Double Star Calculator - Orbit

Orbital Elements for HWE71

WDS:	HWE71	WDS ID/Discoverer
P:	248.800	Orbital period (years)
a:	1.004	Semi-major axis (arcseconds)
i:	99.6	Inclination (degrees)
Ω:	276.3	Longitude of ascending node (degrees)
T:	2008.480	Epoch of periastron passage (year)
e:	0.72	Eccentricity
ω:	162.0	Longitude of periastron (degrees)
Start-Year:	1900.6	Year
End-Year:	2149.4	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HWE71
Position:	115425.81-374456.1	Epoch-2000 right ascension and declination
WDS-ID:	11544-3745	WDS designation
Discoverer Code:	HWE71	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	103437	HD catalog number
Hipparcos number:	58057	Hipparcos catalog number
V1:	6.75	Magnitude of the primary
V2:	8.60	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	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:	Tok2015c	Reference

Double Star Orbit for HWE71

WDS 6th Orbit including measures of HWE71

-- 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 HWE71

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.126   338.54
--------------------------
1900.60    1.667   278.39
1901.60    1.667   278.33
1902.60    1.666   278.27
1903.60    1.665   278.21
1904.60    1.664   278.15
1905.60    1.663   278.09
1906.60    1.661   278.03
1907.60    1.659   277.96
1908.60    1.657   277.90
1909.60    1.655   277.84
1910.60    1.652   277.78
1911.60    1.650   277.72
1912.60    1.647   277.66
1913.60    1.644   277.59
1914.60    1.640   277.53
1915.60    1.637   277.47
1916.60    1.633   277.40
1917.60    1.629   277.34
1918.60    1.624   277.28
1919.60    1.620   277.21
1920.60    1.615   277.15
1921.60    1.610   277.08
1922.60    1.605   277.02
1923.60    1.599   276.95
1924.60    1.593   276.89
1925.60    1.587   276.82
1926.60    1.581   276.75
1927.60    1.575   276.68
1928.60    1.568   276.62
1929.60    1.561   276.55
1930.60    1.553   276.48
1931.60    1.546   276.41
1932.60    1.538   276.34
1933.60    1.530   276.26
1934.60    1.521   276.19
1935.60    1.513   276.12
1936.60    1.504   276.04
1937.60    1.494   275.97
1938.60    1.485   275.89
1939.60    1.475   275.82
1940.60    1.465   275.74
1941.60    1.455   275.66
1942.60    1.444   275.58
1943.60    1.433   275.50
1944.60    1.422   275.41
1945.60    1.410   275.33
1946.60    1.398   275.24
1947.60    1.386   275.16
1948.60    1.373   275.07
1949.60    1.360   274.98
1950.60    1.347   274.89
1951.60    1.333   274.79
1952.60    1.319   274.70
1953.60    1.305   274.60
1954.60    1.290   274.50
1955.60    1.275   274.39
1956.60    1.260   274.29
1957.60    1.244   274.18
1958.60    1.228   274.07
1959.60    1.212   273.96
1960.60    1.195   273.84
1961.60    1.177   273.72
1962.60    1.159   273.60
1963.60    1.141   273.47
1964.60    1.123   273.34
1965.60    1.104   273.20
1966.60    1.084   273.06
1967.60    1.064   272.91
1968.60    1.044   272.76
1969.60    1.023   272.60
1970.60    1.001   272.44
1971.60    0.979   272.27
1972.60    0.957   272.09
1973.60    0.934   271.90
1974.60    0.910   271.70
1975.60    0.886   271.49
1976.60    0.862   271.27
1977.60    0.836   271.04
1978.60    0.810   270.79
1979.60    0.784   270.52
1980.60    0.757   270.24
1981.60    0.729   269.93
1982.60    0.700   269.60
1983.60    0.671   269.24
1984.60    0.641   268.85
1985.60    0.610   268.42
1986.60    0.579   267.94
1987.60    0.547   267.41
1988.60    0.514   266.80
1989.60    0.480   266.12
1990.60    0.445   265.33
1991.60    0.409   264.40
1992.60    0.373   263.29
1993.60    0.335   261.94
1994.60    0.297   260.25
1995.60    0.258   258.05
1996.60    0.219   255.07
1997.60    0.180   250.78
1998.60    0.141   244.08
1999.60    0.104   232.49
2000.60    0.075   210.44
2001.60    0.066   174.20
2002.60    0.084   142.05
2003.60    0.116   124.33
