Double Star Calculator - Orbit

Orbital Elements for MCY3AA,AB

WDS:	MCY3AA,AB	WDS ID/Discoverer
P:	16.894	Orbital period (years)
a:	0.83023	Semi-major axis (arcseconds)
i:	135.47	Inclination (degrees)
Ω:	80.37	Longitude of ascending node (degrees)
T:	2016.842	Epoch of periastron passage (year)
e:	0.34114	Eccentricity
ω:	216.71	Longitude of periastron (degrees)
Start-Year:	2016.55285	Year
End-Year:	2033.44715	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCY3AA,AB
Position:	195354.48+442453.3	Epoch-2000 right ascension and declination
WDS-ID:	19539+4425	WDS designation
Discoverer Code:	MCY3AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	13.5	Magnitude of the primary
V2:	16.8	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:	MnA2019	Reference

Double Star Orbit for MCY3AA,AB

WDS 6th Orbit including measures of MCY3AA,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 MCY3AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.924    39.69
--------------------------
2016.55    0.529   243.21
2016.65    0.518   239.62
2016.75    0.507   235.87
2016.85    0.495   231.95
2016.95    0.484   227.84
2017.05    0.473   223.54
2017.15    0.462   219.04
2017.25    0.453   214.33
2017.35    0.444   209.43
2017.45    0.437   204.35
2017.55    0.431   199.11
2017.65    0.427   193.76
2017.75    0.425   188.33
2017.85    0.425   182.88
2017.95    0.428   177.46
2018.05    0.432   172.14
2018.15    0.439   166.95
2018.25    0.448   161.94
2018.35    0.458   157.14
2018.45    0.471   152.57
2018.55    0.484   148.25
2018.65    0.499   144.18
2018.75    0.515   140.35
2018.85    0.532   136.75
2018.95    0.549   133.38
2019.05    0.567   130.22
2019.15    0.585   127.26
2019.25    0.604   124.48
2019.35    0.623   121.86
2019.45    0.641   119.39
2019.55    0.660   117.07
2019.65    0.678   114.87
2019.75    0.697   112.79
2019.85    0.715   110.81
2019.95    0.732   108.93
2020.05    0.750   107.14
2020.15    0.767   105.43
2020.25    0.783   103.79
2020.35    0.800   102.22
2020.45    0.815   100.71
2020.55    0.831    99.25
2020.65    0.845    97.85
2020.75    0.860    96.50
2020.85    0.873    95.19
2020.95    0.887    93.92
2021.05    0.900    92.68
2021.15    0.912    91.48
2021.25    0.924    90.31
2021.35    0.935    89.17
2021.45    0.946    88.06
2021.55    0.956    86.97
2021.65    0.965    85.90
2021.75    0.975    84.86
2021.85    0.983    83.83
2021.95    0.992    82.82
2022.05    0.999    81.83
2022.15    1.006    80.85
2022.25    1.013    79.88
2022.35    1.019    78.93
2022.45    1.025    77.99
2022.55    1.030    77.06
2022.65    1.035    76.13
2022.75    1.039    75.22
2022.85    1.043    74.31
2022.95    1.047    73.41
2023.05    1.050    72.51
2023.15    1.052    71.62
2023.25    1.054    70.74
2023.35    1.056    69.85
2023.45    1.057    68.97
2023.55    1.058    68.09
2023.65    1.058    67.21
2023.75    1.058    66.33
2023.85    1.058    65.45
2023.95    1.057    64.57
2024.05    1.056    63.69
2024.15    1.054    62.80
2024.25    1.052    61.91
2024.35    1.050    61.02
2024.45    1.047    60.13
2024.55    1.044    59.23
2024.65    1.040    58.32
2024.75    1.037    57.41
2024.85    1.033    56.49
2024.95    1.028    55.56
2025.05    1.023    54.63
2025.15    1.018    53.68
2025.25    1.013    52.73
2025.35    1.007    51.76
2025.45    1.001    50.79
2025.55    0.995    49.80
2025.65    0.989    48.80
2025.75    0.982    47.78
2025.85    0.975    46.76
2025.95    0.968    45.71
2026.05    0.960    44.65
2026.15    0.952    43.58
2026.25    0.944    42.48
2026.35    0.936    41.37
2026.45    0.928    40.24
2026.55    0.919    39.08
2026.65    0.911    37.91
2026.75    0.902    36.71
2026.85    0.893    35.49
2026.95    0.884    34.24
2027.05    0.874    32.96
2027.15    0.865    31.66
2027.25    0.856    30.33
2027.35    0.846    28.97
2027.45    0.836    27.58
2027.55    0.827    26.16
2027.65    0.817    24.70
2027.75    0.807    23.21
2027.85    0.798    21.68
2027.95    0.788    20.11
2028.05    0.778    18.51
2028.15    0.769    16.86
2028.25    0.759    15.18
2028.35    0.750    13.45
2028.45    0.741    11.68
2028.55    0.731     9.86
2028.65    0.723     8.00
2028.75    0.714     6.09
2028.85    0.705     4.13
2028.95    0.697     2.13
2029.05    0.689     0.08
2029.15    0.681   357.98
2029.25    0.674   355.84
2029.35    0.667   353.65
2029.45    0.660   351.41
2029.55    0.654   349.13
2029.65    0.648   346.80
2029.75    0.642   344.43
2029.85    0.637   342.02
2029.95    0.632   339.58
2030.05    0.628   337.10
2030.15    0.624   334.58
2030.25    0.620   332.04
2030.35    0.617   329.47
2030.45    0.615   326.87
2030.55    0.612   324.26
2030.65    0.611   321.63
2030.75    0.609   318.98
2030.85    0.608   316.32
2030.95    0.607   313.66
2031.05    0.607   310.99
2031.15    0.607   308.32
2031.25    0.607   305.64
2031.35    0.607   302.97
2031.45    0.607   300.30
2031.55    0.607   297.62
2031.65    0.607   294.95
2031.75    0.607   292.29
2031.85    0.607   289.62
2031.95    0.607   286.94
2032.05    0.606   284.27
2032.15    0.605   281.58
2032.25    0.603   278.88
2032.35    0.601   276.17
2032.45    0.598   273.43
2032.55    0.595   270.67
2032.65    0.591   267.87
2032.75    0.586   265.02
2032.85    0.580   262.13
2032.95    0.573   259.17
2033.05    0.566   256.13
2033.15    0.558   253.01
2033.25    0.548   249.80
2033.35    0.539   246.47

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 18:09:45