Double Star Calculator - Orbit

Orbital Elements for BEU16AB

WDS:	BEU16AB	WDS ID/Discoverer
P:	13.709	Orbital period (years)
a:	0.42773	Semi-major axis (arcseconds)
i:	130.79	Inclination (degrees)
Ω:	56.13	Longitude of ascending node (degrees)
T:	2021.412	Epoch of periastron passage (year)
e:	0.2436	Eccentricity
ω:	158.81	Longitude of periastron (degrees)
Start-Year:	2018.1455	Year
End-Year:	2031.8545	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BEU16AB
Position:	130046.58+122232.6	Epoch-2000 right ascension and declination
WDS-ID:	13008+1223	WDS designation
Discoverer Code:	BEU16AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	63510	Hipparcos catalog number
V1:	9.75	Magnitude of the primary
V2:	.	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:	MnA2019	Reference

Double Star Orbit for BEU16AB

WDS 6th Orbit including measures of BEU16AB

-- 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 BEU16AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.412    95.13
--------------------------
2018.15    0.374    22.38
2018.25    0.364    20.15
2018.35    0.354    17.78
2018.45    0.344    15.28
2018.55    0.333    12.62
2018.65    0.323     9.79
2018.75    0.313     6.78
2018.85    0.303     3.57
2018.95    0.293     0.14
2019.05    0.284   356.49
2019.15    0.276   352.60
2019.25    0.267   348.47
2019.35    0.260   344.09
2019.45    0.254   339.48
2019.55    0.248   334.64
2019.65    0.244   329.61
2019.75    0.241   324.42
2019.85    0.239   319.11
2019.95    0.238   313.75
2020.05    0.238   308.38
2020.15    0.240   303.07
2020.25    0.243   297.85
2020.35    0.247   292.77
2020.45    0.252   287.87
2020.55    0.257   283.17
2020.65    0.263   278.67
2020.75    0.270   274.38
2020.85    0.276   270.29
2020.95    0.283   266.39
2021.05    0.290   262.68
2021.15    0.296   259.13
2021.25    0.302   255.72
2021.35    0.308   252.45
2021.45    0.313   249.29
2021.55    0.317   246.22
2021.65    0.321   243.24
2021.75    0.324   240.32
2021.85    0.327   237.45
2021.95    0.329   234.62
2022.05    0.330   231.81
2022.15    0.330   229.02
2022.25    0.330   226.22
2022.35    0.329   223.41
2022.45    0.327   220.58
2022.55    0.325   217.72
2022.65    0.322   214.82
2022.75    0.320   211.86
2022.85    0.316   208.85
2022.95    0.313   205.77
2023.05    0.309   202.62
2023.15    0.305   199.40
2023.25    0.301   196.09
2023.35    0.298   192.70
2023.45    0.294   189.22
2023.55    0.291   185.67
2023.65    0.288   182.05
2023.75    0.286   178.35
2023.85    0.284   174.60
2023.95    0.282   170.80
2024.05    0.282   166.97
2024.15    0.281   163.13
2024.25    0.282   159.28
2024.35    0.283   155.46
2024.45    0.284   151.67
2024.55    0.287   147.94
2024.65    0.290   144.28
2024.75    0.293   140.70
2024.85    0.298   137.21
2024.95    0.302   133.83
2025.05    0.308   130.56
2025.15    0.313   127.40
2025.25    0.319   124.35
2025.35    0.326   121.43
2025.45    0.333   118.62
2025.55    0.340   115.93
2025.65    0.347   113.34
2025.75    0.354   110.86
2025.85    0.362   108.49
2025.95    0.370   106.21
2026.05    0.377   104.03
2026.15    0.385   101.93
2026.25    0.393    99.92
2026.35    0.400    97.98
2026.45    0.408    96.12
2026.55    0.415    94.32
2026.65    0.423    92.59
2026.75    0.430    90.92
2026.85    0.437    89.30
2026.95    0.444    87.73
2027.05    0.451    86.21
2027.15    0.457    84.74
2027.25    0.464    83.30
2027.35    0.470    81.90
2027.45    0.475    80.54
2027.55    0.481    79.21
2027.65    0.486    77.91
2027.75    0.491    76.63
2027.85    0.496    75.38
2027.95    0.500    74.15
2028.05    0.504    72.95
2028.15    0.508    71.76
2028.25    0.511    70.58
2028.35    0.514    69.42
2028.45    0.517    68.28
2028.55    0.519    67.14
2028.65    0.521    66.02
2028.75    0.522    64.90
2028.85    0.523    63.78
2028.95    0.524    62.67
2029.05    0.524    61.57
2029.15    0.524    60.46
2029.25    0.524    59.35
2029.35    0.523    58.24
2029.45    0.522    57.13
2029.55    0.520    56.01
2029.65    0.518    54.88
2029.75    0.516    53.74
2029.85    0.513    52.59
2029.95    0.510    51.43
2030.05    0.506    50.25
2030.15    0.502    49.05
2030.25    0.498    47.83
2030.35    0.493    46.59
2030.45    0.487    45.32
2030.55    0.482    44.03
2030.65    0.476    42.70
2030.75    0.469    41.33
2030.85    0.462    39.93
2030.95    0.455    38.48
2031.05    0.447    36.99
2031.15    0.439    35.44
2031.25    0.431    33.83
2031.35    0.422    32.16
2031.45    0.413    30.42
2031.55    0.404    28.60
2031.65    0.395    26.69
2031.75    0.385    24.68
2031.85    0.375    22.58

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 16:51:57