2004.60    0.152   114.69
2005.60    0.188   108.77
2006.60    0.220   104.70
2007.60    0.248   101.63
2008.60    0.270    99.12
2009.60    0.284    96.93
2010.60    0.291    94.90
2011.60    0.291    92.91
2012.60    0.284    90.87
2013.60    0.273    88.70
2014.60    0.258    86.31
2015.60    0.240    83.58
2016.60    0.220    80.39
2017.60    0.199    76.53
2018.60    0.178    71.76
2019.60    0.157    65.71
2020.60    0.138    57.87
2021.60    0.121    47.67
2022.60    0.109    34.72
2023.60    0.103    19.46
2024.60    0.105     3.57
2025.60    0.113   349.19
2026.60    0.128   337.49
2027.60    0.146   328.46
2028.60    0.167   321.56
2029.60    0.190   316.25
2030.60    0.214   312.09
2031.60    0.238   308.76
2032.60    0.262   306.06
2033.60    0.287   303.81
2034.60    0.312   301.93
2035.60    0.336   300.32
2036.60    0.361   298.93
2037.60    0.385   297.71
2038.60    0.410   296.65
2039.60    0.434   295.70
2040.60    0.458   294.85
2041.60    0.481   294.08
2042.60    0.505   293.39
2043.60    0.528   292.75
2044.60    0.551   292.17
2045.60    0.574   291.64
2046.60    0.596   291.14
2047.60    0.618   290.69
2048.60    0.640   290.26
2049.60    0.662   289.86
2050.60    0.683   289.49
2051.60    0.704   289.14
2052.60    0.725   288.81
2053.60    0.745   288.49
2054.60    0.766   288.20
2055.60    0.786   287.92
2056.60    0.805   287.65
2057.60    0.825   287.40
2058.60    0.844   287.15
2059.60    0.863   286.92
2060.60    0.882   286.70
2061.60    0.900   286.49
2062.60    0.919   286.28
2063.60    0.937   286.09
2064.60    0.954   285.90
2065.60    0.972   285.72
2066.60    0.989   285.54
2067.60    1.006   285.37
2068.60    1.023   285.21
2069.60    1.039   285.05
2070.60    1.056   284.89
2071.60    1.072   284.75
2072.60    1.088   284.60
2073.60    1.103   284.46
2074.60    1.119   284.32
2075.60    1.134   284.19
2076.60    1.149   284.06
2077.60    1.163   283.93
2078.60    1.178   283.81
2079.60    1.192   283.69
2080.60    1.206   283.57
2081.60    1.220   283.46
2082.60    1.233   283.35
2083.60    1.247   283.24
2084.60    1.260   283.13
2085.60    1.273   283.02
2086.60    1.285   282.92
2087.60    1.298   282.82
2088.60    1.310   282.72
2089.60    1.322   282.62
2090.60    1.334   282.53
2091.60    1.345   282.43
2092.60    1.357   282.34
2093.60    1.368   282.25
2094.60    1.379   282.16
2095.60    1.390   282.07
2096.60    1.400   281.99
2097.60    1.410   281.90
2098.60    1.421   281.82
2099.60    1.431   281.73
2100.60    1.440   281.65
2101.60    1.450   281.57
2102.60    1.459   281.49
2103.60    1.468   281.41
2104.60    1.477   281.33
2105.60    1.486   281.26
2106.60    1.494   281.18
2107.60    1.503   281.11
2108.60    1.511   281.03
2109.60    1.518   280.96
2110.60    1.526   280.88
2111.60    1.534   280.81
2112.60    1.541   280.74
2113.60    1.548   280.67
2114.60    1.555   280.60
2115.60    1.561   280.53
2116.60    1.568   280.46
2117.60    1.574   280.39
2118.60    1.580   280.33
2119.60    1.586   280.26
2120.60    1.592   280.19
2121.60    1.597   280.12
2122.60    1.602   280.06
2123.60    1.608   279.99
2124.60    1.612   279.93
2125.60    1.617   279.86
2126.60    1.621   279.80
2127.60    1.626   279.73
2128.60    1.630   279.67
2129.60    1.634   279.61
2130.60    1.637   279.54
2131.60    1.641   279.48
2132.60    1.644   279.42
2133.60    1.647   279.36
2134.60    1.650   279.29
2135.60    1.652   279.23
2136.60    1.655   279.17
2137.60    1.657   279.11
2138.60    1.659   279.05
2139.60    1.661   278.99
2140.60    1.662   278.93
2141.60    1.664   278.86
2142.60    1.665   278.80
2143.60    1.666   278.74
2144.60    1.667   278.68
2145.60    1.667   278.62
2146.60    1.667   278.56
2147.60    1.668   278.50
2148.60    1.667   278.44

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 16:42:23