Double Star Calculator - Orbit

Orbital Elements for MAR1AA,AD
WDS: MAR1AA,AD WDS ID/Discoverer
P: 113.970 Orbital period (years)
a: 0.685 Semi-major axis (arcseconds)
i: 38.63 Inclination (degrees)
Ω: 56.09 Longitude of ascending node (degrees)
T: 1965.270 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1968.015 Year
End-Year: 2081.985 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for MAR1AA,AD
Position: 230728.71+210803.3 Epoch-2000 right ascension and declination
WDS-ID: 23075+2108 WDS designation
Discoverer Code: MAR1AA,AD Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 218396 HD catalog number
Hipparcos number: 114189 Hipparcos catalog number
V1: 5.38k Magnitude of the primary
V2: 15.26k Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Zur2015 Reference

Double Star Orbit for MAR1AA,AD



WDS 6th Orbit including measures of MAR1AA,AD

-- 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 MAR1AA,AD
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.678   246.64
--------------------------
1968.02    0.682    62.88
1969.02    0.679    65.38
1970.02    0.676    67.90
1971.02    0.672    70.45
1972.02    0.667    73.03
1973.02    0.662    75.66
1974.02    0.656    78.32
1975.02    0.649    81.04
1976.02    0.642    83.82
1977.02    0.635    86.66
1978.02    0.627    89.58
1979.02    0.619    92.56
1980.02    0.611    95.63
1981.02    0.602    98.77
1982.02    0.594   102.01
1983.02    0.586   105.34
1984.02    0.578   108.75
1985.02    0.571   112.26
1986.02    0.564   115.86
1987.02    0.557   119.55
1988.02    0.551   123.32
1989.02    0.546   127.16
1990.02    0.542   131.07
1991.02    0.539   135.03
1992.02    0.537   139.04
1993.02    0.535   143.07
1994.02    0.535   147.11
1995.02    0.536   151.15
1996.02    0.538   155.17
1997.02    0.541   159.15
1998.02    0.544   163.09
1999.02    0.549   166.97
2000.02    0.554   170.77
2001.02    0.560   174.50
2002.02    0.567   178.15
2003.02    0.574   181.70
2004.02    0.582   185.16
2005.02    0.590   188.53
2006.02    0.598   191.81
2007.02    0.606   195.01
2008.02    0.615   198.11
2009.02    0.623   201.14
2010.02    0.631   204.08
2011.02    0.638   206.96
2012.02    0.646   209.77
2013.02    0.652   212.52
2014.02    0.659   215.21
2015.02    0.665   217.85
2016.02    0.670   220.45
2017.02    0.674   223.02
2018.02    0.678   225.55
2019.02    0.681   228.06
2020.02    0.683   230.55
2021.02    0.684   233.03
2022.02    0.685   235.50
2023.02    0.685   237.97
2024.02    0.684   240.44
2025.02    0.682   242.92
2026.02    0.679   245.42
2027.02    0.676   247.94
2028.02    0.672   250.49
2029.02    0.667   253.07
2030.02    0.662   255.70
2031.02    0.656   258.37
2032.02    0.649   261.09
2033.02    0.642   263.86
2034.02    0.634   266.71
2035.02    0.627   269.62
2036.02    0.619   272.61
2037.02    0.610   275.67
2038.02    0.602   278.82
2039.02    0.594   282.06
2040.02    0.586   285.39
2041.02    0.578   288.81
2042.02    0.571   292.32
2043.02    0.564   295.92
2044.02    0.557   299.61
2045.02    0.551   303.38
2046.02    0.546   307.22
2047.02    0.542   311.13
2048.02    0.539   315.09
2049.02    0.537   319.10
2050.02    0.535   323.13
2051.02    0.535   327.17
2052.02    0.536   331.21
2053.02    0.538   335.23
2054.02    0.541   339.21
2055.02    0.544   343.15
2056.02    0.549   347.02
2057.02    0.554   350.83
2058.02    0.561   354.56
2059.02    0.567   358.20
2060.02    0.575     1.75
2061.02    0.582     5.21
2062.02    0.590     8.58
2063.02    0.598    11.86
2064.02    0.607    15.05
2065.02    0.615    18.16
2066.02    0.623    21.18
2067.02    0.631    24.13
2068.02    0.639    27.00
2069.02    0.646    29.81
2070.02    0.653    32.56
2071.02    0.659    35.25
2072.02    0.665    37.89
2073.02    0.670    40.49
2074.02    0.674    43.06
2075.02    0.678    45.59
2076.02    0.681    48.10
2077.02    0.683    50.59
2078.02    0.684    53.07
2079.02    0.685    55.53
2080.02    0.685    58.00
2081.02    0.684    60.48






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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 18:47:31



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