Double Star Calculator - Orbit

Orbital Elements for MCA42CE

WDS:	MCA42CE	WDS ID/Discoverer
P:	18.953	Orbital period (years)
a:	0.1047	Semi-major axis (arcseconds)
i:	45.4	Inclination (degrees)
Ω:	108.0	Longitude of ascending node (degrees)
T:	2006.000	Epoch of periastron passage (year)
e:	0.61	Eccentricity
ω:	80.8	Longitude of periastron (degrees)
Start-Year:	2015.5235	Year
End-Year:	2034.4765	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA42CE
Position:	160526.55-194806.6	Epoch-2000 right ascension and declination
WDS-ID:	16054-1948	WDS designation
Discoverer Code:	MCA42CE	Discover designation and components
ADS number:	9913	Aitken Double Star catalog
HD number:	144218	HD catalog number
Hipparcos number:	78821	Hipparcos catalog number
V1:	4.52	Magnitude of the primary
V2:	6.6	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2024c	Reference

Double Star Orbit for MCA42CE

WDS 6th Orbit including measures of MCA42CE

-- 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 MCA42CE

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.072   287.53
--------------------------
2015.52    0.120     5.39
2015.62    0.120     6.20
2015.72    0.119     7.01
2015.82    0.119     7.82
2015.92    0.119     8.64
2016.02    0.119     9.46
2016.12    0.119    10.28
2016.22    0.118    11.11
2016.32    0.118    11.94
2016.42    0.118    12.77
2016.52    0.117    13.61
2016.62    0.117    14.45
2016.72    0.117    15.30
2016.82    0.117    16.15
2016.92    0.116    17.00
2017.02    0.116    17.86
2017.12    0.116    18.72
2017.22    0.115    19.59
2017.32    0.115    20.46
2017.42    0.115    21.33
2017.52    0.115    22.22
2017.62    0.114    23.10
2017.72    0.114    23.99
2017.82    0.113    24.89
2017.92    0.113    25.79
2018.02    0.113    26.70
2018.12    0.112    27.61
2018.22    0.112    28.53
2018.32    0.112    29.46
2018.42    0.111    30.39
2018.52    0.111    31.33
2018.62    0.110    32.28
2018.72    0.110    33.23
2018.82    0.110    34.19
2018.92    0.109    35.16
2019.02    0.109    36.13
2019.12    0.108    37.11
2019.22    0.108    38.10
2019.32    0.107    39.10
2019.42    0.107    40.11
2019.52    0.107    41.12
2019.62    0.106    42.15
2019.72    0.106    43.18
2019.82    0.105    44.23
2019.92    0.105    45.28
2020.02    0.104    46.35
2020.12    0.104    47.42
2020.22    0.103    48.51
2020.32    0.102    49.61
2020.42    0.102    50.72
2020.52    0.101    51.84
2020.62    0.101    52.98
2020.72    0.100    54.13
2020.82    0.099    55.30
2020.92    0.099    56.48
2021.02    0.098    57.68
2021.12    0.097    58.89
2021.22    0.097    60.13
2021.32    0.096    61.38
2021.42    0.095    62.65
2021.52    0.094    63.94
2021.62    0.093    65.26
2021.72    0.093    66.60
2021.82    0.092    67.96
2021.92    0.091    69.35
2022.02    0.090    70.77
2022.12    0.089    72.23
2022.22    0.088    73.71
2022.32    0.087    75.24
2022.42    0.086    76.80
2022.52    0.084    78.40
2022.62    0.083    80.06
2022.72    0.082    81.76
2022.82    0.080    83.53
2022.92    0.079    85.36
2023.02    0.077    87.25
2023.12    0.076    89.23
2023.22    0.074    91.30
2023.32    0.072    93.47
2023.42    0.070    95.75
2023.52    0.068    98.18
2023.62    0.066   100.75
2023.72    0.064   103.51
2023.82    0.061   106.49
2023.92    0.059   109.72
2024.02    0.056   113.28
2024.12    0.053   117.22
2024.22    0.050   121.65
2024.32    0.046   126.69
2024.42    0.043   132.50
2024.52    0.040   139.30
2024.62    0.036   147.35
2024.72    0.033   156.91
2024.82    0.031   168.16
2024.92    0.029   181.00
2025.02    0.029   194.82
2025.12    0.029   208.61
2025.22    0.031   221.36
2025.32    0.034   232.48
2025.42    0.037   241.88
2025.52    0.040   249.73
2025.62    0.044   256.31
2025.72    0.047   261.88
2025.82    0.051   266.66
2025.92    0.055   270.81
2026.02    0.058   274.47
2026.12    0.061   277.73
2026.22    0.064   280.67
2026.32    0.067   283.34
2026.42    0.070   285.78
2026.52    0.073   288.05
2026.62    0.075   290.15
2026.72    0.078   292.12
2026.82    0.080   293.97
2026.92    0.082   295.73
2027.02    0.085   297.39
2027.12    0.087   298.97
2027.22    0.088   300.48
2027.32    0.090   301.93
2027.42    0.092   303.33
2027.52    0.094   304.67
2027.62    0.095   305.97
2027.72    0.097   307.23
2027.82    0.098   308.45
2027.92    0.099   309.64
2028.02    0.101   310.79
2028.12    0.102   311.92
2028.22    0.103   313.02
2028.32    0.104   314.09
2028.42    0.105   315.15
2028.52    0.106   316.18
2028.62    0.107   317.19
2028.72    0.108   318.19
2028.82    0.109   319.17
2028.92    0.110   320.13
2029.02    0.111   321.08
2029.12    0.112   322.02
2029.22    0.112   322.94
2029.32    0.113   323.86
2029.42    0.114   324.76
2029.52    0.114   325.65
2029.62    0.115   326.53
2029.72    0.115   327.41
2029.82    0.116   328.27
2029.92    0.116   329.13
2030.02    0.117   329.98
2030.12    0.117   330.82
2030.22    0.118   331.66
2030.32    0.118   332.49
2030.42    0.119   333.32
2030.52    0.119   334.14
2030.62    0.119   334.96
2030.72    0.120   335.77
2030.82    0.120   336.58
2030.92    0.120   337.39
2031.02    0.120   338.19
2031.12    0.121   338.99
2031.22    0.121   339.78
2031.32    0.121   340.58
2031.42    0.121   341.37
2031.52    0.121   342.16
2031.62    0.121   342.94
2031.72    0.121   343.73
2031.82    0.122   344.51
2031.92    0.122   345.30
2032.02    0.122   346.08
2032.12    0.122   346.86
2032.22    0.122   347.64
2032.32    0.122   348.42
2032.42    0.122   349.20
2032.52    0.122   349.98
2032.62    0.122   350.76
2032.72    0.122   351.54
2032.82    0.122   352.32
2032.92    0.122   353.10
2033.02    0.122   353.88
2033.12    0.122   354.66
2033.22    0.122   355.45
2033.32    0.122   356.23
2033.42    0.121   357.01
2033.52    0.121   357.80
2033.62    0.121   358.59
2033.72    0.121   359.38
2033.82    0.121     0.17
2033.92    0.121     0.96
2034.02    0.121     1.76
2034.12    0.120     2.56
2034.22    0.120     3.36
2034.32    0.120     4.16
2034.42    0.120     4.96

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 17:22:29