Double Star Calculator - Orbit

Orbital Elements for A1102
WDS: A1102 WDS ID/Discoverer
P: 243.710 Orbital period (years)
a: 0.367 Semi-major axis (arcseconds)
i: 135.4 Inclination (degrees)
Ω: 259.5 Longitude of ascending node (degrees)
T: 1926.310 Epoch of periastron passage (year)
e: 0.355 Eccentricity
ω: 23.6 Longitude of periastron (degrees)
Start-Year: 1903.145 Year
End-Year: 2146.855 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1102
Position: 141752.83+691403.5 Epoch-2000 right ascension and declination
WDS-ID: 14179+6914 WDS designation
Discoverer Code: A1102 Discover designation and components
ADS number: 9220 Aitken Double Star catalog
HD number: 125725 HD catalog number
Hipparcos number: 69870 Hipparcos catalog number
V1: 9.33 Magnitude of the primary
V2: 8.65 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 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: USN2017b Reference

Double Star Orbit for A1102



WDS 6th Orbit including measures of A1102

-- 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 A1102
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.484    74.46
--------------------------
1903.14    0.247   294.19
1904.14    0.247   292.02
1905.14    0.247   289.85
1906.14    0.248   287.69
1907.14    0.248   285.53
1908.14    0.248   283.37
1909.14    0.248   281.22
1910.14    0.248   279.07
1911.14    0.248   276.92
1912.14    0.248   274.76
1913.14    0.247   272.60
1914.14    0.247   270.43
1915.14    0.246   268.26
1916.14    0.245   266.07
1917.14    0.244   263.86
1918.14    0.243   261.63
1919.14    0.242   259.38
1920.14    0.240   257.11
1921.14    0.239   254.80
1922.14    0.237   252.46
1923.14    0.235   250.07
1924.14    0.232   247.65
1925.14    0.230   245.17
1926.14    0.228   242.64
1927.14    0.225   240.06
1928.14    0.222   237.41
1929.14    0.220   234.69
1930.14    0.217   231.91
1931.14    0.214   229.05
1932.14    0.211   226.12
1933.14    0.208   223.11
1934.14    0.206   220.02
1935.14    0.203   216.86
1936.14    0.201   213.62
1937.14    0.199   210.31
1938.14    0.197   206.94
1939.14    0.196   203.50
1940.14    0.194   200.02
1941.14    0.194   196.51
1942.14    0.193   192.96
1943.14    0.193   189.41
1944.14    0.193   185.85
1945.14    0.194   182.32
1946.14    0.195   178.81
1947.14    0.196   175.36
1948.14    0.198   171.96
1949.14    0.201   168.63
1950.14    0.203   165.38
1951.14    0.206   162.22
1952.14    0.209   159.15
1953.14    0.213   156.18
1954.14    0.217   153.32
1955.14    0.221   150.55
1956.14    0.225   147.90
1957.14    0.230   145.34
1958.14    0.235   142.89
1959.14    0.240   140.54
1960.14    0.245   138.28
1961.14    0.250   136.12
1962.14    0.255   134.04
1963.14    0.261   132.05
1964.14    0.266   130.14
1965.14    0.272   128.31
1966.14    0.277   126.55
1967.14    0.283   124.86
1968.14    0.288   123.23
1969.14    0.294   121.67
1970.14    0.299   120.16
1971.14    0.305   118.71
1972.14    0.310   117.31
1973.14    0.316   115.95
1974.14    0.321   114.65
1975.14    0.326   113.38
1976.14    0.332   112.16
1977.14    0.337   110.98
1978.14    0.342   109.83
1979.14    0.347   108.72
1980.14    0.352   107.63
1981.14    0.357   106.58
1982.14    0.362   105.56
1983.14    0.367   104.56
1984.14    0.372   103.59
1985.14    0.377   102.65
1986.14    0.381   101.73
1987.14    0.386   100.82
1988.14    0.390    99.94
1989.14    0.394    99.08
1990.14    0.398    98.24
1991.14    0.403    97.41
1992.14    0.407    96.60
1993.14    0.410    95.81
1994.14    0.414    95.03
1995.14    0.418    94.27
1996.14    0.422    93.52
1997.14    0.425    92.78
1998.14    0.429    92.05
1999.14    0.432    91.33
2000.14    0.435    90.63
2001.14    0.438    89.93
2002.14    0.441    89.25
2003.14    0.444    88.57
2004.14    0.447    87.91
2005.14    0.450    87.25
