Double Star Calculator - Orbit

Orbital Elements for RST2280AA,AB
WDS: RST2280AA,AB WDS ID/Discoverer
P: 31.500 Orbital period (years)
a: 0.529 Semi-major axis (arcseconds)
i: 163.5 Inclination (degrees)
Ω: 168.3 Longitude of ascending node (degrees)
T: 2020.764 Epoch of periastron passage (year)
e: 0.6497 Eccentricity
ω: 18.3 Longitude of periastron (degrees)
Start-Year: 2009.25 Year
End-Year: 2040.75 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for RST2280AA,AB
Position: 022901.67-195845.0 Epoch-2000 right ascension and declination
WDS-ID: 02290-1959 WDS designation
Discoverer Code: RST2280AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 15468 HD catalog number
Hipparcos number: 11565 Hipparcos catalog number
V1: 8.95 Magnitude of the primary
V2: 12.24 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: Flags
Ephemerides: Ephemerides
Code: Msn2023 Reference

Double Star Orbit for RST2280AA,AB



WDS 6th Orbit including measures of RST2280AA,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 RST2280AA,AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.597    10.10
--------------------------
2009.25    0.817   317.06
2009.35    0.815   316.71
2009.45    0.813   316.36
2009.55    0.810   316.01
2009.65    0.808   315.65
2009.75    0.805   315.29
2009.85    0.802   314.93
2009.95    0.800   314.57
2010.05    0.797   314.20
2010.15    0.794   313.83
2010.25    0.791   313.46
2010.35    0.788   313.09
2010.45    0.785   312.71
2010.55    0.782   312.33
2010.65    0.779   311.95
2010.75    0.776   311.57
2010.85    0.773   311.18
2010.95    0.769   310.78
2011.05    0.766   310.39
2011.15    0.763   309.99
2011.25    0.759   309.59
2011.35    0.756   309.18
2011.45    0.752   308.77
2011.55    0.749   308.36
2011.65    0.745   307.94
2011.75    0.741   307.52
2011.85    0.737   307.09
2011.95    0.733   306.66
2012.05    0.729   306.22
2012.15    0.725   305.78
2012.25    0.721   305.34
2012.35    0.717   304.89
2012.45    0.713   304.43
2012.55    0.709   303.97
2012.65    0.705   303.50
2012.75    0.700   303.03
2012.85    0.696   302.55
2012.95    0.691   302.07
2013.05    0.687   301.58
2013.15    0.682   301.08
2013.25    0.677   300.57
2013.35    0.673   300.06
2013.45    0.668   299.54
2013.55    0.663   299.02
2013.65    0.658   298.48
2013.75    0.653   297.94
2013.85    0.648   297.39
2013.95    0.642   296.83
2014.05    0.637   296.26
2014.15    0.632   295.68
2014.25    0.627   295.09
2014.35    0.621   294.49
2014.45    0.616   293.88
2014.55    0.610   293.26
2014.65    0.604   292.63
2014.75    0.598   291.98
2014.85    0.593   291.33
2014.95    0.587   290.66
2015.05    0.581   289.97
2015.15    0.575   289.27
2015.25    0.569   288.56
2015.35    0.562   287.83
2015.45    0.556   287.09
2015.55    0.550   286.32
2015.65    0.543   285.54
2015.75    0.537   284.74
2015.85    0.530   283.93
2015.95    0.524   283.09
2016.05    0.517   282.22
2016.15    0.510   281.34
2016.25    0.503   280.43
2016.35    0.496   279.50
2016.45    0.489   278.54
2016.55    0.482   277.55
2016.65    0.475   276.53
2016.75    0.468   275.48
2016.85    0.460   274.40
2016.95    0.453   273.28
2017.05    0.445   272.13
2017.15    0.438   270.93
2017.25    0.430   269.69
2017.35    0.422   268.41
2017.45    0.414   267.07
2017.55    0.407   265.69
2017.65    0.399   264.25
2017.75    0.391   262.76
2017.85    0.383   261.20
2017.95    0.374   259.57
2018.05    0.366   257.87
2018.15    0.358   256.09
2018.25    0.350   254.23
2018.35    0.341   252.27
2018.45    0.333   250.22
2018.55    0.325   248.07
2018.65    0.316   245.79
2018.75    0.308   243.40
2018.85    0.299   240.87
2018.95    0.291   238.19
2019.05    0.283   235.36
2019.15    0.275   232.36
2019.25    0.266   229.17
2019.35    0.258   225.79
2019.45    0.251   222.19
2019.55    0.243   218.36
2019.65    0.236   214.29
2019.75    0.228   209.95
2019.85    0.222   205.34
2019.95    0.215   200.45
2020.05    0.209   195.26
2020.15    0.204   189.78
2020.25    0.199   184.01
2020.35    0.194   177.96
2020.45    0.191   171.66
2020.55    0.188   165.15
2020.65    0.186   158.46
2020.75    0.185   151.66
2020.85    0.184   144.81
2020.95    0.185   137.98
2021.05    0.187   131.24
2021.15    0.189   124.65
2021.25    0.193   118.26
2021.35    0.197   112.13
2021.45    0.202   106.28
2021.55    0.208   100.75
2021.65    0.215    95.52
2021.75    0.221    90.61
2021.85    0.229    86.01
2021.95    0.237    81.71
2022.05    0.245    77.68
2022.15    0.253    73.92
2022.25    0.262    70.40
2022.35    0.270    67.10
2022.45    0.279    64.02
2022.55    0.288    61.12
2022.65    0.297    58.40
2022.75    0.306    55.84
2022.85    0.315    53.43
2022.95    0.325    51.16
2023.05    0.334    49.00
