Double Star Calculator - Orbit

Orbital Elements for HTG1
WDS: HTG1 WDS ID/Discoverer
P: 313.590 Orbital period (years)
a: 2.26371 Semi-major axis (arcseconds)
i: 38.499 Inclination (degrees)
Ω: 9.608 Longitude of ascending node (degrees)
T: 1969.170 Epoch of periastron passage (year)
e: 0.17464 Eccentricity
ω: 75.405 Longitude of periastron (degrees)
Start-Year: 1868.2048 Year
End-Year: 2181.7952 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HTG1
Position: 021546.15-181417.7 Epoch-2000 right ascension and declination
WDS-ID: 02158-1814 WDS designation
Discoverer Code: HTG1 Discover designation and components
ADS number: 1733 Aitken Double Star catalog
HD number: 14001 HD catalog number
Hipparcos number: 10542 Hipparcos catalog number
V1: 8.49 Magnitude of the primary
V2: 9.25 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for HTG1



WDS 6th Orbit including measures of HTG1

-- 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 HTG1
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.119   174.42
--------------------------
1868.20    2.123   319.60
1869.20    2.126   320.60
1870.20    2.129   321.61
1871.20    2.133   322.60
1872.20    2.136   323.60
1873.20    2.140   324.59
1874.20    2.143   325.58
1875.20    2.146   326.56
1876.20    2.149   327.55
1877.20    2.152   328.53
1878.20    2.155   329.50
1879.20    2.158   330.48
1880.20    2.161   331.45
1881.20    2.164   332.42
1882.20    2.167   333.39
1883.20    2.169   334.35
1884.20    2.172   335.31
1885.20    2.174   336.27
1886.20    2.176   337.23
1887.20    2.178   338.19
1888.20    2.180   339.14
1889.20    2.182   340.09
1890.20    2.183   341.05
1891.20    2.184   342.00
1892.20    2.185   342.95
1893.20    2.186   343.90
1894.20    2.187   344.84
1895.20    2.187   345.79
1896.20    2.187   346.74
1897.20    2.187   347.69
1898.20    2.187   348.63
1899.20    2.186   349.58
1900.20    2.185   350.53
1901.20    2.184   351.48
1902.20    2.183   352.43
1903.20    2.181   353.38
1904.20    2.179   354.34
1905.20    2.176   355.29
1906.20    2.174   356.25
1907.20    2.171   357.21
1908.20    2.167   358.18
1909.20    2.163   359.14
1910.20    2.159     0.11
1911.20    2.155     1.09
1912.20    2.150     2.07
1913.20    2.145     3.05
1914.20    2.139     4.04
1915.20    2.134     5.03
1916.20    2.127     6.03
1917.20    2.121     7.03
1918.20    2.114     8.04
1919.20    2.106     9.06
1920.20    2.098    10.09
1921.20    2.090    11.12
1922.20    2.082    12.16
1923.20    2.073    13.21
1924.20    2.064    14.27
1925.20    2.054    15.34
1926.20    2.044    16.42
1927.20    2.034    17.51
1928.20    2.023    18.62
1929.20    2.012    19.73
1930.20    2.000    20.86
1931.20    1.988    22.00
1932.20    1.976    23.15
1933.20    1.964    24.32
1934.20    1.951    25.50
1935.20    1.938    26.70
1936.20    1.925    27.92
1937.20    1.911    29.15
1938.20    1.897    30.40
1939.20    1.883    31.67
1940.20    1.869    32.96
1941.20    1.854    34.26
1942.20    1.839    35.59
1943.20    1.825    36.94
1944.20    1.810    38.32
1945.20    1.794    39.71
1946.20    1.779    41.13
1947.20    1.764    42.58
1948.20    1.749    44.05
1949.20    1.734    45.54
1950.20    1.718    47.06
1951.20    1.703    48.61
1952.20    1.688    50.19
1953.20    1.674    51.79
1954.20    1.659    53.43
1955.20    1.645    55.09
1956.20    1.631    56.78
1957.20    1.617    58.50
1958.20    1.603    60.25
1959.20    1.590    62.02
1960.20    1.578    63.83
1961.20    1.566    65.67
1962.20    1.554    67.53
1963.20    1.543    69.42
1964.20    1.533    71.34
1965.20    1.523    73.28
1966.20    1.514    75.25
1967.20    1.505    77.24
1968.20    1.498    79.25
1969.20    1.491    81.28
1970.20    1.485    83.32
1971.20    1.480    85.39
1972.20    1.476    87.46
1973.20    1.472    89.55
1974.20    1.470    91.64
1975.20    1.469    93.74
1976.20    1.468    95.85
1977.20    1.468    97.95
1978.20    1.470   100.05
1979.20    1.472   102.15
1980.20    1.475   104.24
1981.20    1.479   106.31
1982.20    1.484   108.38
1983.20    1.490   110.43
1984.20    1.497   112.46
1985.20    1.504   114.47
1986.20    1.513   116.47
1987.20    1.522   118.43
1988.20    1.532   120.38
1989.20    1.543   122.30
1990.20    1.554   124.19
1991.20    1.566   126.05
1992.20    1.579   127.89
1993.20    1.592   129.69
1994.20    1.605   131.46
1995.20    1.620   133.21
1996.20    1.634   134.92
1997.20    1.649   136.60
1998.20    1.665   138.25
1999.20    1.680   139.87
2000.20    1.696   141.46
2001.20    1.713   143.02
2002.20    1.729   144.56
2003.20    1.746   146.06
2004.20    1.762   147.53
2005.20    1.779   148.98
2006.20    1.796   150.39
