Double Star Calculator - Orbit

Orbital Elements for NAJ1
WDS: NAJ1 WDS ID/Discoverer
P: 237.949 Orbital period (years)
a: 5.78 Semi-major axis (arcseconds)
i: 7.7 Inclination (degrees)
Ω: -29.0 Longitude of ascending node (degrees)
T: 2042.075 Epoch of periastron passage (year)
e: 0.851 Eccentricity
ω: -9.0 Longitude of periastron (degrees)
Start-Year: 1906.0255218454224 Year
End-Year: 2143.974478154578 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for NAJ1
Position: 061034.62-215152.5 Epoch-2000 right ascension and declination
WDS-ID: 06106-2152 WDS designation
Discoverer Code: NAJ1 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 42581 HD catalog number
Hipparcos number: 29295 Hipparcos catalog number
V1: 8.35 Magnitude of the primary
V2: 17.1 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Bdt2021b Reference

Double Star Orbit for NAJ1



WDS 6th Orbit including measures of NAJ1

-- 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 NAJ1
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    4.015   186.53
--------------------------
1906.03   10.547   138.12
1907.03   10.564   138.35
1908.03   10.580   138.59
1909.03   10.595   138.82
1910.03   10.609   139.06
1911.03   10.622   139.29
1912.03   10.633   139.52
1913.03   10.644   139.76
1914.03   10.654   139.99
1915.03   10.663   140.22
1916.03   10.670   140.45
1917.03   10.677   140.68
1918.03   10.683   140.91
1919.03   10.688   141.14
1920.03   10.691   141.37
1921.03   10.694   141.60
1922.03   10.696   141.83
1923.03   10.696   142.06
1924.03   10.696   142.29
1925.03   10.695   142.52
1926.03   10.692   142.75
1927.03   10.689   142.98
1928.03   10.685   143.21
1929.03   10.680   143.44
1930.03   10.673   143.67
1931.03   10.666   143.91
1932.03   10.657   144.14
1933.03   10.648   144.37
1934.03   10.638   144.60
1935.03   10.626   144.83
1936.03   10.614   145.07
1937.03   10.601   145.30
1938.03   10.586   145.53
1939.03   10.571   145.77
1940.03   10.554   146.01
1941.03   10.537   146.24
1942.03   10.518   146.48
1943.03   10.498   146.72
1944.03   10.478   146.96
1945.03   10.456   147.20
1946.03   10.433   147.44
1947.03   10.410   147.68
1948.03   10.385   147.92
1949.03   10.359   148.17
1950.03   10.332   148.41
1951.03   10.304   148.66
1952.03   10.275   148.91
1953.03   10.245   149.16
1954.03   10.213   149.41
1955.03   10.181   149.66
1956.03   10.148   149.92
1957.03   10.113   150.17
1958.03   10.077   150.43
1959.03   10.040   150.69
1960.03   10.003   150.95
1961.03    9.963   151.22
1962.03    9.923   151.48
1963.03    9.882   151.75
1964.03    9.839   152.02
1965.03    9.796   152.30
1966.03    9.751   152.57
1967.03    9.705   152.85
1968.03    9.658   153.13
1969.03    9.609   153.41
1970.03    9.559   153.70
1971.03    9.508   153.99
1972.03    9.456   154.28
1973.03    9.403   154.58
1974.03    9.348   154.88
1975.03    9.292   155.18
1976.03    9.235   155.49
1977.03    9.176   155.80
1978.03    9.116   156.11
1979.03    9.055   156.43
1980.03    8.993   156.75
1981.03    8.929   157.08
1982.03    8.863   157.41
1983.03    8.797   157.75
1984.03    8.728   158.09
1985.03    8.659   158.44
1986.03    8.588   158.80
1987.03    8.515   159.15
1988.03    8.441   159.52
1989.03    8.365   159.89
1990.03    8.288   160.27
1991.03    8.209   160.66
1992.03    8.129   161.05
1993.03    8.046   161.46
1994.03    7.963   161.87
1995.03    7.877   162.29
1996.03    7.790   162.71
1997.03    7.701   163.15
1998.03    7.610   163.60
1999.03    7.518   164.06
2000.03    7.423   164.53
2001.03    7.327   165.02
2002.03    7.228   165.51
2003.03    7.128   166.02
2004.03    7.026   166.55
2005.03    6.921   167.09
2006.03    6.814   167.65
