55
2126.00    0.188   211.85
2127.00    0.190   212.15
2128.00    0.192   212.45
2129.00    0.195   212.73
2130.00    0.197   213.01
2131.00    0.199   213.28
2132.00    0.201   213.55
2133.00    0.203   213.81
2134.00    0.205   214.07
2135.00    0.207   214.32
2136.00    0.208   214.57
2137.00    0.210   214.81
2138.00    0.211   215.05
2139.00    0.213   215.29
2140.00    0.214   215.52
2141.00    0.216   215.76
2142.00    0.217   215.98
2143.00    0.218   216.21
2144.00    0.219   216.43
2145.00    0.220   216.66
2146.00    0.221   216.88
2147.00    0.221   217.10
2148.00    0.222   217.31
2149.00    0.222   217.53






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 16:09:40



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