2007.20    1.813   151.79
2008.20    1.830   153.15
2009.20    1.847   154.49
2010.20    1.865   155.81
2011.20    1.881   157.10
2012.20    1.898   158.37
2013.20    1.915   159.62
2014.20    1.932   160.84
2015.20    1.948   162.05
2016.20    1.965   163.23
2017.20    1.981   164.40
2018.20    1.997   165.54
2019.20    2.012   166.67
2020.20    2.028   167.78
2021.20    2.043   168.88
2022.20    2.058   169.95
2023.20    2.073   171.02
2024.20    2.087   172.06
2025.20    2.101   173.10
2026.20    2.115   174.12
2027.20    2.129   175.12
2028.20    2.142   176.12
2029.20    2.155   177.10
2030.20    2.167   178.07
2031.20    2.179   179.03
2032.20    2.191   179.98
2033.20    2.203   180.92
2034.20    2.214   181.85
2035.20    2.225   182.77
2036.20    2.235   183.68
2037.20    2.245   184.58
2038.20    2.255   185.48
2039.20    2.264   186.37
2040.20    2.273   187.25
2041.20    2.282   188.12
2042.20    2.290   188.99
2043.20    2.298   189.85
2044.20    2.305   190.71
2045.20    2.313   191.56
2046.20    2.319   192.40
2047.20    2.326   193.24
2048.20    2.332   194.08
2049.20    2.337   194.91
2050.20    2.343   195.74
2051.20    2.348   196.56
2052.20    2.352   197.38
2053.20    2.357   198.20
2054.20    2.361   199.02
2055.20    2.364   199.83
2056.20    2.367   200.64
2057.20    2.370   201.45
2058.20    2.373   202.25
2059.20    2.375   203.06
2060.20    2.377   203.86
2061.20    2.379   204.66
2062.20    2.380   205.46
2063.20    2.381   206.26
2064.20    2.382   207.06
2065.20    2.383   207.86
2066.20    2.383   208.66
2067.20    2.383   209.45
2068.20    2.382   210.25
2069.20    2.382   211.05
2070.20    2.381   211.85
2071.20    2.379   212.65
2072.20    2.378   213.45
2073.20    2.376   214.26
2074.20    2.374   215.06
2075.20    2.372   215.86
2076.20    2.370   216.67
2077.20    2.367   217.48
2078.20    2.365   218.29
2079.20    2.362   219.10
2080.20    2.358   219.91
2081.20    2.355   220.73
2082.20    2.351   221.55
2083.20    2.348   222.37
2084.20    2.344   223.19
2085.20    2.340   224.02
2086.20    2.335   224.85
2087.20    2.331   225.68
2088.20    2.326   226.52
2089.20    2.322   227.36
2090.20    2.317   228.20
2091.20    2.312   229.05
2092.20    2.307   229.90
2093.20    2.302   230.75
2094.20    2.297   231.61
2095.20    2.291   232.47
2096.20    2.286   233.33
2097.20    2.280   234.20
2098.20    2.275   235.08
2099.20    2.269   235.96
2100.20    2.264   236.84
2101.20    2.258   237.73
2102.20    2.252   238.62
2103.20    2.246   239.51
2104.20    2.240   240.41
2105.20    2.235   241.32
2106.20    2.229   242.23
2107.20    2.223   243.14
2108.20    2.217   244.06
2109.20    2.211   244.99
2110.20    2.206   245.92
2111.20    2.200   246.85
2112.20    2.194   247.79
2113.20    2.188   248.74
2114.20    2.183   249.69
2115.20    2.177   250.64
2116.20    2.172   251.60
2117.20    2.166   252.56
2118.20    2.161   253.53
2119.20    2.155   254.50
2120.20    2.150   255.48
2121.20    2.145   256.46
2122.20    2.140   257.45
2123.20    2.135   258.44
2124.20    2.131   259.44
2125.20    2.126   260.44
2126.20    2.121   261.45
2127.20    2.117   262.46
2128.20    2.113   263.47
2129.20    2.109   264.49
2130.20    2.105   265.51
2131.20    2.101   266.53
2132.20    2.097   267.56
2133.20    2.094   268.60
2134.20    2.090   269.63
2135.20    2.087   270.67
2136.20    2.084   271.71
2137.20    2.081   272.76
2138.20    2.078   273.81
2139.20    2.076   274.86
2140.20    2.074   275.91
2141.20    2.071   276.97
2142.20    2.069   278.02
2143.20    2.068   279.08
2144.20    2.066   280.14
2145.20    2.065   281.21
2146.20    2.064   282.27
2147.20    2.062   283.34
2148.20    2.062   284.40
2149.20    2.061   285.47
2150.20    2.061   286.54
2151.20    2.060   287.60
2152.20    2.060   288.67
2153.20    2.060   289.74
2154.20    2.061   290.81
2155.20    2.061   291.88
2156.20    2.062   292.94
2157.20    2.062   294.01
2158.20    2.063   295.07
2159.20    2.064   296.14
2160.20    2.066   297.20
2161.20    2.067   298.26
2162.20    2.069   299.32
2163.20    2.071   300.38
2164.20    2.072   301.44
2165.20    2.075   302.49
2166.20    2.077   303.54
2167.20    2.079   304.59
2168.20    2.081   305.64
2169.20    2.084   306.69
2170.20    2.087   307.73
2171.20    2.089   308.77
2172.20    2.092   309.81
2173.20    2.095   310.84
2174.20    2.098   311.87
2175.20    2.101   312.90
2176.20    2.104   313.93
2177.20    2.108   314.95
2178.20    2.111   315.97
2179.20    2.114   316.98
2180.20    2.117   318.00
2181.20    2.121   319.00






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 14:58:29



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