Double Star Calculator - Orbit

Orbital Elements for B1025

WDS:	B1025	WDS ID/Discoverer
P:	126.110	Orbital period (years)
a:	0.609	Semi-major axis (arcseconds)
i:	109.1	Inclination (degrees)
Ω:	167.2	Longitude of ascending node (degrees)
T:	1920.970	Epoch of periastron passage (year)
e:	0.544	Eccentricity
ω:	283.5	Longitude of periastron (degrees)
Start-Year:	1961.945	Year
End-Year:	2088.055	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1025
Position:	002018.56-324609.5	Epoch-2000 right ascension and declination
WDS-ID:	00203-3246	WDS designation
Discoverer Code:	B1025	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	1620	HD catalog number
Hipparcos number:	1625	Hipparcos catalog number
V1:	8.83	Magnitude of the primary
V2:	10.64	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2010	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Hrt2012a	Reference

Double Star Orbit for B1025

WDS 6th Orbit including measures of B1025

-- 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 B1025

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.578   353.77
--------------------------
1961.94    0.314   105.86
1962.94    0.309   102.87
1963.94    0.305    99.79
1964.94    0.302    96.64
1965.94    0.300    93.43
1966.94    0.298    90.17
1967.94    0.297    86.88
1968.94    0.296    83.57
1969.94    0.297    80.26
1970.94    0.298    76.98
1971.94    0.300    73.72
1972.94    0.303    70.52
1973.94    0.306    67.37
1974.94    0.310    64.31
1975.94    0.315    61.33
1976.94    0.320    58.44
1977.94    0.326    55.65
1978.94    0.332    52.96
1979.94    0.339    50.38
1980.94    0.346    47.91
1981.94    0.354    45.54
1982.94    0.362    43.27
1983.94    0.370    41.10
1984.94    0.379    39.03
1985.94    0.388    37.05
1986.94    0.397    35.16
1987.94    0.406    33.36
1988.94    0.415    31.63
1989.94    0.424    29.98
1990.94    0.434    28.40
1991.94    0.443    26.89
1992.94    0.452    25.44
1993.94    0.462    24.05
1994.94    0.471    22.71
1995.94    0.480    21.42
1996.94    0.489    20.19
1997.94    0.498    18.99
1998.94    0.507    17.84
1999.94    0.515    16.73
2000.94    0.524    15.65
2001.94    0.532    14.60
2002.94    0.539    13.59
2003.94    0.547    12.61
2004.94    0.554    11.65
2005.94    0.561    10.71
2006.94    0.568     9.80
2007.94    0.574     8.91
2008.94    0.580     8.03
2009.94    0.585     7.18
2010.94    0.590     6.33
2011.94    0.594     5.50
2012.94    0.598     4.69
2013.94    0.601     3.88
2014.94    0.604     3.08
2015.94    0.606     2.28
2016.94    0.607     1.49
2017.94    0.608     0.71
2018.94    0.608   359.92
2019.94    0.607   359.13
2020.94    0.605   358.34
2021.94    0.603   357.55
2022.94    0.599   356.74
2023.94    0.595   355.93
2024.94    0.589   355.10
2025.94    0.582   354.25
2026.94    0.574   353.38
2027.94    0.565   352.48
2028.94    0.554   351.55
2029.94    0.541   350.58
2030.94    0.527   349.56
2031.94    0.511   348.49
2032.94    0.493   347.33
2033.94    0.473   346.09
2034.94    0.451   344.73
2035.94    0.426   343.22
2036.94    0.399   341.51
2037.94    0.369   339.55
2038.94    0.337   337.21
2039.94    0.301   334.35
2040.94    0.263   330.68
2041.94    0.222   325.70
2042.94    0.180   318.45
2043.94    0.140   306.86
2044.94    0.106   286.93
2045.94    0.092   255.66
2046.94    0.106   224.32
2047.94    0.139   204.26
2048.94    0.179   192.54
2049.94    0.219   185.14
2050.94    0.257   179.98
2051.94    0.291   176.11
2052.94    0.322   173.02
2053.94    0.348   170.43
2054.94    0.371   168.19
2055.94    0.390   166.18
2056.94    0.406   164.34
2057.94    0.419   162.64
2058.94    0.429   161.02
2059.94    0.437   159.47
2060.94    0.443   157.97
2061.94    0.447   156.50
2062.94    0.449   155.05
2063.94    0.450   153.62
2064.94    0.450   152.19
2065.94    0.449   150.75
2066.94    0.446   149.29
2067.94    0.443   147.82
2068.94    0.439   146.33
2069.94    0.434   144.80
2070.94    0.428   143.24
2071.94    0.423   141.63
2072.94    0.416   139.98
2073.94    0.409   138.27
2074.94    0.402   136.51
2075.94    0.395   134.68
2076.94    0.388   132.79
2077.94    0.381   130.82
2078.94    0.373   128.77
2079.94    0.366   126.64
2080.94    0.358   124.42
2081.94    0.351   122.11
2082.94    0.344   119.70
2083.94    0.337   117.19
2084.94    0.331   114.59
2085.94    0.325   111.89
2086.94    0.319   109.08
2087.94    0.314   106.19

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 14:38:18