Double Star Calculator - Orbit

Orbital Elements for I1444
WDS: I1444 WDS ID/Discoverer
P: 169.000 Orbital period (years)
a: 0.308 Semi-major axis (arcseconds)
i: 160.0 Inclination (degrees)
Ω: 125.0 Longitude of ascending node (degrees)
T: 2037.050 Epoch of periastron passage (year)
e: 0.365 Eccentricity
ω: 68.4 Longitude of periastron (degrees)
Start-Year: 1940.5 Year
End-Year: 2109.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for I1444
Position: 213624.11-404046.6 Epoch-2000 right ascension and declination
WDS-ID: 21364-4041 WDS designation
Discoverer Code: I1444 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 205429 HD catalog number
Hipparcos number: 106676 Hipparcos catalog number
V1: 9.42 Magnitude of the primary
V2: 9.46 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2019 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2019h Reference

Double Star Orbit for I1444



WDS 6th Orbit including measures of I1444

-- 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 I1444
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.214   106.32
--------------------------
1940.50    0.398   251.23
1941.50    0.398   250.12
1942.50    0.398   249.00
1943.50    0.399   247.89
1944.50    0.399   246.78
1945.50    0.399   245.67
1946.50    0.399   244.56
1947.50    0.399   243.45
1948.50    0.399   242.34
1949.50    0.399   241.23
1950.50    0.399   240.13
1951.50    0.399   239.01
1952.50    0.399   237.90
1953.50    0.398   236.79
1954.50    0.398   235.67
1955.50    0.397   234.56
1956.50    0.397   233.43
1957.50    0.396   232.31
1958.50    0.395   231.18
1959.50    0.395   230.05
1960.50    0.394   228.91
1961.50    0.393   227.77
1962.50    0.392   226.62
1963.50    0.391   225.47
1964.50    0.390   224.31
1965.50    0.389   223.15
1966.50    0.388   221.97
1967.50    0.387   220.79
1968.50    0.385   219.61
1969.50    0.384   218.41
1970.50    0.382   217.21
1971.50    0.381   215.99
1972.50    0.379   214.77
1973.50    0.378   213.54
1974.50    0.376   212.29
1975.50    0.374   211.04
1976.50    0.373   209.77
1977.50    0.371   208.49
1978.50    0.369   207.20
1979.50    0.367   205.90
1980.50    0.365   204.58
1981.50    0.363   203.24
1982.50    0.361   201.90
1983.50    0.359   200.53
1984.50    0.357   199.15
1985.50    0.354   197.75
1986.50    0.352   196.33
1987.50    0.350   194.89
1988.50    0.347   193.44
1989.50    0.345   191.96
1990.50    0.342   190.46
1991.50    0.339   188.93
1992.50    0.337   187.39
1993.50    0.334   185.81
1994.50    0.331   184.21
1995.50    0.328   182.59
1996.50    0.325   180.93
1997.50    0.322   179.25
1998.50    0.319   177.53
1999.50    0.316   175.78
2000.50    0.313   173.99
2001.50    0.310   172.17
2002.50    0.307   170.31
2003.50    0.303   168.41
2004.50    0.300   166.47
2005.50    0.296   164.48
2006.50    0.293   162.44
2007.50    0.289   160.36
2008.50    0.286   158.22
2009.50    0.282   156.03
2010.50    0.278   153.77
2011.50    0.275   151.46
2012.50    0.271   149.08
2013.50    0.267   146.63
2014.50    0.263   144.11
2015.50    0.259   141.51
2016.50    0.255   138.83
2017.50    0.251   136.06
2018.50    0.247   133.20
2019.50    0.242   130.24
2020.50    0.238   127.18
2021.50    0.234   124.01
2022.50    0.230   120.73
2023.50    0.226   117.32
2024.50    0.222   113.79
2025.50    0.218   110.12
2026.50    0.214   106.32
2027.50    0.210   102.37
2028.50    0.206    98.28
2029.50    0.202    94.04
2030.50    0.199    89.66
2031.50    0.196    85.13
2032.50    0.193    80.46
2033.50    0.191    75.67
2034.50    0.189    70.76
2035.50    0.187    65.75
2036.50    0.186    60.67
2037.50    0.185    55.53
2038.50    0.185    50.36
2039.50    0.185    45.20
2040.50    0.186    40.07
2041.50    0.187    34.99
2042.50    0.189    30.00
2043.50    0.191    25.11
2044.50    0.194    20.35
2045.50    0.197    15.73
2046.50    0.201    11.26
2047.50    0.204     6.94
2048.50    0.209     2.80
2049.50    0.213   358.81
2050.50    0.217   354.99
2051.50    0.222   351.33
2052.50    0.227   347.81
2053.50    0.232   344.45
2054.50    0.237   341.23
2055.50    0.242   338.14
2056.50    0.247   335.17
2057.50    0.252   332.33
2058.50    0.257   329.59
2059.50    0.262   326.96
2060.50    0.267   324.43
2061.50    0.272   321.99
2062.50    0.277   319.64
2063.50    0.281   317.37
2064.50    0.286   315.17
2065.50    0.291   313.04
2066.50    0.295   310.98
2067.50    0.300   308.98
2068.50    0.304   307.04
2069.50    0.308   305.15
2070.50    0.312   303.31
2071.50    0.316   301.52
2072.50    0.320   299.77
2073.50    0.324   298.07
2074.50    0.328   296.40
2075.50    0.331   294.78
2076.50    0.335   293.18
2077.50    0.338   291.62
2078.50    0.342   290.09
2079.50    0.345   288.59
2080.50    0.348   287.12
2081.50    0.351   285.67
2082.50    0.354   284.24
2083.50    0.357   282.84
2084.50    0.359   281.46
2085.50    0.362   280.10
2086.50    0.364   278.76
2087.50    0.367   277.44
2088.50    0.369   276.13
2089.50    0.371   274.84
2090.50    0.373   273.57
2091.50    0.375   272.31
2092.50    0.377   271.06
2093.50    0.379   269.83
2094.50    0.381   268.60
2095.50    0.383   267.39
2096.50    0.384   266.19
2097.50    0.386   265.00
2098.50    0.387   263.81
2099.50    0.389   262.64
2100.50    0.390   261.47
2101.50    0.391   260.31
2102.50    0.392   259.16
2103.50    0.393   258.01
2104.50    0.394   256.87
2105.50    0.395   255.73
2106.50    0.396   254.60
2107.50    0.396   253.48
2108.50    0.397   252.35






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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 18:27:30



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