Double Star Calculator - Orbit

Orbital Elements for HU75

WDS:	HU75	WDS ID/Discoverer
P:	129.670	Orbital period (years)
a:	0.496	Semi-major axis (arcseconds)
i:	31.5	Inclination (degrees)
Ω:	183.1	Longitude of ascending node (degrees)
T:	2009.470	Epoch of periastron passage (year)
e:	0.652	Eccentricity
ω:	245.3	Longitude of periastron (degrees)
Start-Year:	1960.165	Year
End-Year:	2089.835	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU75
Position:	192937.86-123848.1	Epoch-2000 right ascension and declination
WDS-ID:	19296-1239	WDS designation
Discoverer Code:	HU75	Discover designation and components
ADS number:	12505	Aitken Double Star catalog
HD number:	183347	HD catalog number
Hipparcos number:	95847	Hipparcos catalog number
V1:	7.09	Magnitude of the primary
V2:	9.15	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:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2015c	Reference

Double Star Orbit for HU75

WDS 6th Orbit including measures of HU75

-- 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 HU75

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.462   193.08
--------------------------
1960.16    0.676   258.66
1961.16    0.671   259.64
1962.16    0.666   260.63
1963.16    0.661   261.63
1964.16    0.656   262.65
1965.16    0.650   263.68
1966.16    0.644   264.74
1967.16    0.639   265.81
1968.16    0.632   266.91
1969.16    0.626   268.02
1970.16    0.620   269.16
1971.16    0.613   270.32
1972.16    0.606   271.51
1973.16    0.599   272.73
1974.16    0.591   273.98
1975.16    0.584   275.26
1976.16    0.576   276.57
1977.16    0.568   277.92
1978.16    0.559   279.31
1979.16    0.551   280.74
1980.16    0.542   282.22
1981.16    0.533   283.75
1982.16    0.524   285.33
1983.16    0.514   286.97
1984.16    0.505   288.67
1985.16    0.495   290.44
1986.16    0.484   292.29
1987.16    0.474   294.21
1988.16    0.463   296.22
1989.16    0.452   298.34
1990.16    0.440   300.55
1991.16    0.429   302.89
1992.16    0.417   305.36
1993.16    0.404   307.98
1994.16    0.392   310.77
1995.16    0.379   313.75
1996.16    0.365   316.94
1997.16    0.351   320.38
1998.16    0.337   324.12
1999.16    0.322   328.18
2000.16    0.307   332.65
2001.16    0.291   337.61
2002.16    0.274   343.15
2003.16    0.257   349.43
2004.16    0.239   356.63
2005.16    0.220     5.04
2006.16    0.201    15.02
2007.16    0.183    27.05
2008.16    0.166    41.65
2009.16    0.154    59.00
2010.16    0.150    78.31
2011.16    0.155    97.56
2012.16    0.168   114.67
2013.16    0.187   128.76
2014.16    0.210   140.03
2015.16    0.234   149.04
2016.16    0.258   156.38
2017.16    0.281   162.46
2018.16    0.305   167.61
2019.16    0.327   172.04
2020.16    0.348   175.92
2021.16    0.368   179.37
2022.16    0.388   182.46
2023.16    0.406   185.26
2024.16    0.424   187.82
2025.16    0.441   190.18
2026.16    0.457   192.38
2027.16    0.472   194.42
2028.16    0.487   196.34
2029.16    0.501   198.15
2030.16    0.514   199.86
2031.16    0.527   201.49
2032.16    0.539   203.04
2033.16    0.551   204.53
2034.16    0.562   205.95
2035.16    0.573   207.32
2036.16    0.583   208.64
2037.16    0.593   209.92
2038.16    0.602   211.15
2039.16    0.611   212.35
2040.16    0.619   213.52
2041.16    0.627   214.66
2042.16    0.635   215.76
2043.16    0.642   216.85
2044.16    0.649   217.91
2045.16    0.656   218.94
2046.16    0.662   219.96
2047.16    0.668   220.96
2048.16    0.673   221.94
2049.16    0.679   222.91
2050.16    0.684   223.86
2051.16    0.688   224.80
2052.16    0.693   225.72
2053.16    0.697   226.64
2054.16    0.700   227.54
2055.16    0.704   228.44
2056.16    0.707   229.33
2057.16    0.710   230.21
2058.16    0.712   231.08
2059.16    0.715   231.95
2060.16    0.717   232.81
2061.16    0.719   233.67
2062.16    0.720   234.52
2063.16    0.722   235.37
2064.16    0.723   236.21
2065.16    0.724   237.06
2066.16    0.724   237.90
2067.16    0.725   238.74
2068.16    0.725   239.58
2069.16    0.725   240.42
2070.16    0.725   241.26
2071.16    0.724   242.10
2072.16    0.723   242.95
2073.16    0.723   243.79
2074.16    0.721   244.64
2075.16    0.720   245.49
2076.16    0.718   246.34
2077.16    0.717   247.20
2078.16    0.715   248.06
2079.16    0.712   248.93
2080.16    0.710   249.80
2081.16    0.707   250.68
2082.16    0.704   251.57
2083.16    0.701   252.46
2084.16    0.698   253.36
2085.16    0.695   254.27
2086.16    0.691   255.19
2087.16    0.687   256.12
2088.16    0.683   257.07
2089.16    0.679   258.02

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 18:04:39