Double Star Calculator - Orbit

Orbital Elements for MCA19AA,AB

WDS:	MCA19AA,AB	WDS ID/Discoverer
P:	15.914	Orbital period (years)
a:	0.0757	Semi-major axis (arcseconds)
i:	109.4	Inclination (degrees)
Ω:	251.9	Longitude of ascending node (degrees)
T:	2014.600	Epoch of periastron passage (year)
e:	0.806	Eccentricity
ω:	317.1	Longitude of periastron (degrees)
Start-Year:	2017.043	Year
End-Year:	2032.957	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA19AA,AB
Position:	052710.09+175744.0	Epoch-2000 right ascension and declination
WDS-ID:	05272+1758	WDS designation
Discoverer Code:	MCA19AA,AB	Discover designation and components
ADS number:	4038	Aitken Double Star catalog
HD number:	35671	HD catalog number
Hipparcos number:	25499	Hipparcos catalog number
V1:	5.8	Magnitude of the primary
V2:	6.8	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:	Tok2020e	Reference

Double Star Orbit for MCA19AA,AB

WDS 6th Orbit including measures of MCA19AA,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 MCA19AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.104    80.52
--------------------------
2017.04    0.037   119.84
2017.14    0.039   118.09
2017.24    0.041   116.49
2017.34    0.043   115.02
2017.44    0.044   113.67
2017.54    0.046   112.42
2017.64    0.048   111.26
2017.74    0.049   110.18
2017.84    0.051   109.17
2017.94    0.053   108.22
2018.04    0.054   107.33
2018.14    0.056   106.50
2018.24    0.058   105.71
2018.34    0.059   104.96
2018.44    0.061   104.25
2018.54    0.062   103.58
2018.64    0.064   102.94
2018.74    0.065   102.33
2018.84    0.067   101.74
2018.94    0.068   101.19
2019.04    0.070   100.65
2019.14    0.071   100.14
2019.24    0.072    99.64
2019.34    0.074    99.16
2019.44    0.075    98.70
2019.54    0.076    98.26
2019.64    0.078    97.83
2019.74    0.079    97.42
2019.84    0.080    97.02
2019.94    0.081    96.63
2020.04    0.083    96.25
2020.14    0.084    95.88
2020.24    0.085    95.52
2020.34    0.086    95.18
2020.44    0.087    94.84
2020.54    0.088    94.51
2020.64    0.089    94.18
2020.74    0.090    93.87
2020.84    0.091    93.56
2020.94    0.092    93.26
2021.04    0.093    92.96
2021.14    0.094    92.67
2021.24    0.095    92.39
2021.34    0.096    92.11
2021.44    0.097    91.83
2021.54    0.098    91.57
2021.64    0.099    91.30
2021.74    0.099    91.04
2021.84    0.100    90.78
2021.94    0.101    90.53
2022.04    0.102    90.28
2022.14    0.102    90.04
2022.24    0.103    89.80
2022.34    0.104    89.56
2022.44    0.104    89.32
2022.54    0.105    89.09
2022.64    0.105    88.85
2022.74    0.106    88.63
2022.84    0.106    88.40
2022.94    0.107    88.18
2023.04    0.107    87.95
2023.14    0.108    87.73
2023.24    0.108    87.51
2023.34    0.108    87.30
2023.44    0.109    87.08
2023.54    0.109    86.86
2023.64    0.109    86.65
2023.74    0.110    86.44
2023.84    0.110    86.23
2023.94    0.110    86.02
2024.04    0.110    85.81
2024.14    0.110    85.60
2024.24    0.110    85.39
2024.34    0.111    85.18
2024.44    0.111    84.97
2024.54    0.111    84.76
2024.64    0.111    84.55
2024.74    0.111    84.35
2024.84    0.110    84.14
2024.94    0.110    83.93
2025.04    0.110    83.72
2025.14    0.110    83.51
2025.24    0.110    83.30
2025.34    0.110    83.09
2025.44    0.109    82.87
2025.54    0.109    82.66
2025.64    0.109    82.44
2025.74    0.108    82.23
2025.84    0.108    82.01
2025.94    0.107    81.79
2026.04    0.107    81.57
2026.14    0.106    81.34
2026.24    0.106    81.11
2026.34    0.105    80.88
2026.44    0.104    80.65
2026.54    0.103    80.41
2026.64    0.103    80.17
2026.74    0.102    79.93
2026.84    0.101    79.68
2026.94    0.100    79.43
2027.04    0.099    79.17
2027.14    0.098    78.91
2027.24    0.097    78.64
2027.34    0.096    78.37
2027.44    0.094    78.08
2027.54    0.093    77.80
2027.64    0.092    77.50
2027.74    0.090    77.19
2027.84    0.089    76.87
2027.94    0.087    76.54
2028.04    0.086    76.20
2028.14    0.084    75.85
2028.24    0.082    75.48
2028.34    0.080    75.09
2028.44    0.078    74.68
2028.54    0.076    74.25
2028.64    0.074    73.80
2028.74    0.071    73.32
2028.84    0.069    72.80
2028.94    0.066    72.24
2029.04    0.064    71.64
2029.14    0.061    70.98
2029.24    0.058    70.25
2029.34    0.054    69.43
2029.44    0.051    68.51
2029.54    0.047    67.44
2029.64    0.043    66.18
2029.74    0.039    64.66
2029.84    0.034    62.73
2029.94    0.029    60.16
2030.04    0.024    56.45
2030.14    0.018    50.35
2030.24    0.011    37.71
2030.34    0.006   359.39
2030.44    0.008   290.58
2030.54    0.013   263.91
2030.64    0.017   252.14
2030.74    0.019   243.98
2030.84    0.019   236.87
2030.94    0.019   229.93
2031.04    0.019   222.82
2031.14    0.018   215.34
2031.24    0.018   207.47
2031.34    0.018   199.28
2031.44    0.017   190.93
2031.54    0.018   182.64
2031.64    0.018   174.66
2031.74    0.019   167.17
2031.84    0.020   160.31
2031.94    0.021   154.13
2032.04    0.022   148.62
2032.14    0.024   143.75
2032.24    0.025   139.44
2032.34    0.027   135.64
2032.44    0.028   132.27
2032.54    0.030   129.28
2032.64    0.032   126.61
2032.74    0.034   124.21
2032.84    0.035   122.05
2032.94    0.037   120.10

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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 15:37:14