Double Star Calculator - Orbit

Orbital Elements for HU425AA,AB

WDS:	HU425AA,AB	WDS ID/Discoverer
P:	125.000	Orbital period (years)
a:	0.355	Semi-major axis (arcseconds)
i:	134.0	Inclination (degrees)
Ω:	0.0	Longitude of ascending node (degrees)
T:	1975.000	Epoch of periastron passage (year)
e:	0.06	Eccentricity
ω:	172.0	Longitude of periastron (degrees)
Start-Year:	1962.5	Year
End-Year:	2087.5	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU425AA,AB
Position:	022111.45+213521.4	Epoch-2000 right ascension and declination
WDS-ID:	02212+2136	WDS designation
Discoverer Code:	HU425AA,AB	Discover designation and components
ADS number:	1796	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	10959	Hipparcos catalog number
V1:	10.74	Magnitude of the primary
V2:	11.21	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		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:	Hei1995	Reference

Double Star Orbit for HU425AA,AB

WDS 6th Orbit including measures of HU425AA,AB

-- 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 HU425AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.338    27.02
--------------------------
1962.50    0.285   217.94
1963.50    0.290   214.90
1964.50    0.295   211.97
1965.50    0.300   209.13
1966.50    0.305   206.39
1967.50    0.310   203.72
1968.50    0.314   201.13
1969.50    0.318   198.61
1970.50    0.321   196.14
1971.50    0.324   193.73
1972.50    0.327   191.36
1973.50    0.329   189.03
1974.50    0.331   186.72
1975.50    0.333   184.44
1976.50    0.334   182.17
1977.50    0.334   179.91
1978.50    0.334   177.65
1979.50    0.333   175.39
1980.50    0.332   173.11
1981.50    0.330   170.82
1982.50    0.328   168.50
1983.50    0.326   166.15
1984.50    0.323   163.76
1985.50    0.320   161.33
1986.50    0.316   158.84
1987.50    0.312   156.29
1988.50    0.308   153.68
1989.50    0.304   150.99
1990.50    0.299   148.21
1991.50    0.294   145.35
1992.50    0.289   142.39
1993.50    0.284   139.34
1994.50    0.280   136.17
1995.50    0.275   132.90
1996.50    0.270   129.51
1997.50    0.266   126.01
1998.50    0.262   122.40
1999.50    0.258   118.68
2000.50    0.255   114.86
2001.50    0.252   110.95
2002.50    0.250   106.97
2003.50    0.249   102.92
2004.50    0.248    98.83
2005.50    0.247    94.73
2006.50    0.248    90.62
2007.50    0.249    86.53
2008.50    0.250    82.48
2009.50    0.252    78.50
2010.50    0.255    74.59
2011.50    0.259    70.78
2012.50    0.262    67.07
2013.50    0.267    63.47
2014.50    0.271    60.00
2015.50    0.276    56.64
2016.50    0.282    53.41
2017.50    0.287    50.30
2018.50    0.293    47.31
2019.50    0.299    44.43
2020.50    0.304    41.67
2021.50    0.310    39.00
2022.50    0.316    36.44
2023.50    0.322    33.96
2024.50    0.327    31.57
2025.50    0.333    29.26
2026.50    0.338    27.02
2027.50    0.343    24.85
2028.50    0.348    22.74
2029.50    0.352    20.68
2030.50    0.356    18.68
2031.50    0.360    16.71
2032.50    0.363    14.79
2033.50    0.366    12.90
2034.50    0.369    11.03
2035.50    0.371     9.20
2036.50    0.373     7.38
2037.50    0.374     5.58
2038.50    0.375     3.79
2039.50    0.376     2.00
2040.50    0.376     0.22
2041.50    0.376   358.44
2042.50    0.375   356.66
2043.50    0.374   354.86
2044.50    0.372   353.05
2045.50    0.370   351.23
2046.50    0.368   349.38
2047.50    0.365   347.50
2048.50    0.362   345.60
2049.50    0.358   343.65
2050.50    0.354   341.67
2051.50    0.350   339.64
2052.50    0.345   337.55
2053.50    0.340   335.41
2054.50    0.335   333.20
2055.50    0.330   330.92
2056.50    0.324   328.56
2057.50    0.318   326.12
2058.50    0.312   323.58
2059.50    0.306   320.95
2060.50    0.300   318.21
2061.50    0.294   315.36
2062.50    0.288   312.39
2063.50    0.282   309.29
2064.50    0.277   306.07
2065.50    0.271   302.71
2066.50    0.266   299.23
2067.50    0.261   295.61
2068.50    0.257   291.86
2069.50    0.253   287.99
2070.50    0.250   284.02
2071.50    0.247   279.95
2072.50    0.245   275.80
2073.50    0.244   271.59
2074.50    0.243   267.35
2075.50    0.243   263.10
2076.50    0.244   258.86
2077.50    0.246   254.66
2078.50    0.248   250.52
2079.50    0.250   246.46
2080.50    0.253   242.49
2081.50    0.257   238.62
2082.50    0.261   234.87
2083.50    0.266   231.24
2084.50    0.270   227.74
2085.50    0.275   224.35
2086.50    0.280   221.09

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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 14:59:39