2006.14    0.452    86.60
2007.14    0.455    85.95
2008.14    0.457    85.31
2009.14    0.460    84.68
2010.14    0.462    84.06
2011.14    0.464    83.44
2012.14    0.466    82.83
2013.14    0.468    82.22
2014.14    0.470    81.62
2015.14    0.471    81.02
2016.14    0.473    80.43
2017.14    0.475    79.84
2018.14    0.476    79.25
2019.14    0.477    78.67
2020.14    0.479    78.09
2021.14    0.480    77.51
2022.14    0.481    76.94
2023.14    0.482    76.37
2024.14    0.483    75.80
2025.14    0.483    75.23
2026.14    0.484    74.66
2027.14    0.485    74.10
2028.14    0.485    73.54
2029.14    0.486    72.97
2030.14    0.486    72.41
2031.14    0.486    71.85
2032.14    0.486    71.29
2033.14    0.486    70.73
2034.14    0.486    70.17
2035.14    0.486    69.61
2036.14    0.486    69.05
2037.14    0.486    68.49
2038.14    0.486    67.93
2039.14    0.485    67.37
2040.14    0.485    66.81
2041.14    0.484    66.24
2042.14    0.483    65.67
2043.14    0.482    65.11
2044.14    0.482    64.54
2045.14    0.481    63.96
2046.14    0.480    63.39
2047.14    0.478    62.81
2048.14    0.477    62.23
2049.14    0.476    61.65
2050.14    0.475    61.06
2051.14    0.473    60.47
2052.14    0.472    59.88
2053.14    0.470    59.28
2054.14    0.469    58.68
2055.14    0.467    58.08
2056.14    0.465    57.47
2057.14    0.463    56.85
2058.14    0.461    56.23
2059.14    0.459    55.61
2060.14    0.457    54.97
2061.14    0.455    54.34
2062.14    0.453    53.69
2063.14    0.450    53.05
2064.14    0.448    52.39
2065.14    0.446    51.73
2066.14    0.443    51.06
2067.14    0.441    50.38
2068.14    0.438    49.69
2069.14    0.435    49.00
2070.14    0.433    48.29
2071.14    0.430    47.58
2072.14    0.427    46.86
2073.14    0.424    46.13
2074.14    0.421    45.39
2075.14    0.418    44.64
2076.14    0.415    43.87
2077.14    0.412    43.10
2078.14    0.409    42.31
2079.14    0.406    41.52
2080.14    0.403    40.70
2081.14    0.399    39.88
2082.14    0.396    39.04
2083.14    0.393    38.19
2084.14    0.389    37.32
2085.14    0.386    36.44
2086.14    0.382    35.54
2087.14    0.379    34.63
2088.14    0.375    33.70
2089.14    0.372    32.75
2090.14    0.368    31.78
2091.14    0.365    30.79
2092.14    0.361    29.79
2093.14    0.357    28.76
2094.14    0.354    27.71
2095.14    0.350    26.64
2096.14    0.346    25.55
2097.14    0.343    24.43
2098.14    0.339    23.29
2099.14    0.335    22.13
2100.14    0.332    20.94
2101.14    0.328    19.72
2102.14    0.324    18.48
2103.14    0.321    17.20
2104.14    0.317    15.90
2105.14    0.314    14.57
2106.14    0.310    13.21
2107.14    0.307    11.82
2108.14    0.303    10.40
2109.14    0.300     8.94
2110.14    0.297     7.46
2111.14    0.293     5.94
2112.14    0.290     4.38
2113.14    0.287     2.79
2114.14    0.284     1.17
2115.14    0.281   359.51
2116.14    0.278   357.82
2117.14    0.275   356.09
2118.14    0.273   354.33
2119.14    0.270   352.53
2120.14    0.268   350.70
2121.14    0.265   348.84
2122.14    0.263   346.94
2123.14    0.261   345.01
2124.14    0.259   343.05
2125.14    0.257   341.07
2126.14    0.255   339.05
2127.14    0.254   337.01
2128.14    0.252   334.94
2129.14    0.251   332.85
2130.14    0.250   330.74
2131.14    0.249   328.61
2132.14    0.248   326.46
2133.14    0.247   324.30
2134.14    0.246   322.12
2135.14    0.246   319.93
2136.14    0.245   317.74
2137.14    0.245   315.54
2138.14    0.245   313.34
2139.14    0.245   311.13
2140.14    0.245   308.92
2141.14    0.245   306.72
2142.14    0.245   304.51
2143.14    0.245   302.31
2144.14    0.246   300.12
2145.14    0.246   297.92
2146.14    0.246   295.74






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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 17:04:36



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