Double Star Calculator - Orbit

Orbital Elements for HDS664

WDS:	HDS664	WDS ID/Discoverer
P:	127.870	Orbital period (years)
a:	0.4246	Semi-major axis (arcseconds)
i:	47.6	Inclination (degrees)
Ω:	149.6	Longitude of ascending node (degrees)
T:	2116.383	Epoch of periastron passage (year)
e:	0.331	Eccentricity
ω:	155.2	Longitude of periastron (degrees)
Start-Year:	1961.065	Year
End-Year:	2088.935	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS664
Position:	050600.93+355611.1	Epoch-2000 right ascension and declination
WDS-ID:	05060+3556	WDS designation
Discoverer Code:	HDS664	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	32608	HD catalog number
Hipparcos number:	23724	Hipparcos catalog number
V1:	6.73	Magnitude of the primary
V2:	8.62	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2011	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Cve2017b	Reference

Double Star Orbit for HDS664

WDS 6th Orbit including measures of HDS664

-- 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 HDS664

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.367    91.78
--------------------------
1961.07    0.387   179.26
1962.07    0.375   181.49
1963.07    0.363   183.87
1964.07    0.350   186.41
1965.07    0.338   189.13
1966.07    0.326   192.07
1967.07    0.313   195.23
1968.07    0.301   198.66
1969.07    0.289   202.38
1970.07    0.277   206.41
1971.07    0.266   210.80
1972.07    0.255   215.55
1973.07    0.246   220.70
1974.07    0.237   226.23
1975.07    0.230   232.14
1976.07    0.225   238.39
1977.07    0.221   244.91
1978.07    0.219   251.60
1979.07    0.218   258.38
1980.07    0.220   265.13
1981.07    0.223   271.74
1982.07    0.227   278.13
1983.07    0.233   284.25
1984.07    0.239   290.06
1985.07    0.246   295.56
1986.07    0.253   300.74
1987.07    0.260   305.65
1988.07    0.267   310.29
1989.07    0.274   314.71
1990.07    0.279   318.93
1991.07    0.284   323.00
1992.07    0.288   326.94
1993.07    0.292   330.77
1994.07    0.294   334.54
1995.07    0.295   338.26
1996.07    0.296   341.94
1997.07    0.296   345.63
1998.07    0.295   349.31
1999.07    0.294   353.03
2000.07    0.293   356.77
2001.07    0.291     0.57
2002.07    0.289     4.41
2003.07    0.287     8.30
2004.07    0.285    12.25
2005.07    0.283    16.25
2006.07    0.282    20.30
2007.07    0.281    24.39
2008.07    0.280    28.50
2009.07    0.280    32.61
2010.07    0.281    36.73
2011.07    0.282    40.82
2012.07    0.283    44.86
2013.07    0.286    48.85
2014.07    0.289    52.76
2015.07    0.293    56.58
2016.07    0.297    60.30
2017.07    0.302    63.91
2018.07    0.307    67.39
2019.07    0.313    70.75
2020.07    0.319    73.98
2021.07    0.326    77.08
2022.07    0.333    80.06
2023.07    0.341    82.90
2024.07    0.348    85.63
2025.07    0.356    88.24
2026.07    0.364    90.73
2027.07    0.372    93.12
2028.07    0.380    95.40
2029.07    0.388    97.59
2030.07    0.396    99.69
2031.07    0.405   101.70
2032.07    0.413   103.63
2033.07    0.421   105.49
2034.07    0.429   107.28
2035.07    0.437   109.01
2036.07    0.444   110.67
2037.07    0.452   112.28
2038.07    0.459   113.83
2039.07    0.466   115.34
2040.07    0.473   116.80
2041.07    0.480   118.22
2042.07    0.487   119.61
2043.07    0.493   120.95
2044.07    0.499   122.27
2045.07    0.505   123.55
2046.07    0.510   124.80
2047.07    0.515   126.03
2048.07    0.520   127.24
2049.07    0.524   128.42
2050.07    0.529   129.59
2051.07    0.533   130.73
2052.07    0.536   131.87
2053.07    0.539   132.98
2054.07    0.542   134.09
2055.07    0.545   135.18
2056.07    0.547   136.27
2057.07    0.548   137.34
2058.07    0.550   138.41
2059.07    0.551   139.48
2060.07    0.551   140.54
2061.07    0.552   141.60
2062.07    0.551   142.66
2063.07    0.551   143.73
2064.07    0.550   144.79
2065.07    0.549   145.86
2066.07    0.547   146.94
2067.07    0.544   148.03
2068.07    0.542   149.12
2069.07    0.539   150.23
2070.07    0.535   151.35
2071.07    0.531   152.48
2072.07    0.527   153.64
2073.07    0.522   154.81
2074.07    0.517   156.01
2075.07    0.511   157.23
2076.07    0.505   158.49
2077.07    0.498   159.77
2078.07    0.491   161.09
2079.07    0.483   162.45
2080.07    0.475   163.86
2081.07    0.467   165.31
2082.07    0.458   166.82
2083.07    0.449   168.39
2084.07    0.439   170.03
2085.07    0.429   171.74
2086.07    0.419   173.54
2087.07    0.408   175.43
2088.07    0.397   177.43

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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 15:33:41