Double Star Calculator - Orbit

Orbital Elements for B1115

WDS:	B1115	WDS ID/Discoverer
P:	135.490	Orbital period (years)
a:	0.33052	Semi-major axis (arcseconds)
i:	141.98	Inclination (degrees)
Ω:	104.37	Longitude of ascending node (degrees)
T:	2005.782	Epoch of periastron passage (year)
e:	0.4413	Eccentricity
ω:	271.57	Longitude of periastron (degrees)
Start-Year:	1957.255	Year
End-Year:	2092.745	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1115
Position:	091231.92-403153.6	Epoch-2000 right ascension and declination
WDS-ID:	09125-4032	WDS designation
Discoverer Code:	B1115	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	79400	HD catalog number
Hipparcos number:	45191	Hipparcos catalog number
V1:	9.32	Magnitude of the primary
V2:	9.83	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	Msn2023	Reference

Double Star Orbit for B1115

WDS 6th Orbit including measures of B1115

-- 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 B1115

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.299    89.71
--------------------------
1957.26    0.371   344.27
1958.26    0.371   342.78
1959.26    0.370   341.29
1960.26    0.369   339.78
1961.26    0.368   338.27
1962.26    0.367   336.75
1963.26    0.366   335.22
1964.26    0.365   333.68
1965.26    0.363   332.14
1966.26    0.362   330.57
1967.26    0.360   329.00
1968.26    0.358   327.41
1969.26    0.357   325.80
1970.26    0.355   324.18
1971.26    0.352   322.54
1972.26    0.350   320.88
1973.26    0.348   319.19
1974.26    0.345   317.48
1975.26    0.342   315.75
1976.26    0.339   313.98
1977.26    0.336   312.18
1978.26    0.332   310.34
1979.26    0.329   308.46
1980.26    0.325   306.53
1981.26    0.320   304.56
1982.26    0.316   302.53
1983.26    0.311   300.44
1984.26    0.306   298.28
1985.26    0.300   296.04
1986.26    0.294   293.71
1987.26    0.288   291.29
1988.26    0.281   288.75
1989.26    0.274   286.09
1990.26    0.266   283.28
1991.26    0.259   280.30
1992.26    0.250   277.13
1993.26    0.242   273.74
1994.26    0.232   270.08
1995.26    0.223   266.13
1996.26    0.213   261.82
1997.26    0.203   257.09
1998.26    0.194   251.88
1999.26    0.184   246.11
2000.26    0.174   239.70
2001.26    0.166   232.59
2002.26    0.158   224.75
2003.26    0.152   216.20
2004.26    0.148   207.04
2005.26    0.146   197.48
2006.26    0.146   187.80
2007.26    0.149   178.31
2008.26    0.153   169.27
2009.26    0.160   160.86
2010.26    0.167   153.18
2011.26    0.176   146.22
2012.26    0.186   139.94
2013.26    0.195   134.28
2014.26    0.205   129.15
2015.26    0.215   124.49
2016.26    0.224   120.23
2017.26    0.233   116.31
2018.26    0.242   112.68
2019.26    0.251   109.30
2020.26    0.259   106.13
2021.26    0.266   103.15
2022.26    0.273   100.32
2023.26    0.280    97.64
2024.26    0.286    95.08
2025.26    0.292    92.63
2026.26    0.298    90.28
2027.26    0.303    88.01
2028.26    0.308    85.81
2029.26    0.313    83.68
2030.26    0.317    81.61
2031.26    0.321    79.60
2032.26    0.325    77.63
2033.26    0.329    75.71
2034.26    0.332    73.83
2035.26    0.335    71.98
2036.26    0.338    70.17
2037.26    0.341    68.39
2038.26    0.343    66.64
2039.26    0.346    64.91
2040.26    0.348    63.20
2041.26    0.350    61.51
2042.26    0.352    59.85
2043.26    0.354    58.20
2044.26    0.355    56.57
2045.26    0.357    54.95
2046.26    0.358    53.34
2047.26    0.360    51.75
2048.26    0.361    50.17
2049.26    0.362    48.61
2050.26    0.363    47.05
2051.26    0.364    45.50
2052.26    0.365    43.96
2053.26    0.366    42.43
2054.26    0.367    40.90
2055.26    0.368    39.38
2056.26    0.369    37.87
2057.26    0.369    36.36
2058.26    0.370    34.86
2059.26    0.371    33.37
2060.26    0.371    31.88
2061.26    0.372    30.39
2062.26    0.372    28.91
2063.26    0.373    27.43
2064.26    0.373    25.95
2065.26    0.373    24.48
2066.26    0.374    23.01
2067.26    0.374    21.54
2068.26    0.374    20.07
2069.26    0.375    18.61
2070.26    0.375    17.15
2071.26    0.375    15.69
2072.26    0.375    14.23
2073.26    0.375    12.77
2074.26    0.375    11.32
2075.26    0.376     9.86
2076.26    0.376     8.41
2077.26    0.376     6.95
2078.26    0.376     5.50
2079.26    0.376     4.05
2080.26    0.376     2.59
2081.26    0.375     1.14
2082.26    0.375   359.68
2083.26    0.375   358.22
2084.26    0.375   356.76
2085.26    0.375   355.30
2086.26    0.374   353.84
2087.26    0.374   352.38
2088.26    0.374   350.91
2089.26    0.373   349.44
2090.26    0.373   347.96
2091.26    0.372   346.49
2092.26    0.372   345.00

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 16:15:04