Double Star Calculator - Orbit

Orbital Elements for A122
WDS: A122 WDS ID/Discoverer
P: 102.971 Orbital period (years)
a: 0.335 Semi-major axis (arcseconds)
i: 114.2 Inclination (degrees)
Ω: 41.7 Longitude of ascending node (degrees)
T: 1976.841 Epoch of periastron passage (year)
e: 0.6512 Eccentricity
ω: 228.8 Longitude of periastron (degrees)
Start-Year: 1973.5145 Year
End-Year: 2076.4855 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A122
Position: 064527.02+292159.8 Epoch-2000 right ascension and declination
WDS-ID: 06455+2922 WDS designation
Discoverer Code: A122 Discover designation and components
ADS number: 5408 Aitken Double Star catalog
HD number: 48591 HD catalog number
Hipparcos number: 32378 Hipparcos catalog number
V1: 8.89 Magnitude of the primary
V2: 9.39 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2024 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: Sca2024a Reference

Double Star Orbit for A122



WDS 6th Orbit including measures of A122

-- 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 A122
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.412    17.95
--------------------------
1973.51    0.144   227.03
1974.51    0.133   220.71
1975.51    0.116   212.86
1976.51    0.093   201.64
1977.51    0.069   182.44
1978.51    0.053   147.15
1979.51    0.061   106.70
1980.51    0.086    83.01
1981.51    0.115    70.67
1982.51    0.144    63.35
1983.51    0.172    58.44
1984.51    0.198    54.86
1985.51    0.222    52.08
1986.51    0.243    49.82
1987.51    0.264    47.92
1988.51    0.282    46.28
1989.51    0.299    44.84
1990.51    0.315    43.55
1991.51    0.330    42.37
1992.51    0.343    41.29
1993.51    0.355    40.29
1994.51    0.366    39.35
1995.51    0.377    38.47
1996.51    0.386    37.63
1997.51    0.395    36.83
1998.51    0.403    36.06
1999.51    0.410    35.32
2000.51    0.416    34.61
2001.51    0.422    33.91
2002.51    0.427    33.23
2003.51    0.431    32.57
2004.51    0.435    31.92
2005.51    0.439    31.28
2006.51    0.441    30.65
2007.51    0.444    30.03
2008.51    0.446    29.41
2009.51    0.447    28.80
2010.51    0.448    28.19
2011.51    0.448    27.58
2012.51    0.448    26.97
2013.51    0.448    26.37
2014.51    0.447    25.76
2015.51    0.446    25.15
2016.51    0.445    24.53
2017.51    0.443    23.91
2018.51    0.441    23.29
2019.51    0.438    22.65
2020.51    0.435    22.01
2021.51    0.432    21.37
2022.51    0.429    20.71
2023.51    0.425    20.04
2024.51    0.421    19.35
2025.51    0.416    18.66
2026.51    0.412    17.94
2027.51    0.407    17.21
2028.51    0.401    16.47
2029.51    0.396    15.70
2030.51    0.390    14.91
2031.51    0.384    14.09
2032.51    0.378    13.25
2033.51    0.371    12.38
2034.51    0.365    11.48
2035.51    0.358    10.54
2036.51    0.351     9.57
2037.51    0.343     8.56
2038.51    0.336     7.50
2039.51    0.328     6.39
2040.51    0.320     5.23
2041.51    0.312     4.00
2042.51    0.304     2.72
2043.51    0.296     1.36
2044.51    0.287   359.92
2045.51    0.279   358.39
2046.51    0.270   356.77
2047.51    0.261   355.04
2048.51    0.252   353.19
2049.51    0.244   351.21
2050.51    0.235   349.07
2051.51    0.226   346.78
2052.51    0.218   344.30
2053.51    0.209   341.62
2054.51    0.201   338.71
2055.51    0.193   335.56
2056.51    0.185   332.13
2057.51    0.178   328.42
2058.51    0.171   324.40
2059.51    0.164   320.05
2060.51    0.159   315.37
2061.51    0.154   310.37
2062.51    0.150   305.07
2063.51    0.147   299.51
2064.51    0.144   293.73
2065.51    0.143   287.82
2066.51    0.143   281.85
2067.51    0.143   275.89
2068.51    0.145   270.01
2069.51    0.147   264.27
2070.51    0.149   258.69
2071.51    0.151   253.28
2072.51    0.153   248.02
2073.51    0.154   242.86
2074.51    0.154   237.72
2075.51    0.151   232.46






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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 15:50:20



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