Double Star Calculator - Orbit

Orbital Elements for HU374

WDS:	HU374	WDS ID/Discoverer
P:	130.000	Orbital period (years)
a:	0.229	Semi-major axis (arcseconds)
i:	120.5	Inclination (degrees)
Ω:	26.9	Longitude of ascending node (degrees)
T:	1983.100	Epoch of periastron passage (year)
e:	0.569	Eccentricity
ω:	177.5	Longitude of periastron (degrees)
Start-Year:	1960.0	Year
End-Year:	2090.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU374
Position:	214325.99+235305.4	Epoch-2000 right ascension and declination
WDS-ID:	21434+2353	WDS designation
Discoverer Code:	HU374	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	206719	HD catalog number
Hipparcos number:	107254	Hipparcos catalog number
V1:	9.4	Magnitude of the primary
V2:	9.4	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1987	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:	USN2002	Reference

Double Star Orbit for HU374

WDS 6th Orbit including measures of HU374

-- 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 HU374

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.310    39.43
--------------------------
1960.00    0.188   357.71
1961.00    0.179   355.91
1962.00    0.170   353.91
1963.00    0.161   351.69
1964.00    0.152   349.21
1965.00    0.142   346.40
1966.00    0.133   343.20
1967.00    0.124   339.51
1968.00    0.115   335.24
1969.00    0.106   330.24
1970.00    0.097   324.35
1971.00    0.090   317.41
1972.00    0.083   309.27
1973.00    0.078   299.89
1974.00    0.074   289.39
1975.00    0.073   278.18
1976.00    0.074   266.84
1977.00    0.076   255.97
1978.00    0.080   245.98
1979.00    0.085   237.02
1980.00    0.089   229.01
1981.00    0.094   221.79
1982.00    0.097   215.12
1983.00    0.099   208.79
1984.00    0.099   202.57
1985.00    0.097   196.24
1986.00    0.094   189.60
1987.00    0.090   182.44
1988.00    0.086   174.60
1989.00    0.082   165.96
1990.00    0.079   156.51
1991.00    0.077   146.40
1992.00    0.076   135.99
1993.00    0.078   125.73
1994.00    0.081   116.07
1995.00    0.086   107.30
1996.00    0.092    99.58
1997.00    0.099    92.87
1998.00    0.106    87.10
1999.00    0.115    82.12
2000.00    0.123    77.82
2001.00    0.132    74.09
2002.00    0.141    70.82
2003.00    0.149    67.93
2004.00    0.158    65.37
2005.00    0.167    63.07
2006.00    0.175    61.00
2007.00    0.184    59.12
2008.00    0.192    57.41
2009.00    0.200    55.84
2010.00    0.208    54.38
2011.00    0.216    53.04
2012.00    0.224    51.78
2013.00    0.231    50.61
2014.00    0.238    49.51
2015.00    0.245    48.47
2016.00    0.252    47.48
2017.00    0.258    46.55
2018.00    0.265    45.67
2019.00    0.271    44.82
2020.00    0.276    44.01
2021.00    0.282    43.23
2022.00    0.288    42.48
2023.00    0.293    41.77
2024.00    0.298    41.07
2025.00    0.303    40.40
2026.00    0.307    39.75
2027.00    0.312    39.12
2028.00    0.316    38.50
2029.00    0.320    37.90
2030.00    0.324    37.32
2031.00    0.328    36.75
2032.00    0.331    36.19
2033.00    0.334    35.64
2034.00    0.337    35.10
2035.00    0.340    34.57
2036.00    0.343    34.05
2037.00    0.345    33.54
2038.00    0.347    33.03
2039.00    0.349    32.53
2040.00    0.351    32.04
2041.00    0.353    31.55
2042.00    0.354    31.07
2043.00    0.356    30.58
2044.00    0.357    30.11
2045.00    0.358    29.63
2046.00    0.358    29.16
2047.00    0.359    28.69
2048.00    0.359    28.22
2049.00    0.359    27.75
2050.00    0.359    27.28
2051.00    0.359    26.81
2052.00    0.358    26.33
2053.00    0.358    25.86
2054.00    0.357    25.39
2055.00    0.356    24.91
2056.00    0.354    24.43
2057.00    0.353    23.94
2058.00    0.351    23.46
2059.00    0.350    22.96
2060.00    0.348    22.46
2061.00    0.345    21.96
2062.00    0.343    21.45
2063.00    0.340    20.93
2064.00    0.337    20.40
2065.00    0.334    19.86
2066.00    0.331    19.31
2067.00    0.328    18.75
2068.00    0.324    18.18
2069.00    0.320    17.60
2070.00    0.316    17.00
2071.00    0.312    16.38
2072.00    0.307    15.75
2073.00    0.302    15.10
2074.00    0.297    14.42
2075.00    0.292    13.73
2076.00    0.287    13.00
2077.00    0.281    12.25
2078.00    0.275    11.47
2079.00    0.269    10.65
2080.00    0.263     9.80
2081.00    0.257     8.90
2082.00    0.250     7.95
2083.00    0.243     6.96
2084.00    0.236     5.90
2085.00    0.228     4.77
2086.00    0.220     3.56
2087.00    0.213     2.27
2088.00    0.204     0.87
2089.00    0.196   359.36

Disclaimer

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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 18:29:07