Double Star Calculator - Orbit

Orbital Elements for BU1146

WDS:	BU1146	WDS ID/Discoverer
P:	219.300	Orbital period (years)
a:	0.206	Semi-major axis (arcseconds)
i:	149.6	Inclination (degrees)
Ω:	144.1	Longitude of ascending node (degrees)
T:	1931.000	Epoch of periastron passage (year)
e:	0.356	Eccentricity
ω:	276.7	Longitude of periastron (degrees)
Start-Year:	1915.35	Year
End-Year:	2134.65	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU1146
Position:	224827.40+310602.5	Epoch-2000 right ascension and declination
WDS-ID:	22485+3106	WDS designation
Discoverer Code:	BU1146	Discover designation and components
ADS number:	16278	Aitken Double Star catalog
HD number:	215955	HD catalog number
Hipparcos number:	112611	Hipparcos catalog number
V1:	7.84	Magnitude of the primary
V2:	8.79	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2005	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Doc2017i	Reference

Double Star Orbit for BU1146

WDS 6th Orbit including measures of BU1146

-- 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 BU1146

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.238    60.12
--------------------------
1915.35    0.139   285.14
1916.35    0.137   282.19
1917.35    0.134   279.12
1918.35    0.131   275.93
1919.35    0.129   272.61
1920.35    0.127   269.17
1921.35    0.124   265.61
1922.35    0.122   261.92
1923.35    0.121   258.11
1924.35    0.119   254.20
1925.35    0.118   250.18
1926.35    0.116   246.07
1927.35    0.116   241.90
1928.35    0.115   237.67
1929.35    0.115   233.40
1930.35    0.115   229.12
1931.35    0.115   224.85
1932.35    0.115   220.61
1933.35    0.116   216.42
1934.35    0.117   212.29
1935.35    0.119   208.25
1936.35    0.120   204.30
1937.35    0.122   200.46
1938.35    0.124   196.73
1939.35    0.126   193.12
1940.35    0.128   189.63
1941.35    0.130   186.26
1942.35    0.133   183.02
1943.35    0.135   179.89
1944.35    0.138   176.87
1945.35    0.140   173.97
1946.35    0.143   171.17
1947.35    0.146   168.47
1948.35    0.148   165.86
1949.35    0.151   163.35
1950.35    0.153   160.92
1951.35    0.156   158.58
1952.35    0.159   156.31
1953.35    0.161   154.11
1954.35    0.163   151.97
1955.35    0.166   149.90
1956.35    0.168   147.89
1957.35    0.171   145.93
1958.35    0.173   144.03
1959.35    0.175   142.17
1960.35    0.177   140.36
1961.35    0.179   138.59
1962.35    0.181   136.87
1963.35    0.183   135.18
1964.35    0.185   133.52
1965.35    0.187   131.90
1966.35    0.189   130.31
1967.35    0.191   128.75
1968.35    0.192   127.22
1969.35    0.194   125.72
1970.35    0.196   124.24
1971.35    0.197   122.78
1972.35    0.199   121.35
1973.35    0.200   119.94
1974.35    0.202   118.55
1975.35    0.203   117.18
1976.35    0.204   115.82
1977.35    0.206   114.49
1978.35    0.207   113.17
1979.35    0.208   111.86
1980.35    0.209   110.58
1981.35    0.210   109.30
1982.35    0.212   108.04
1983.35    0.213   106.79
1984.35    0.214   105.56
1985.35    0.215   104.33
1986.35    0.216   103.12
1987.35    0.217   101.92
1988.35    0.218   100.73
1989.35    0.218    99.55
1990.35    0.219    98.38
1991.35    0.220    97.21
1992.35    0.221    96.06
1993.35    0.222    94.91
1994.35    0.223    93.78
1995.35    0.223    92.65
1996.35    0.224    91.53
1997.35    0.225    90.41
1998.35    0.225    89.30
1999.35    0.226    88.20
2000.35    0.227    87.11
2001.35    0.227    86.02
2002.35    0.228    84.93
2003.35    0.229    83.86
