Double Star Calculator - Orbit

Orbital Elements for BYV1

WDS:	BYV1	WDS ID/Discoverer
P:	15000.000	Orbital period (years)
a:	8.22545	Semi-major axis (arcseconds)
i:	56.0	Inclination (degrees)
Ω:	99.0	Longitude of ascending node (degrees)
T:	3200.000	Epoch of periastron passage (year)
e:	0.44	Eccentricity
ω:	356.0	Longitude of periastron (degrees)
Start-Year:	-5475.0	Year
End-Year:	9525.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BYV1
Position:	121753.19-555831.8	Epoch-2000 right ascension and declination
WDS-ID:	12179-5559	WDS designation
Discoverer Code:	BYV1	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	106906	HD catalog number
Hipparcos number:	59960	Hipparcos catalog number
V1:	7.81	Magnitude of the primary
V2:	13.	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Ngu2021	Reference

Double Star Orbit for BYV1

WDS 6th Orbit including measures of BYV1

-- 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 BYV1

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    3.492    37.61
--------------------------
-5475.00   11.311   269.68
-5375.00   11.385   270.31
-5275.00   11.454   270.94
-5175.00   11.517   271.55
-5075.00   11.574   272.17
-4975.00   11.625   272.77
-4875.00   11.671   273.37
-4775.00   11.712   273.97
-4675.00   11.746   274.56
-4575.00   11.775   275.15
-4475.00   11.798   275.74
-4375.00   11.815   276.32
-4275.00   11.827   276.91
-4175.00   11.833   277.49
-4075.00   11.833   278.07
-3975.00   11.828   278.65
-3875.00   11.817   279.24
-3775.00   11.800   279.82
-3675.00   11.777   280.41
-3575.00   11.748   281.00
-3475.00   11.714   281.59
-3375.00   11.674   282.19
-3275.00   11.628   282.79
-3175.00   11.576   283.39
-3075.00   11.518   284.00
-2975.00   11.455   284.62
-2875.00   11.386   285.25
-2775.00   11.310   285.88
-2675.00   11.229   286.52
-2575.00   11.142   287.17
-2475.00   11.049   287.84
-2375.00   10.950   288.51
-2275.00   10.845   289.20
-2175.00   10.735   289.90
-2075.00   10.618   290.61
-1975.00   10.496   291.34
-1875.00   10.367   292.09
-1775.00   10.233   292.86
-1675.00   10.092   293.65
-1575.00    9.946   294.46
-1475.00    9.794   295.30
-1375.00    9.636   296.16
-1275.00    9.472   297.06
-1175.00    9.303   297.98
-1075.00    9.128   298.94
-975.00    8.947   299.94
-875.00    8.760   300.98
-775.00    8.568   302.07
-675.00    8.371   303.20
-575.00    8.168   304.40
-475.00    7.960   305.65
-375.00    7.748   306.97
-275.00    7.530   308.37
-175.00    7.309   309.85
-75.00    7.083   311.43
25.00    6.854   313.11
125.00    6.622   314.90
225.00    6.387   316.83
325.00    6.150   318.91
425.00    5.912   321.15
525.00    5.673   323.58
625.00    5.436   326.23
725.00    5.202   329.11
825.00    4.971   332.26
925.00    4.746   335.72
1025.00    4.530   339.51
1125.00    4.324   343.68
1225.00    4.132   348.25
1325.00    3.958   353.24
1425.00    3.804   358.66
1525.00    3.675     4.49
1625.00    3.574    10.71
1725.00    3.504    17.23
1825.00    3.467    23.95
1925.00    3.463    30.75
2025.00    3.491    37.51
2125.00    3.548    44.10
2225.00    3.631    50.44
2325.00    3.734    56.45
2425.00    3.851    62.13
2525.00    3.976    67.45
2625.00    4.103    72.45
2725.00    4.225    77.16
2825.00    4.338    81.60
2925.00    4.436    85.84
3025.00    4.515    89.91
3125.00    4.572    93.85
3225.00    4.604    97.72
3325.00    4.612   101.56
3425.00    4.595   105.40
3525.00    4.554   109.30
3625.00    4.492   113.28
3725.00    4.413   117.39
3825.00    4.319   121.67
3925.00    4.217   126.14
4025.00    4.111   130.85
4125.00    4.005   135.80
4225.00    3.906   141.01
4325.00    3.818   146.48
4425.00    3.745   152.19
4525.00    3.692   158.09
4625.00    3.663   164.13
4725.00    3.659   170.22
4825.00    3.682   176.28
4925.00    3.733   182.22
5025.00    3.810   187.96
5125.00    3.911   193.44
5225.00    4.035   198.61
5325.00    4.180   203.45
5425.00    4.341   207.94
5525.00    4.517   212.10
5625.00    4.706   215.94
5725.00    4.904   219.48
5825.00    5.110   222.73
5925.00    5.321   225.73
6025.00    5.537   228.50
6125.00    5.756   231.06
6225.00    5.976   233.43
6325.00    6.197   235.63
6425.00    6.418   237.68
6525.00    6.638   239.59
6625.00    6.856   241.38
6725.00    7.072   243.07
6825.00    7.286   244.65
6925.00    7.496   246.14
7025.00    7.703   247.55
7125.00    7.906   248.89
7225.00    8.105   250.16
7325.00    8.300   251.38
7425.00    8.491   252.53
7525.00    8.677   253.64
7625.00    8.858   254.70
7725.00    9.035   255.72
7825.00    9.207   256.70
7925.00    9.373   257.64
8025.00    9.535   258.56
8125.00    9.691   259.44
8225.00    9.842   260.29
8325.00    9.988   261.12
8425.00   10.128   261.93
8525.00   10.263   262.71
8625.00   10.393   263.48
8725.00   10.517   264.22
8825.00   10.636   264.95
8925.00   10.749   265.67
9025.00   10.857   266.36
9125.00   10.959   267.05
9225.00   11.055   267.72
9325.00   11.146   268.38
9425.00   11.231   269.04

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 16:45:09