2023.15    0.343    46.96
2023.25    0.352    45.03
2023.35    0.360    43.19
2023.45    0.369    41.43
2023.55    0.378    39.76
2023.65    0.387    38.17
2023.75    0.395    36.65
2023.85    0.404    35.19
2023.95    0.412    33.79
2024.05    0.421    32.44
2024.15    0.429    31.15
2024.25    0.437    29.91
2024.35    0.445    28.71
2024.45    0.453    27.56
2024.55    0.461    26.44
2024.65    0.469    25.36
2024.75    0.477    24.32
2024.85    0.484    23.31
2024.95    0.492    22.33
2025.05    0.499    21.38
2025.15    0.507    20.46
2025.25    0.514    19.57
2025.35    0.521    18.70
2025.45    0.528    17.85
2025.55    0.535    17.02
2025.65    0.542    16.22
2025.75    0.549    15.44
2025.85    0.555    14.67
2025.95    0.562    13.92
2026.05    0.568    13.19
2026.15    0.575    12.48
2026.25    0.581    11.78
2026.35    0.587    11.10
2026.45    0.594    10.43
2026.55    0.600     9.78
2026.65    0.606     9.14
2026.75    0.612     8.51
2026.85    0.617     7.89
2026.95    0.623     7.28
2027.05    0.629     6.69
2027.15    0.634     6.10
2027.25    0.640     5.53
2027.35    0.645     4.97
2027.45    0.651     4.41
2027.55    0.656     3.86
2027.65    0.661     3.33
2027.75    0.666     2.80
2027.85    0.671     2.28
2027.95    0.676     1.76
2028.05    0.681     1.26
2028.15    0.686     0.76
2028.25    0.691     0.27
2028.35    0.695   359.78
2028.45    0.700   359.30
2028.55    0.705   358.83
2028.65    0.709   358.36
2028.75    0.713   357.90
2028.85    0.718   357.45
2028.95    0.722   357.00
2029.05    0.726   356.55
2029.15    0.730   356.11
2029.25    0.734   355.68
2029.35    0.738   355.25
2029.45    0.742   354.82
2029.55    0.746   354.40
2029.65    0.750   353.99
2029.75    0.754   353.57
2029.85    0.757   353.16
2029.95    0.761   352.76
2030.05    0.764   352.36
2030.15    0.768   351.96
2030.25    0.771   351.57
2030.35    0.774   351.18
2030.45    0.778   350.79
2030.55    0.781   350.41
2030.65    0.784   350.03
2030.75    0.787   349.65
2030.85    0.790   349.27
2030.95    0.793   348.90
2031.05    0.796   348.53
2031.15    0.799   348.17
2031.25    0.802   347.80
2031.35    0.804   347.44
2031.45    0.807   347.08
2031.55    0.810   346.72
2031.65    0.812   346.37
2031.75    0.815   346.02
2031.85    0.817   345.67
2031.95    0.819   345.32
2032.05    0.822   344.97
2032.15    0.824   344.63
2032.25    0.826   344.29
2032.35    0.828   343.95
2032.45    0.830   343.61
2032.55    0.832   343.27
2032.65    0.834   342.93
2032.75    0.836   342.60
2032.85    0.838   342.27
2032.95    0.840   341.94
2033.05    0.842   341.61
2033.15    0.843   341.28
2033.25    0.845   340.95
2033.35    0.847   340.63
2033.45    0.848   340.30
2033.55    0.850   339.98
2033.65    0.851   339.66
2033.75    0.852   339.33
2033.85    0.854   339.01
2033.95    0.855   338.69
2034.05    0.856   338.38
2034.15    0.857   338.06
2034.25    0.859   337.74
2034.35    0.860   337.43
2034.45    0.861   337.11
2034.55    0.861   336.80
2034.65    0.862   336.48
2034.75    0.863   336.17
2034.85    0.864   335.86
2034.95    0.865   335.55
2035.05    0.865   335.23
2035.15    0.866   334.92
2035.25    0.867   334.61
2035.35    0.867   334.30
2035.45    0.868   333.99
2035.55    0.868   333.68
2035.65    0.868   333.37
2035.75    0.869   333.06
2035.85    0.869   332.75
2035.95    0.869   332.45
2036.05    0.869   332.14
2036.15    0.869   331.83
2036.25    0.869   331.52
2036.35    0.869   331.21
2036.45    0.869   330.90
2036.55    0.869   330.60
2036.65    0.869   330.29
2036.75    0.869   329.98
2036.85    0.869   329.67
2036.95    0.868   329.36
2037.05    0.868   329.05
2037.15    0.867   328.74
2037.25    0.867   328.43
2037.35    0.866   328.12
2037.45    0.866   327.81
2037.55    0.865   327.50
2037.65    0.865   327.19
2037.75    0.864   326.87
2037.85    0.863   326.56
2037.95    0.862   326.25
2038.05    0.861   325.93
2038.15    0.860   325.62
2038.25    0.859   325.30
2038.35    0.858   324.99
2038.45    0.857   324.67
2038.55    0.856   324.35
2038.65    0.855   324.04
2038.75    0.854   323.72
2038.85    0.852   323.40
2038.95    0.851   323.07
2039.05    0.850   322.75
2039.15    0.848   322.43
2039.25    0.847   322.10
2039.35    0.845   321.78
2039.45    0.843   321.45
2039.55    0.842   321.12
2039.65    0.840   320.79
2039.75    0.838   320.46
2039.85    0.836   320.13
2039.95    0.834   319.80
2040.05    0.833   319.46
2040.15    0.831   319.12
2040.25    0.829   318.78
2040.35    0.826   318.44
2040.45    0.824   318.10
2040.55    0.822   317.76
2040.65    0.820   317.41



 

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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 15:00:51


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