Double Star Calculator - Orbit

Orbital Elements for BU696AB

WDS:	BU696AB	WDS ID/Discoverer
P:	160.300	Orbital period (years)
a:	0.386	Semi-major axis (arcseconds)
i:	84.9	Inclination (degrees)
Ω:	172.2	Longitude of ascending node (degrees)
T:	2006.740	Epoch of periastron passage (year)
e:	0.909	Eccentricity
ω:	46.4	Longitude of periastron (degrees)
Start-Year:	1944.85	Year
End-Year:	2105.15	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU696AB
Position:	220430.12+155128.6	Epoch-2000 right ascension and declination
WDS-ID:	22045+1551	WDS designation
Discoverer Code:	BU696AB	Discover designation and components
ADS number:	15599	Aitken Double Star catalog
HD number:	209622	HD catalog number
Hipparcos number:	108961	Hipparcos catalog number
V1:	7.95	Magnitude of the primary
V2:	9.63	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2012	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	FMR2013d	Reference

Double Star Orbit for BU696AB

WDS 6th Orbit including measures of BU696AB

-- 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 BU696AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.387   354.49
--------------------------
1944.85    0.449   358.51
1945.85    0.444   358.57
1946.85    0.440   358.63
1947.85    0.435   358.70
1948.85    0.430   358.77
1949.85    0.426   358.83
1950.85    0.421   358.90
1951.85    0.416   358.97
1952.85    0.410   359.05
1953.85    0.405   359.12
1954.85    0.400   359.20
1955.85    0.394   359.28
1956.85    0.388   359.36
1957.85    0.383   359.44
1958.85    0.377   359.53
1959.85    0.371   359.61
1960.85    0.365   359.71
1961.85    0.358   359.80
1962.85    0.352   359.90
1963.85    0.346     0.00
1964.85    0.339     0.11
1965.85    0.332     0.22
1966.85    0.326     0.33
1967.85    0.319     0.45
1968.85    0.311     0.58
1969.85    0.304     0.71
1970.85    0.297     0.84
1971.85    0.289     0.99
1972.85    0.282     1.14
1973.85    0.274     1.30
1974.85    0.266     1.47
1975.85    0.258     1.65
1976.85    0.250     1.84
1977.85    0.242     2.05
1978.85    0.233     2.27
1979.85    0.225     2.51
1980.85    0.216     2.76
1981.85    0.207     3.04
1982.85    0.198     3.34
1983.85    0.189     3.67
1984.85    0.179     4.04
1985.85    0.170     4.45
1986.85    0.160     4.91
1987.85    0.150     5.42
1988.85    0.140     6.01
1989.85    0.130     6.70
1990.85    0.119     7.50
1991.85    0.109     8.46
1992.85    0.098     9.62
1993.85    0.087    11.08
1994.85    0.076    12.96
1995.85    0.065    15.50
1996.85    0.053    19.10
1997.85    0.042    24.62
1998.85    0.031    33.99
1999.85    0.022    52.02
2000.85    0.017    86.29
2001.85    0.020   124.23
2002.85    0.029   145.98
2003.85    0.038   157.29
2004.85    0.046   164.18
2005.85    0.048   169.54
2006.85    0.019   180.53
2007.85    0.039   346.11
2008.85    0.084   349.76
2009.85    0.120   350.97
2010.85    0.150   351.66
2011.85    0.176   352.13
2012.85    0.199   352.49
2013.85    0.219   352.77
2014.85    0.238   353.01
2015.85    0.256   353.21
2016.85    0.272   353.39
2017.85    0.287   353.55
2018.85    0.302   353.69
2019.85    0.315   353.82
2020.85    0.327   353.94
2021.85    0.339   354.05
2022.85    0.350   354.16
2023.85    0.361   354.25
2024.85    0.371   354.35
2025.85    0.381   354.43
2026.85    0.390   354.52
2027.85    0.398   354.60
2028.85    0.407   354.67
2029.85    0.415   354.75
2030.85    0.422   354.82
2031.85    0.429   354.89
2032.85    0.436   354.95
2033.85    0.443   355.02
2034.85    0.449   355.08
2035.85    0.455   355.14
2036.85    0.460   355.20
2037.85    0.466   355.26
2038.85    0.471   355.31
2039.85    0.476   355.37
2040.85    0.480   355.42
2041.85    0.485   355.48
2042.85    0.489   355.53
2043.85    0.493   355.58
2044.85    0.496   355.63
2045.85    0.500   355.68
2046.85    0.503   355.73
2047.85    0.506   355.78
2048.85    0.509   355.83
2049.85    0.512   355.88
2050.85    0.515   355.92
2051.85    0.517   355.97
2052.85    0.519   356.02
2053.85    0.521   356.06
2054.85    0.523   356.11
2055.85    0.525   356.15
2056.85    0.527   356.20
2057.85    0.528   356.24
2058.85    0.529   356.29
2059.85    0.530   356.33
2060.85    0.531   356.37
2061.85    0.532   356.42
2062.85    0.533   356.46
2063.85    0.533   356.51
2064.85    0.534   356.55
2065.85    0.534   356.59
2066.85    0.534   356.64
2067.85    0.534   356.68
2068.85    0.534   356.72
2069.85    0.534   356.77
2070.85    0.533   356.81
2071.85    0.533   356.85
2072.85    0.532   356.90
2073.85    0.531   356.94
2074.85    0.530   356.98
2075.85    0.529   357.03
2076.85    0.528   357.07
2077.85    0.527   357.12
2078.85    0.526   357.16
2079.85    0.524   357.21
2080.85    0.523   357.25
2081.85    0.521   357.30
2082.85    0.519   357.34
2083.85    0.517   357.39
2084.85    0.515   357.44
2085.85    0.513   357.48
2086.85    0.510   357.53
2087.85    0.508   357.58
2088.85    0.506   357.63
2089.85    0.503   357.68
2090.85    0.500   357.73
2091.85    0.497   357.78
2092.85    0.494   357.83
2093.85    0.491   357.88
2094.85    0.488   357.93
2095.85    0.485   357.98
2096.85    0.481   358.03
2097.85    0.478   358.09
2098.85    0.474   358.14
2099.85    0.470   358.20
2100.85    0.467   358.25
2101.85    0.463   358.31
2102.85    0.459   358.37
2103.85    0.454   358.43
2104.85    0.450   358.49

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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 18:35:38