2007.03    6.705   168.22
2008.03    6.594   168.82
2009.03    6.480   169.43
2010.03    6.364   170.07
2011.03    6.246   170.73
2012.03    6.125   171.42
2013.03    6.001   172.14
2014.03    5.874   172.88
2015.03    5.745   173.66
2016.03    5.613   174.48
2017.03    5.477   175.33
2018.03    5.339   176.23
2019.03    5.197   177.18
2020.03    5.051   178.18
2021.03    4.902   179.25
2022.03    4.750   180.37
2023.03    4.593   181.58
2024.03    4.432   182.87
2025.03    4.267   184.26
2026.03    4.097   185.77
2027.03    3.922   187.40
2028.03    3.742   189.20
2029.03    3.557   191.17
2030.03    3.365   193.37
2031.03    3.168   195.84
2032.03    2.964   198.64
2033.03    2.753   201.86
2034.03    2.534   205.63
2035.03    2.308   210.12
2036.03    2.074   215.61
2037.03    1.834   222.53
2038.03    1.589   231.55
2039.03    1.345   243.87
2040.03    1.117   261.45
2041.03    0.937   286.90
2042.03    0.861   320.33
2043.03    0.926   354.17
2044.03    1.099    20.36
2045.03    1.323    38.53
2046.03    1.565    51.25
2047.03    1.808    60.54
2048.03    2.048    67.64
2049.03    2.281    73.27
2050.03    2.507    77.86
2051.03    2.725    81.71
2052.03    2.936    85.00
2053.03    3.140    87.85
2054.03    3.337    90.36
2055.03    3.528    92.60
2056.03    3.714    94.60
2057.03    3.894    96.42
2058.03    4.068    98.08
2059.03    4.238    99.61
2060.03    4.404   101.02
2061.03    4.565   102.33
2062.03    4.721   103.55
2063.03    4.874   104.69
2064.03    5.023   105.76
2065.03    5.169   106.78
2066.03    5.311   107.73
2067.03    5.450   108.64
2068.03    5.585   109.51
2069.03    5.718   110.33
2070.03    5.847   111.12
2071.03    5.974   111.87
2072.03    6.098   112.59
2073.03    6.219   113.29
2074.03    6.338   113.95
2075.03    6.454   114.60
2076.03    6.568   115.22
2077.03    6.679   115.82
2078.03    6.789   116.40
2079.03    6.896   116.96
2080.03    7.000   117.50
2081.03    7.103   118.03
2082.03    7.204   118.55
2083.03    7.302   119.05
2084.03    7.399   119.53
2085.03    7.494   120.01
2086.03    7.587   120.47
2087.03    7.678   120.92
2088.03    7.767   121.36
2089.03    7.854   121.79
2090.03    7.940   122.22
2091.03    8.024   122.63
2092.03    8.107   123.03
2093.03    8.187   123.43
2094.03    8.266   123.82
2095.03    8.344   124.20
2096.03    8.420   124.57
2097.03    8.494   124.94
2098.03    8.567   125.30
2099.03    8.639   125.66
2100.03    8.709   126.01
2101.03    8.777   126.35
2102.03    8.844   126.69
2103.03    8.910   127.02
2104.03    8.974   127.35
2105.03    9.037   127.68
2106.03    9.098   128.00
2107.03    9.159   128.31
2108.03    9.218   128.63
2109.03    9.275   128.93
2110.03    9.331   129.24
2111.03    9.386   129.54
2112.03    9.440   129.83
2113.03    9.493   130.13
2114.03    9.544   130.42
2115.03    9.594   130.71
2116.03    9.643   130.99
2117.03    9.690   131.27
2118.03    9.737   131.55
2119.03    9.782   131.83
2120.03    9.826   132.10
2121.03    9.869   132.37
2122.03    9.910   132.64
2123.03    9.951   132.91
2124.03    9.990   133.17
2125.03   10.028   133.43
2126.03   10.066   133.69
2127.03   10.102   133.95
2128.03   10.136   134.21
2129.03   10.170   134.47
2130.03   10.203   134.72
2131.03   10.235   134.97
2132.03   10.265   135.22
2133.03   10.294   135.47
2134.03   10.323   135.72
2135.03   10.350   135.96
2136.03   10.376   136.21
2137.03   10.402   136.45
2138.03   10.426   136.69
2139.03   10.449   136.94
2140.03   10.471   137.18
2141.03   10.492   137.42
2142.03   10.512   137.65
2143.03   10.530   137.89






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 15:44:26



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