Double Star Calculator - Orbit

Orbital Elements for BEU3

WDS:	BEU3	WDS ID/Discoverer
P:	13.328	Orbital period (years)
a:	0.4955	Semi-major axis (arcseconds)
i:	91.771	Inclination (degrees)
Ω:	102.987	Longitude of ascending node (degrees)
T:	2027.405	Epoch of periastron passage (year)
e:	0.3771	Eccentricity
ω:	245.62	Longitude of periastron (degrees)
Start-Year:	2018.336	Year
End-Year:	2031.664	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BEU3
Position:	020504.84-173652.6	Epoch-2000 right ascension and declination
WDS-ID:	02051-1737	WDS designation
Discoverer Code:	BEU3	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	9724	Hipparcos catalog number
V1:	5.57	Magnitude of the primary
V2:	9.39	Magnitude of the secondary
Equinox:		Equinox
Date:	2017	Date of last observation
Orbit grade:	4	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 BEU3

WDS 6th Orbit including measures of BEU3

-- 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 BEU3

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.340   282.61
--------------------------
2018.34    0.526   101.89
2018.44    0.521   101.82
2018.54    0.516   101.75
2018.64    0.510   101.68
2018.74    0.503   101.61
2018.84    0.496   101.53
2018.94    0.489   101.45
2019.04    0.481   101.37
2019.14    0.472   101.29
2019.24    0.463   101.20
2019.34    0.454   101.11
2019.44    0.444   101.02
2019.54    0.433   100.92
2019.64    0.423   100.81
2019.74    0.412   100.70
2019.84    0.400   100.59
2019.94    0.388   100.47
2020.04    0.376   100.34
2020.14    0.364   100.20
2020.24    0.351   100.05
2020.34    0.338    99.89
2020.44    0.325    99.72
2020.54    0.311    99.53
2020.64    0.297    99.32
2020.74    0.283    99.10
2020.84    0.269    98.85
2020.94    0.254    98.57
2021.04    0.239    98.26
2021.14    0.224    97.90
2021.24    0.209    97.50
2021.34    0.194    97.03
2021.44    0.178    96.48
2021.54    0.163    95.83
2021.64    0.147    95.03
2021.74    0.131    94.05
2021.84    0.115    92.79
2021.94    0.099    91.12
2022.04    0.083    88.83
2022.14    0.067    85.44
2022.24    0.052    80.02
2022.34    0.037    70.17
2022.44    0.025    49.32
2022.54    0.020     7.94
2022.64    0.027   330.30
2022.74    0.040   312.47
2022.84    0.055   303.81
2022.94    0.071   298.91
2023.04    0.086   295.79
2023.14    0.102   293.63
2023.24    0.118   292.06
2023.34    0.134   290.86
2023.44    0.150   289.91
2023.54    0.165   289.15
2023.64    0.181   288.51
2023.74    0.196   287.97
2023.84    0.211   287.51
2023.94    0.225   287.11
2024.04    0.239   286.76
2024.14    0.253   286.45
2024.24    0.267   286.17
2024.34    0.280   285.91
2024.44    0.293   285.68
2024.54    0.305   285.47
2024.64    0.316   285.27
2024.74    0.327   285.09
2024.84    0.337   284.92
2024.94    0.347   284.75
2025.04    0.356   284.60
2025.14    0.364   284.45
2025.24    0.370   284.31
2025.34    0.376   284.18
2025.44    0.381   284.04
2025.54    0.385   283.91
2025.64    0.387   283.79
2025.74    0.388   283.66
2025.84    0.388   283.53
2025.94    0.386   283.41
2026.04    0.382   283.28
2026.14    0.377   283.15
2026.24    0.369   283.01
2026.34    0.360   282.87
2026.44    0.349   282.72
2026.54    0.335   282.55
2026.64    0.319   282.38
2026.74    0.301   282.18
2026.84    0.281   281.96
2026.94    0.259   281.70
2027.04    0.234   281.38
2027.14    0.208   280.99
2027.24    0.179   280.48
2027.34    0.149   279.77
2027.44    0.118   278.70
2027.54    0.086   276.82
2027.64    0.053   272.61
2027.74    0.021   254.81
2027.84    0.019   134.93
2027.94    0.050   114.26
2028.04    0.083   109.75
2028.14    0.116   107.79
2028.24    0.148   106.69
2028.34    0.179   105.97
2028.44    0.208   105.46
2028.54    0.237   105.07
2028.64    0.264   104.77
2028.74    0.290   104.52
2028.84    0.314   104.32
2028.94    0.337   104.14
2029.04    0.359   103.98
2029.14    0.379   103.84
2029.24    0.398   103.72
2029.34    0.416   103.60
2029.44    0.432   103.50
2029.54    0.447   103.40
2029.64    0.461   103.31
2029.74    0.473   103.22
2029.84    0.485   103.14
2029.94    0.495   103.06
2030.04    0.504   102.98
2030.14    0.512   102.91
2030.24    0.519   102.84
2030.34    0.525   102.77
2030.44    0.530   102.70
2030.54    0.534   102.63
2030.64    0.538   102.57
2030.74    0.540   102.50
2030.84    0.542   102.43
2030.94    0.542   102.37
2031.04    0.542   102.31
2031.14    0.542   102.24
2031.24    0.540   102.18
2031.34    0.538   102.11
2031.44    0.535   102.05
2031.54    0.532   101.98
2031.64    0.528   101.91

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 14:56:48