Double Star Calculator - Orbit

Orbital Elements for MCA63AA,AB
WDS: MCA63AA,AB WDS ID/Discoverer
P: 11.630 Orbital period (years)
a: 0.048 Semi-major axis (arcseconds)
i: 135.0 Inclination (degrees)
Ω: 150.0 Longitude of ascending node (degrees)
T: 1982.190 Epoch of periastron passage (year)
e: 0.524 Eccentricity
ω: 272.0 Longitude of periastron (degrees)
Start-Year: 2019.185 Year
End-Year: 2030.815 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for MCA63AA,AB
Position: 204724.53+362926.7 Epoch-2000 right ascension and declination
WDS-ID: 20474+3629 WDS designation
Discoverer Code: MCA63AA,AB Discover designation and components
ADS number: 14296 Aitken Double Star catalog
HD number: 198183 HD catalog number
Hipparcos number: 102589 Hipparcos catalog number
V1: 5.4 Magnitude of the primary
V2: 5.8 Magnitude of the secondary
Equinox: Equinox
Date: 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: Bag1992 Reference

Double Star Orbit for MCA63AA,AB



WDS 6th Orbit including measures of MCA63AA,AB

-- 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 MCA63AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.047   357.43
--------------------------
2019.18    0.045   121.24
2019.28    0.046   119.17
2019.38    0.046   117.15
2019.48    0.047   115.17
2019.58    0.047   113.23
2019.68    0.048   111.32
2019.78    0.048   109.44
2019.88    0.048   107.59
2019.98    0.049   105.77
2020.08    0.049   103.96
2020.18    0.049   102.18
2020.28    0.049   100.41
2020.38    0.050    98.66
2020.48    0.050    96.92
2020.58    0.050    95.19
2020.68    0.050    93.48
2020.78    0.050    91.78
2020.88    0.050    90.08
2020.98    0.051    88.40
2021.08    0.051    86.72
2021.18    0.051    85.05
2021.28    0.051    83.38
2021.38    0.051    81.72
2021.48    0.051    80.07
2021.58    0.051    78.42
2021.68    0.051    76.78
2021.78    0.051    75.14
2021.88    0.051    73.50
2021.98    0.051    71.87
2022.08    0.051    70.24
2022.18    0.051    68.62
2022.28    0.052    67.00
2022.38    0.052    65.38
2022.48    0.052    63.77
2022.58    0.052    62.15
2022.68    0.052    60.54
2022.78    0.052    58.94
2022.88    0.052    57.33
2022.98    0.052    55.73
2023.08    0.052    54.13
2023.18    0.052    52.53
2023.28    0.052    50.93
2023.38    0.052    49.34
2023.48    0.052    47.75
2023.58    0.052    46.15
2023.68    0.052    44.56
2023.78    0.052    42.97
2023.88    0.052    41.38
2023.98    0.052    39.79
2024.08    0.052    38.20
2024.18    0.052    36.61
2024.28    0.052    35.02
2024.38    0.052    33.42
2024.48    0.052    31.82
2024.58    0.052    30.23
2024.68    0.052    28.62
2024.78    0.052    27.02
2024.88    0.052    25.40
2024.98    0.051    23.78
2025.08    0.051    22.16
2025.18    0.051    20.53
2025.28    0.051    18.88
2025.38    0.051    17.23
2025.48    0.051    15.56
2025.58    0.050    13.88
2025.68    0.050    12.19
2025.78    0.050    10.47
2025.88    0.050     8.74
2025.98    0.049     6.98
2026.08    0.049     5.20
2026.18    0.048     3.38
2026.28    0.048     1.54
2026.38    0.047   359.65
2026.48    0.047   357.73
2026.58    0.046   355.75
2026.68    0.046   353.72
2026.78    0.045   351.62
2026.88    0.044   349.45
2026.98    0.043   347.19
2027.08    0.042   344.83
2027.18    0.041   342.36
2027.28    0.040   339.75
2027.38    0.039   336.98
2027.48    0.037   334.01
2027.58    0.036   330.80
2027.68    0.034   327.30
2027.78    0.032   323.44
2027.88    0.031   319.11
2027.98    0.029   314.19
2028.08    0.026   308.48
2028.18    0.024   301.75
2028.28    0.022   293.64
2028.38    0.020   283.76
2028.48    0.018   271.69
2028.58    0.017   257.33
2028.68    0.016   241.28
2028.78    0.016   225.03
2028.88    0.018   210.16
2028.98    0.019   197.51
2029.08    0.021   187.10
2029.18    0.024   178.56
2029.28    0.026   171.47
2029.38    0.028   165.48
2029.48    0.030   160.32
2029.58    0.032   155.79
2029.68    0.033   151.74
2029.78    0.035   148.08
2029.88    0.036   144.72
2029.98    0.038   141.61
2030.08    0.039   138.70
2030.18    0.040   135.96
2030.28    0.041   133.36
2030.38    0.042   130.89
2030.48    0.043   128.51
2030.58    0.044   126.23
2030.68    0.044   124.02
2030.78    0.045   121.87






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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 18:18:58



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