Double Star Calculator - Orbit

Orbital Elements for HEI104

WDS:	HEI104	WDS ID/Discoverer
P:	140.000	Orbital period (years)
a:	0.16	Semi-major axis (arcseconds)
i:	84.6	Inclination (degrees)
Ω:	182.4	Longitude of ascending node (degrees)
T:	2034.124	Epoch of periastron passage (year)
e:	0.42	Eccentricity
ω:	139.9	Longitude of periastron (degrees)
Start-Year:	1955.0	Year
End-Year:	2095.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI104
Position:	050449.09+131831.9	Epoch-2000 right ascension and declination
WDS-ID:	05048+1319	WDS designation
Discoverer Code:	HEI104	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.08	Magnitude of the primary
V2:	7.97	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	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:	Tok2019c	Reference

Double Star Orbit for HEI104

WDS 6th Orbit including measures of HEI104

-- 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 HEI104

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.010   280.77
--------------------------
1955.00    0.143   175.83
1956.00    0.147   176.10
1957.00    0.151   176.35
1958.00    0.154   176.59
1959.00    0.158   176.83
1960.00    0.161   177.05
1961.00    0.165   177.26
1962.00    0.168   177.46
1963.00    0.171   177.66
1964.00    0.174   177.85
1965.00    0.177   178.03
1966.00    0.180   178.21
1967.00    0.182   178.38
1968.00    0.185   178.54
1969.00    0.187   178.71
1970.00    0.189   178.87
1971.00    0.191   179.02
1972.00    0.193   179.17
1973.00    0.195   179.32
1974.00    0.197   179.47
1975.00    0.198   179.61
1976.00    0.200   179.75
1977.00    0.201   179.89
1978.00    0.202   180.03
1979.00    0.203   180.17
1980.00    0.204   180.30
1981.00    0.205   180.44
1982.00    0.205   180.57
1983.00    0.205   180.71
1984.00    0.206   180.84
1985.00    0.205   180.97
1986.00    0.205   181.11
1987.00    0.205   181.24
1988.00    0.204   181.37
1989.00    0.204   181.51
1990.00    0.203   181.65
1991.00    0.201   181.78
1992.00    0.200   181.92
1993.00    0.199   182.06
1994.00    0.197   182.21
1995.00    0.195   182.35
1996.00    0.193   182.50
1997.00    0.190   182.66
1998.00    0.188   182.82
1999.00    0.185   182.98
2000.00    0.182   183.15
2001.00    0.178   183.32
2002.00    0.175   183.50
2003.00    0.171   183.69
2004.00    0.167   183.88
2005.00    0.162   184.09
2006.00    0.158   184.31
2007.00    0.153   184.54
2008.00    0.148   184.79
2009.00    0.142   185.06
2010.00    0.136   185.35
2011.00    0.130   185.67
2012.00    0.124   186.01
2013.00    0.117   186.40
2014.00    0.110   186.83
2015.00    0.103   187.33
2016.00    0.096   187.90
2017.00    0.088   188.57
2018.00    0.079   189.38
2019.00    0.071   190.37
2020.00    0.062   191.65
2021.00    0.053   193.34
2022.00    0.044   195.73
2023.00    0.035   199.38
2024.00    0.026   205.68
2025.00    0.017   218.74
2026.00    0.010   252.33
2027.00    0.012   306.33
2028.00    0.019   333.01
2029.00    0.028   343.78
2030.00    0.037   349.26
2031.00    0.046   352.58
2032.00    0.055   354.82
2033.00    0.063   356.46
2034.00    0.070   357.73
2035.00    0.077   358.76
2036.00    0.083   359.64
2037.00    0.089     0.40
2038.00    0.093     1.08
2039.00    0.097     1.70
2040.00    0.099     2.29
2041.00    0.101     2.85
2042.00    0.102     3.39
2043.00    0.103     3.92
2044.00    0.102     4.46
2045.00    0.101     5.00
2046.00    0.100     5.56
2047.00    0.098     6.13
2048.00    0.095     6.73
2049.00    0.092     7.37
2050.00    0.089     8.06
2051.00    0.085     8.80
2052.00    0.081     9.61
2053.00    0.077    10.50
2054.00    0.073    11.50
2055.00    0.068    12.64
2056.00    0.063    13.94
2057.00    0.058    15.46
2058.00    0.053    17.26
2059.00    0.048    19.43
2060.00    0.043    22.11
2061.00    0.038    25.49
2062.00    0.033    29.87
2063.00    0.029    35.73
2064.00    0.024    43.79
2065.00    0.021    55.01
2066.00    0.018    70.28
2067.00    0.017    88.96
2068.00    0.018   107.85
2069.00    0.020   123.55
2070.00    0.024   135.17
2071.00    0.028   143.50
2072.00    0.033   149.55
2073.00    0.038   154.05
2074.00    0.043   157.49
2075.00    0.048   160.21
2076.00    0.053   162.40
2077.00    0.059   164.19
2078.00    0.064   165.70
2079.00    0.069   166.98
2080.00    0.074   168.08
2081.00    0.079   169.04
2082.00    0.084   169.88
2083.00    0.089   170.63
2084.00    0.094   171.30
2085.00    0.099   171.90
2086.00    0.104   172.45
2087.00    0.108   172.95
2088.00    0.113   173.41
2089.00    0.118   173.83
2090.00    0.122   174.22
2091.00    0.126   174.59
2092.00    0.131   174.93
2093.00    0.135   175.25
2094.00    0.139   175.55

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 15:33:27