Double Star Calculator - Orbit

Orbital Elements for A1535
WDS: A1535 WDS ID/Discoverer
P: 145.050 Orbital period (years)
a: 0.531 Semi-major axis (arcseconds)
i: 48.1 Inclination (degrees)
Ω: 156.8 Longitude of ascending node (degrees)
T: 1940.320 Epoch of periastron passage (year)
e: 0.372 Eccentricity
ω: 8.5 Longitude of periastron (degrees)
Start-Year: 1952.475 Year
End-Year: 2097.525 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for A1535
Position: 033609.47+422021.9 Epoch-2000 right ascension and declination
WDS-ID: 03362+4220 WDS designation
Discoverer Code: A1535 Discover designation and components
ADS number: 2630 Aitken Double Star catalog
HD number: 22193 HD catalog number
Hipparcos number: 16793 Hipparcos catalog number
V1: 8.84 Magnitude of the primary
V2: 9.54 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2003 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: Hrt2008 Reference

Double Star Orbit for A1535



WDS 6th Orbit including measures of A1535

-- 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 A1535
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.673   354.47
--------------------------
1952.47    0.277   220.67
1953.47    0.277   226.32
1954.47    0.278   231.96
1955.47    0.281   237.50
1956.47    0.285   242.91
1957.47    0.291   248.13
1958.47    0.298   253.13
1959.47    0.307   257.88
1960.47    0.316   262.36
1961.47    0.326   266.56
1962.47    0.337   270.51
1963.47    0.349   274.19
1964.47    0.361   277.63
1965.47    0.374   280.84
1966.47    0.387   283.84
1967.47    0.400   286.65
1968.47    0.413   289.27
1969.47    0.427   291.73
1970.47    0.440   294.04
1971.47    0.453   296.21
1972.47    0.466   298.27
1973.47    0.479   300.21
1974.47    0.492   302.04
1975.47    0.505   303.79
1976.47    0.517   305.45
1977.47    0.529   307.04
1978.47    0.541   308.55
1979.47    0.553   310.00
1980.47    0.564   311.39
1981.47    0.575   312.73
1982.47    0.585   314.02
1983.47    0.595   315.27
1984.47    0.605   316.47
1985.47    0.615   317.64
1986.47    0.624   318.77
1987.47    0.632   319.87
1988.47    0.641   320.94
1989.47    0.649   321.98
1990.47    0.656   323.00
1991.47    0.664   323.99
1992.47    0.670   324.97
1993.47    0.677   325.93
1994.47    0.683   326.87
1995.47    0.688   327.79
1996.47    0.694   328.70
1997.47    0.698   329.59
1998.47    0.703   330.48
1999.47    0.707   331.35
2000.47    0.711   332.21
2001.47    0.714   333.07
2002.47    0.717   333.91
2003.47    0.719   334.76
2004.47    0.721   335.59
2005.47    0.723   336.42
2006.47    0.725   337.25
2007.47    0.725   338.08
2008.47    0.726   338.90
2009.47    0.726   339.72
2010.47    0.726   340.55
2011.47    0.725   341.37
2012.47    0.725   342.19
2013.47    0.723   343.02
2014.47    0.722   343.85
2015.47    0.719   344.69
2016.47    0.717   345.53
2017.47    0.714   346.38
2018.47    0.711   347.23
2019.47    0.708   348.09
2020.47    0.704   348.96
2021.47    0.699   349.84
2022.47    0.695   350.74
2023.47    0.690   351.64
2024.47    0.685   352.56
2025.47    0.679   353.49
2026.47    0.673   354.44
2027.47    0.667   355.41
2028.47    0.660   356.40
2029.47    0.653   357.40
2030.47    0.646   358.43
2031.47    0.638   359.49
2032.47    0.630     0.57
2033.47    0.622     1.68
2034.47    0.613     2.81
2035.47    0.604     3.98
2036.47    0.595     5.19
2037.47    0.586     6.44
2038.47    0.576     7.72
2039.47    0.566     9.05
2040.47    0.556    10.43
2041.47    0.545    11.86
2042.47    0.535    13.35
2043.47    0.524    14.90
2044.47    0.513    16.51
2045.47    0.502    18.20
2046.47    0.490    19.96
2047.47    0.479    21.81
2048.47    0.468    23.75
2049.47    0.456    25.78
2050.47    0.445    27.92
2051.47    0.433    30.17
2052.47    0.422    32.54
2053.47    0.411    35.05
2054.47    0.400    37.69
2055.47    0.389    40.48
2056.47    0.378    43.43
2057.47    0.368    46.54
2058.47    0.359    49.83
2059.47    0.350    53.29
2060.47    0.341    56.93
2061.47    0.333    60.74
2062.47    0.327    64.73
2063.47    0.320    68.88
2064.47    0.315    73.17
2065.47    0.311    77.60
2066.47    0.308    82.13
2067.47    0.306    86.74
2068.47    0.305    91.40
2069.47    0.304    96.08
2070.47    0.305   100.75
2071.47    0.307   105.39
2072.47    0.309   109.96
2073.47    0.312   114.47
2074.47    0.315   118.88
2075.47    0.319   123.20
2076.47    0.322   127.43
2077.47    0.326   131.56
2078.47    0.329   135.61
2079.47    0.332   139.59
2080.47    0.334   143.51
2081.47    0.335   147.39
2082.47    0.335   151.25
2083.47    0.335   155.11
2084.47    0.334   158.99
2085.47    0.331   162.91
2086.47    0.328   166.91
2087.47    0.324   171.00
2088.47    0.319   175.20
2089.47    0.313   179.54
2090.47    0.308   184.04
2091.47    0.302   188.71
2092.47    0.296   193.57
2093.47    0.290   198.62
2094.47    0.286   203.85
2095.47    0.282   209.25
2096.47    0.279   214.77
2097.47    0.277   220.39



 

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 15:12:37


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