Double Star Calculator - Orbit

Orbital Elements for I1494AB
WDS: I1494AB WDS ID/Discoverer
P: 277.660 Orbital period (years)
a: 0.511 Semi-major axis (arcseconds)
i: 104.6 Inclination (degrees)
Ω: 88.8 Longitude of ascending node (degrees)
T: 2026.030 Epoch of periastron passage (year)
e: 0.292 Eccentricity
ω: 217.9 Longitude of periastron (degrees)
Start-Year: 1886.17 Year
End-Year: 2163.83 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for I1494AB
Position: 055047.60-394501.1 Epoch-2000 right ascension and declination
WDS-ID: 05508-3945 WDS designation
Discoverer Code: I1494AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.03 Magnitude of the primary
V2: 9.09 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 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: Tok2023a Reference

Double Star Orbit for I1494AB



WDS 6th Orbit including measures of I1494AB

-- 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 I1494AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.287   257.24
--------------------------
1886.17    0.536    77.99
1887.17    0.531    77.71
1888.17    0.526    77.41
1889.17    0.521    77.12
1890.17    0.516    76.81
1891.17    0.511    76.50
1892.17    0.506    76.19
1893.17    0.500    75.86
1894.17    0.495    75.53
1895.17    0.489    75.20
1896.17    0.483    74.85
1897.17    0.477    74.50
1898.17    0.471    74.14
1899.17    0.465    73.76
1900.17    0.459    73.38
1901.17    0.453    72.99
1902.17    0.447    72.59
1903.17    0.440    72.17
1904.17    0.434    71.75
1905.17    0.428    71.31
1906.17    0.421    70.85
1907.17    0.414    70.38
1908.17    0.407    69.90
1909.17    0.401    69.40
1910.17    0.394    68.88
1911.17    0.387    68.35
1912.17    0.380    67.79
1913.17    0.373    67.21
1914.17    0.365    66.61
1915.17    0.358    65.99
1916.17    0.351    65.34
1917.17    0.344    64.66
1918.17    0.336    63.96
1919.17    0.329    63.22
1920.17    0.322    62.45
1921.17    0.314    61.64
1922.17    0.307    60.80
1923.17    0.299    59.91
1924.17    0.292    58.97
1925.17    0.284    57.99
1926.17    0.277    56.95
1927.17    0.269    55.86
1928.17    0.262    54.70
1929.17    0.255    53.48
1930.17    0.247    52.19
1931.17    0.240    50.81
1932.17    0.233    49.35
1933.17    0.226    47.80
1934.17    0.219    46.15
1935.17    0.212    44.39
1936.17    0.205    42.52
1937.17    0.199    40.52
1938.17    0.193    38.39
1939.17    0.186    36.12
1940.17    0.181    33.69
1941.17    0.175    31.11
1942.17    0.170    28.36
1943.17    0.165    25.44
1944.17    0.160    22.35
1945.17    0.156    19.10
1946.17    0.153    15.68
1947.17    0.150    12.11
1948.17    0.147     8.40
1949.17    0.145     4.59
1950.17    0.144     0.68
1951.17    0.143   356.72
1952.17    0.143   352.74
1953.17    0.144   348.78
1954.17    0.145   344.86
1955.17    0.147   341.03
1956.17    0.149   337.30
1957.17    0.152   333.71
1958.17    0.156   330.26
1959.17    0.160   326.98
1960.17    0.164   323.86
1961.17    0.169   320.90
1962.17    0.174   318.12
1963.17    0.179   315.50
1964.17    0.185   313.04
1965.17    0.191   310.73
1966.17    0.197   308.55
1967.17    0.203   306.52
1968.17    0.210   304.60
1969.17    0.216   302.80
1970.17    0.223   301.11
1971.17    0.230   299.51
1972.17    0.236   298.01
1973.17    0.243   296.59
1974.17    0.250   295.25
1975.17    0.257   293.97
1976.17    0.263   292.77
1977.17    0.270   291.62
1978.17    0.277   290.53
1979.17    0.283   289.49
1980.17    0.290   288.50
1981.17    0.296   287.55
1982.17    0.303   286.64
1983.17    0.309   285.76
1984.17    0.315   284.92
1985.17    0.321   284.11
1986.17    0.326   283.33
1987.17    0.332   282.58
1988.17    0.337   281.85
1989.17    0.342   281.14
1990.17    0.347   280.45
1991.17    0.352   279.78
1992.17    0.356   279.13
1993.17    0.360   278.49
1994.17    0.364   277.87
1995.17    0.368   277.26
1996.17    0.371   276.66
1997.17    0.374   276.07
1998.17    0.377   275.49
1999.17    0.379   274.92
2000.17    0.381   274.36
2001.17    0.383   273.80
2002.17    0.384   273.24
2003.17    0.385   272.69
2004.17    0.385   272.14
2005.17    0.385   271.59
2006.17    0.385   271.04
