Double Star Calculator - Orbit

Orbital Elements for HEI676

WDS:	HEI676	WDS ID/Discoverer
P:	102.000	Orbital period (years)
a:	0.3988	Semi-major axis (arcseconds)
i:	169.0	Inclination (degrees)
Ω:	301.9	Longitude of ascending node (degrees)
T:	2006.390	Epoch of periastron passage (year)
e:	0.657	Eccentricity
ω:	340.0	Longitude of periastron (degrees)
Start-Year:	1974.0	Year
End-Year:	2076.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI676
Position:	060150.34-715735.3	Epoch-2000 right ascension and declination
WDS-ID:	06018-7158	WDS designation
Discoverer Code:	HEI676	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	42081	HD catalog number
Hipparcos number:	28573	Hipparcos catalog number
V1:	10.39	Magnitude of the primary
V2:	11.03	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2016e	Reference

Double Star Orbit for HEI676

WDS 6th Orbit including measures of HEI676

-- 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 HEI676

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.469   178.64
--------------------------
1974.00    0.597   122.58
1975.00    0.589   121.40
1976.00    0.582   120.19
1977.00    0.573   118.94
1978.00    0.565   117.66
1979.00    0.556   116.34
1980.00    0.546   114.97
1981.00    0.536   113.55
1982.00    0.526   112.08
1983.00    0.515   110.54
1984.00    0.503   108.94
1985.00    0.491   107.25
1986.00    0.478   105.48
1987.00    0.465   103.62
1988.00    0.451   101.64
1989.00    0.437    99.53
1990.00    0.422    97.28
1991.00    0.406    94.85
1992.00    0.390    92.23
1993.00    0.373    89.37
1994.00    0.355    86.23
1995.00    0.337    82.76
1996.00    0.318    78.87
1997.00    0.298    74.49
1998.00    0.277    69.46
1999.00    0.257    63.63
2000.00    0.235    56.74
2001.00    0.214    48.48
2002.00    0.193    38.38
2003.00    0.173    25.90
2004.00    0.156    10.42
2005.00    0.143   351.65
2006.00    0.137   330.25
2007.00    0.138   308.09
2008.00    0.147   287.50
2009.00    0.161   269.87
2010.00    0.179   255.39
2011.00    0.198   243.65
2012.00    0.219   234.05
2013.00    0.239   226.11
2014.00    0.260   219.43
2015.00    0.280   213.72
2016.00    0.300   208.77
2017.00    0.319   204.42
2018.00    0.337   200.56
2019.00    0.355   197.09
2020.00    0.372   193.95
2021.00    0.389   191.08
2022.00    0.405   188.44
2023.00    0.420   186.00
2024.00    0.435   183.73
2025.00    0.449   181.60
2026.00    0.463   179.60
2027.00    0.476   177.71
2028.00    0.488   175.92
2029.00    0.500   174.22
2030.00    0.512   172.60
2031.00    0.523   171.04
2032.00    0.533   169.55
2033.00    0.543   168.12
2034.00    0.553   166.73
2035.00    0.562   165.40
2036.00    0.570   164.10
2037.00    0.579   162.84
2038.00    0.586   161.62
2039.00    0.594   160.42
2040.00    0.601   159.26
2041.00    0.607   158.12
2042.00    0.613   157.01
2043.00    0.619   155.91
2044.00    0.624   154.84
2045.00    0.629   153.78
2046.00    0.634   152.74
2047.00    0.638   151.71
2048.00    0.642   150.70
2049.00    0.645   149.70
2050.00    0.648   148.70
2051.00    0.651   147.72
2052.00    0.653   146.74
2053.00    0.655   145.77
2054.00    0.657   144.81
2055.00    0.658   143.85
2056.00    0.659   142.89
2057.00    0.659   141.93
2058.00    0.659   140.98
2059.00    0.659   140.02
2060.00    0.658   139.07
2061.00    0.657   138.11
2062.00    0.656   137.14
2063.00    0.654   136.18
2064.00    0.652   135.20
2065.00    0.650   134.22
2066.00    0.647   133.23
2067.00    0.644   132.24
2068.00    0.640   131.23
2069.00    0.636   130.21
2070.00    0.632   129.17
2071.00    0.627   128.12
2072.00    0.621   127.06
2073.00    0.616   125.97
2074.00    0.610   124.87
2075.00    0.603   123.74

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 15:42:47