Double Star Calculator - Orbit

Orbital Elements for B1493
WDS: B1493 WDS ID/Discoverer
P: 113.000 Orbital period (years)
a: 0.1625 Semi-major axis (arcseconds)
i: 140.5 Inclination (degrees)
Ω: 247.9 Longitude of ascending node (degrees)
T: 2005.000 Epoch of periastron passage (year)
e: 0.67 Eccentricity
ω: 170.2 Longitude of periastron (degrees)
Start-Year: 1968.5 Year
End-Year: 2081.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for B1493
Position: 055028.83-524604.5 Epoch-2000 right ascension and declination
WDS-ID: 05505-5246 WDS designation
Discoverer Code: B1493 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 39548 HD catalog number
Hipparcos number: 27583 Hipparcos catalog number
V1: 7.06 Magnitude of the primary
V2: 7.41 Magnitude of the secondary
Equinox: Equinox
Date: 2019 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: Tok2020e Reference

Double Star Orbit for B1493



WDS 6th Orbit including measures of B1493

-- 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 B1493
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.169   287.66
--------------------------
1968.50    0.246   241.50
1969.50    0.243   240.69
1970.50    0.240   239.86
1971.50    0.237   239.01
1972.50    0.233   238.14
1973.50    0.230   237.24
1974.50    0.226   236.31
1975.50    0.222   235.35
1976.50    0.218   234.35
1977.50    0.213   233.32
1978.50    0.209   232.24
1979.50    0.204   231.11
1980.50    0.199   229.92
1981.50    0.194   228.68
1982.50    0.189   227.36
1983.50    0.183   225.96
1984.50    0.177   224.48
1985.50    0.171   222.89
1986.50    0.165   221.19
1987.50    0.158   219.34
1988.50    0.152   217.33
1989.50    0.144   215.13
1990.50    0.137   212.70
1991.50    0.130   209.99
1992.50    0.122   206.94
1993.50    0.114   203.47
1994.50    0.106   199.47
1995.50    0.097   194.78
1996.50    0.089   189.22
1997.50    0.081   182.51
1998.50    0.073   174.31
1999.50    0.065   164.18
2000.50    0.059   151.72
2001.50    0.055   136.77
2002.50    0.052   119.78
2003.50    0.052   101.83
2004.50    0.053    84.08
2005.50    0.054    67.12
2006.50    0.055    51.01
2007.50    0.057    35.71
2008.50    0.059    21.39
2009.50    0.062     8.32
2010.50    0.067   356.73
2011.50    0.072   346.68
2012.50    0.078   338.07
2013.50    0.084   330.72
2014.50    0.091   324.43
2015.50    0.098   319.02
2016.50    0.105   314.33
2017.50    0.112   310.22
2018.50    0.119   306.59
2019.50    0.126   303.37
2020.50    0.132   300.47
2021.50    0.139   297.85
2022.50    0.145   295.47
2023.50    0.152   293.28
2024.50    0.158   291.27
2025.50    0.164   289.40
2026.50    0.169   287.66
2027.50    0.175   286.04
2028.50    0.180   284.51
2029.50    0.186   283.08
2030.50    0.191   281.72
2031.50    0.196   280.43
2032.50    0.200   279.20
2033.50    0.205   278.02
2034.50    0.209   276.90
2035.50    0.214   275.82
2036.50    0.218   274.79
2037.50    0.222   273.79
2038.50    0.225   272.82
2039.50    0.229   271.89
2040.50    0.232   270.98
2041.50    0.236   270.10
2042.50    0.239   269.24
2043.50    0.242   268.41
2044.50    0.244   267.59
2045.50    0.247   266.79
2046.50    0.250   266.01
2047.50    0.252   265.24
2048.50    0.254   264.49
2049.50    0.256   263.75
2050.50    0.258   263.02
2051.50    0.260   262.30
2052.50    0.262   261.59
2053.50    0.263   260.89
2054.50    0.264   260.20
2055.50    0.266   259.51
2056.50    0.267   258.83
2057.50    0.268   258.16
2058.50    0.268   257.49
2059.50    0.269   256.82
2060.50    0.269   256.15
2061.50    0.270   255.49
2062.50    0.270   254.83
2063.50    0.270   254.17
2064.50    0.270   253.51
2065.50    0.270   252.85
2066.50    0.269   252.18
2067.50    0.269   251.52
2068.50    0.268   250.85
2069.50    0.267   250.18
2070.50    0.266   249.50
2071.50    0.265   248.82
2072.50    0.264   248.13
2073.50    0.263   247.44
2074.50    0.261   246.73
2075.50    0.259   246.02
2076.50    0.257   245.30
2077.50    0.255   244.57
2078.50    0.253   243.82
2079.50    0.251   243.06
2080.50    0.248   242.29






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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 15:41:20



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