2007.17    0.384   270.49
2008.17    0.383   269.93
2009.17    0.382   269.38
2010.17    0.380   268.81
2011.17    0.378   268.24
2012.17    0.375   267.67
2013.17    0.371   267.08
2014.17    0.368   266.48
2015.17    0.364   265.87
2016.17    0.359   265.25
2017.17    0.354   264.61
2018.17    0.349   263.95
2019.17    0.343   263.26
2020.17    0.336   262.55
2021.17    0.329   261.82
2022.17    0.322   261.05
2023.17    0.315   260.24
2024.17    0.307   259.40
2025.17    0.298   258.51
2026.17    0.290   257.56
2027.17    0.281   256.56
2028.17    0.271   255.49
2029.17    0.262   254.34
2030.17    0.252   253.10
2031.17    0.242   251.76
2032.17    0.231   250.30
2033.17    0.221   248.70
2034.17    0.210   246.94
2035.17    0.200   245.00
2036.17    0.189   242.83
2037.17    0.178   240.41
2038.17    0.168   237.68
2039.17    0.157   234.59
2040.17    0.147   231.07
2041.17    0.138   227.05
2042.17    0.129   222.45
2043.17    0.121   217.20
2044.17    0.114   211.24
2045.17    0.108   204.55
2046.17    0.103   197.20
2047.17    0.101   189.32
2048.17    0.100   181.16
2049.17    0.101   173.03
2050.17    0.104   165.21
2051.17    0.109   157.95
2052.17    0.115   151.38
2053.17    0.122   145.54
2054.17    0.130   140.40
2055.17    0.140   135.91
2056.17    0.149   131.99
2057.17    0.160   128.56
2058.17    0.170   125.56
2059.17    0.181   122.91
2060.17    0.192   120.56
2061.17    0.203   118.47
2062.17    0.215   116.60
2063.17    0.226   114.91
2064.17    0.237   113.39
2065.17    0.248   112.00
2066.17    0.260   110.74
2067.17    0.271   109.58
2068.17    0.282   108.51
2069.17    0.293   107.52
2070.17    0.304   106.60
2071.17    0.314   105.74
2072.17    0.325   104.94
2073.17    0.335   104.19
2074.17    0.345   103.49
2075.17    0.356   102.82
2076.17    0.365   102.20
2077.17    0.375   101.60
2078.17    0.385   101.04
2079.17    0.394   100.50
2080.17    0.403    99.98
2081.17    0.412    99.49
2082.17    0.421    99.02
2083.17    0.430    98.57
2084.17    0.438    98.14
2085.17    0.447    97.72
2086.17    0.455    97.32
2087.17    0.463    96.93
2088.17    0.470    96.56
2089.17    0.478    96.19
2090.17    0.485    95.84
2091.17    0.492    95.50
2092.17    0.499    95.17
2093.17    0.506    94.84
2094.17    0.512    94.53
2095.17    0.518    94.22
2096.17    0.525    93.92
2097.17    0.530    93.63
2098.17    0.536    93.34
2099.17    0.542    93.06
2100.17    0.547    92.78
2101.17    0.552    92.51
2102.17    0.557    92.25
2103.17    0.562    91.99
2104.17    0.566    91.73
2105.17    0.571    91.48
2106.17    0.575    91.23
2107.17    0.579    90.99
2108.17    0.583    90.74
2109.17    0.586    90.50
2110.17    0.590    90.27
2111.17    0.593    90.03
2112.17    0.596    89.80
2113.17    0.599    89.58
2114.17    0.602    89.35
2115.17    0.604    89.12
2116.17    0.606    88.90
2117.17    0.609    88.68
2118.17    0.611    88.46
2119.17    0.612    88.24
2120.17    0.614    88.02
2121.17    0.615    87.81
2122.17    0.617    87.59
2123.17    0.618    87.38
2124.17    0.619    87.17
2125.17    0.620    86.95
2126.17    0.620    86.74
2127.17    0.621    86.53
2128.17    0.621    86.32
2129.17    0.621    86.11
2130.17    0.621    85.89
2131.17    0.621    85.68
2132.17    0.621    85.47
2133.17    0.620    85.26
2134.17    0.619    85.05
2135.17    0.619    84.83
2136.17    0.618    84.62
2137.17    0.617    84.40
2138.17    0.615    84.19
2139.17    0.614    83.97
2140.17    0.612    83.76
2141.17    0.611    83.54
2142.17    0.609    83.32
2143.17    0.607    83.10
2144.17    0.605    82.88
2145.17    0.602    82.65
2146.17    0.600    82.43
2147.17    0.597    82.20
2148.17    0.595    81.97
2149.17    0.592    81.74
2150.17    0.589    81.50
2151.17    0.586    81.27
2152.17    0.583    81.03
2153.17    0.579    80.78
2154.17    0.576    80.54
2155.17    0.572    80.29
2156.17    0.568    80.04
2157.17    0.565    79.79
2158.17    0.561    79.53
2159.17    0.557    79.27
2160.17    0.552    79.00
2161.17    0.548    78.73
2162.17    0.543    78.46
2163.17    0.539    78.18






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 15:41:27



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