Double Star Calculator - Orbit

Orbital Elements for BTZ1AA,AB
WDS: BTZ1AA,AB WDS ID/Discoverer
P: 19.108 Orbital period (years)
a: 0.082 Semi-major axis (arcseconds)
i: 74.5 Inclination (degrees)
Ω: 300.9 Longitude of ascending node (degrees)
T: 2011.350 Epoch of periastron passage (year)
e: 0.238 Eccentricity
ω: 42.0 Longitude of periastron (degrees)
Start-Year: 2015.446 Year
End-Year: 2034.554 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BTZ1AA,AB
Position: 062857.79+201243.8 Epoch-2000 right ascension and declination
WDS-ID: 06290+2013 WDS designation
Discoverer Code: BTZ1AA,AB Discover designation and components
ADS number: 5103 Aitken Double Star catalog
HD number: 45542 HD catalog number
Hipparcos number: 30883 Hipparcos catalog number
V1: 4.10 Magnitude of the primary
V2: 5.1 Magnitude of the secondary
Equinox: Equinox
Date: 2019 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: Msn2021a Reference

Double Star Orbit for BTZ1AA,AB



WDS 6th Orbit including measures of BTZ1AA,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 BTZ1AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.045   276.05
--------------------------
2015.45    0.070   110.89
2015.55    0.072   111.55
2015.65    0.073   112.17
2015.75    0.075   112.77
2015.85    0.077   113.34
2015.95    0.078   113.89
2016.05    0.080   114.42
2016.15    0.081   114.93
2016.25    0.082   115.42
2016.35    0.084   115.90
2016.45    0.085   116.36
2016.55    0.086   116.81
2016.65    0.087   117.25
2016.75    0.088   117.68
2016.85    0.089   118.10
2016.95    0.090   118.50
2017.05    0.091   118.91
2017.15    0.092   119.30
2017.25    0.092   119.69
2017.35    0.093   120.08
2017.45    0.093   120.45
2017.55    0.094   120.83
2017.65    0.094   121.20
2017.75    0.095   121.57
2017.85    0.095   121.93
2017.95    0.095   122.30
2018.05    0.095   122.66
2018.15    0.095   123.02
2018.25    0.096   123.38
2018.35    0.096   123.74
2018.45    0.095   124.10
2018.55    0.095   124.46
2018.65    0.095   124.83
2018.75    0.095   125.19
2018.85    0.095   125.56
2018.95    0.094   125.92
2019.05    0.094   126.30
2019.15    0.093   126.67
2019.25    0.093   127.05
2019.35    0.092   127.43
2019.45    0.092   127.82
2019.55    0.091   128.21
2019.65    0.090   128.61
2019.75    0.090   129.02
2019.85    0.089   129.43
2019.95    0.088   129.85
2020.05    0.087   130.28
2020.15    0.086   130.72
2020.25    0.085   131.17
2020.35    0.084   131.63
2020.45    0.083   132.10
2020.55    0.082   132.58
2020.65    0.081   133.08
2020.75    0.080   133.59
2020.85    0.078   134.12
2020.95    0.077   134.66
2021.05    0.076   135.22
2021.15    0.074   135.81
2021.25    0.073   136.41
2021.35    0.072   137.04
2021.45    0.070   137.70
2021.55    0.069   138.38
2021.65    0.067   139.09
2021.75    0.066   139.84
2021.85    0.064   140.62
2021.95    0.062   141.44
2022.05    0.061   142.30
2022.15    0.059   143.22
2022.25    0.058   144.18
2022.35    0.056   145.20
2022.45    0.054   146.28
2022.55    0.053   147.44
2022.65    0.051   148.67
2022.75    0.049   149.98
2022.85    0.047   151.39
2022.95    0.046   152.91
2023.05    0.044   154.54
2023.15    0.042   156.30
2023.25    0.041   158.21
2023.35    0.039   160.28
2023.45    0.037   162.53
2023.55    0.036   164.99
2023.65    0.034   167.67
2023.75    0.033   170.59
2023.85    0.031   173.78
2023.95    0.030   177.26
2024.05    0.029   181.04
2024.15    0.028   185.14
2024.25    0.027   189.56
2024.35    0.026   194.28
2024.45    0.025   199.28
2024.55    0.025   204.50
2024.65    0.025   209.87
2024.75    0.025   215.32
2024.85    0.025   220.75
2024.95    0.025   226.09
2025.05    0.026   231.24
2025.15    0.026   236.15
2025.25    0.027   240.78
2025.35    0.028   245.10
2025.45    0.029   249.10
2025.55    0.030   252.79
2025.65    0.032   256.19
2025.75    0.033   259.31
2025.85    0.035   262.17
2025.95    0.036   264.80
2026.05    0.038   267.21
2026.15    0.039   269.43
2026.25    0.041   271.49
2026.35    0.042   273.39
2026.45    0.044   275.15
2026.55    0.046   276.79
2026.65    0.047   278.32
2026.75    0.049   279.76
2026.85    0.050   281.11
2026.95    0.052   282.38
2027.05    0.053   283.58
2027.15    0.054   284.72
2027.25    0.056   285.80
2027.35    0.057   286.84
2027.45    0.058   287.83
2027.55    0.059   288.78
2027.65    0.060   289.69
2027.75    0.061   290.57
2027.85    0.062   291.43
2027.95    0.063   292.26
2028.05    0.064   293.07
2028.15    0.065   293.87
2028.25    0.065   294.65
2028.35    0.066   295.41
2028.45    0.066   296.17
2028.55    0.066   296.92
2028.65    0.066   297.66
2028.75    0.067   298.41
2028.85    0.066   299.15
2028.95    0.066   299.90
2029.05    0.066   300.65
2029.15    0.065   301.42
2029.25    0.065   302.19
2029.35    0.064   302.98
2029.45    0.063   303.79
2029.55    0.062   304.63
2029.65    0.061   305.49
2029.75    0.060   306.39
2029.85    0.059   307.33
2029.95    0.057   308.31
2030.05    0.055   309.35
2030.15    0.054   310.45
2030.25    0.052   311.62
2030.35    0.050   312.89
2030.45    0.048   314.26
2030.55    0.046   315.75
2030.65    0.044   317.39
2030.75    0.041   319.20
2030.85    0.039   321.23
2030.95    0.037   323.51
2031.05    0.034   326.10
2031.15    0.032   329.08
2031.25    0.030   332.53
2031.35    0.027   336.56
2031.45    0.025   341.31
2031.55    0.023   346.93
2031.65    0.021   353.56
2031.75    0.020     1.33
2031.85    0.019    10.23
2031.95    0.018    20.05
2032.05    0.018    30.35
2032.15    0.018    40.54
2032.25    0.019    50.05
2032.35    0.020    58.53
2032.45    0.022    65.86
2032.55    0.024    72.08
2032.65    0.026    77.34
2032.75    0.028    81.77
2032.85    0.031    85.54
2032.95    0.033    88.76
2033.05    0.036    91.54
2033.15    0.038    93.96
2033.25    0.041    96.08
2033.35    0.043    97.95
2033.45    0.046    99.63
2033.55    0.048   101.13
2033.65    0.050   102.49
2033.75    0.053   103.73
2033.85    0.055   104.87
2033.95    0.057   105.91
2034.05    0.059   106.87
2034.15    0.062   107.77
2034.25    0.064   108.61
2034.35    0.066   109.40
2034.45    0.068   110.13
2034.55    0.070   110.83






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 15:47:12



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