2004.35    0.229    82.78
2005.35    0.230    81.72
2006.35    0.230    80.66
2007.35    0.231    79.60
2008.35    0.231    78.55
2009.35    0.232    77.50
2010.35    0.232    76.46
2011.35    0.233    75.42
2012.35    0.233    74.39
2013.35    0.234    73.36
2014.35    0.234    72.33
2015.35    0.235    71.31
2016.35    0.235    70.29
2017.35    0.235    69.27
2018.35    0.236    68.26
2019.35    0.236    67.25
2020.35    0.236    66.24
2021.35    0.237    65.24
2022.35    0.237    64.24
2023.35    0.237    63.24
2024.35    0.238    62.25
2025.35    0.238    61.26
2026.35    0.238    60.27
2027.35    0.239    59.28
2028.35    0.239    58.30
2029.35    0.239    57.32
2030.35    0.239    56.34
2031.35    0.240    55.36
2032.35    0.240    54.38
2033.35    0.240    53.41
2034.35    0.240    52.44
2035.35    0.241    51.46
2036.35    0.241    50.50
2037.35    0.241    49.53
2038.35    0.241    48.56
2039.35    0.241    47.60
2040.35    0.241    46.63
2041.35    0.242    45.67
2042.35    0.242    44.71
2043.35    0.242    43.75
2044.35    0.242    42.79
2045.35    0.242    41.83
2046.35    0.242    40.87
2047.35    0.242    39.91
2048.35    0.242    38.96
2049.35    0.242    38.00
2050.35    0.242    37.04
2051.35    0.242    36.09
2052.35    0.242    35.13
2053.35    0.242    34.17
2054.35    0.242    33.22
2055.35    0.242    32.26
2056.35    0.242    31.30
2057.35    0.242    30.35
2058.35    0.242    29.39
2059.35    0.242    28.43
2060.35    0.242    27.47
2061.35    0.242    26.51
2062.35    0.241    25.54
2063.35    0.241    24.58
2064.35    0.241    23.61
2065.35    0.241    22.65
2066.35    0.241    21.68
2067.35    0.240    20.71
2068.35    0.240    19.73
2069.35    0.240    18.76
2070.35    0.239    17.78
2071.35    0.239    16.80
2072.35    0.239    15.82
2073.35    0.238    14.83
2074.35    0.238    13.84
2075.35    0.238    12.85
2076.35    0.237    11.85
2077.35    0.237    10.85
2078.35    0.236     9.84
2079.35    0.235     8.83
2080.35    0.235     7.82
2081.35    0.234     6.80
2082.35    0.234     5.77
2083.35    0.233     4.74
2084.35    0.232     3.71
2085.35    0.232     2.66
2086.35    0.231     1.61
2087.35    0.230     0.55
2088.35    0.229   359.49
2089.35    0.228   358.42
2090.35    0.227   357.33
2091.35    0.226   356.24
2092.35    0.225   355.15
2093.35    0.224   354.04
2094.35    0.223   352.92
2095.35    0.222   351.79
2096.35    0.221   350.64
2097.35    0.220   349.49
2098.35    0.219   348.32
2099.35    0.217   347.14
2100.35    0.216   345.95
2101.35    0.215   344.74
2102.35    0.213   343.51
2103.35    0.212   342.27
2104.35    0.210   341.01
2105.35    0.209   339.73
2106.35    0.207   338.43
2107.35    0.205   337.11
2108.35    0.204   335.77
2109.35    0.202   334.40
2110.35    0.200   333.01
2111.35    0.198   331.59
2112.35    0.196   330.14
2113.35    0.194   328.67
2114.35    0.192   327.16
2115.35    0.190   325.62
2116.35    0.188   324.04
2117.35    0.185   322.43
2118.35    0.183   320.77
2119.35    0.181   319.08
2120.35    0.178   317.33
2121.35    0.176   315.54
2122.35    0.173   313.69
2123.35    0.171   311.79
2124.35    0.168   309.83
2125.35    0.165   307.81
2126.35    0.163   305.72
2127.35    0.160   303.56
2128.35    0.157   301.32
2129.35    0.154   299.00
2130.35    0.151   296.59
2131.35    0.149   294.10
2132.35    0.146   291.50
2133.35    0.143   288.81
2134.35    0.140   286.00

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 18:43:58