Double Star Calculator - Orbit

Orbital Elements for STF2084
WDS: STF2084 WDS ID/Discoverer
P: 34.464 Orbital period (years)
a: 1.32834 Semi-major axis (arcseconds)
i: 131.6 Inclination (degrees)
Ω: 50.601 Longitude of ascending node (degrees)
T: 1933.352 Epoch of periastron passage (year)
e: 0.46342 Eccentricity
ω: 113.177 Longitude of periastron (degrees)
Start-Year: 2007.7681 Year
End-Year: 2042.2319 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for STF2084
Position: 164117.16+313609.8 Epoch-2000 right ascension and declination
WDS-ID: 16413+3136 WDS designation
Discoverer Code: STF2084 Discover designation and components
ADS number: 10157 Aitken Double Star catalog
HD number: 150680 HD catalog number
Hipparcos number: 81693 Hipparcos catalog number
V1: 2.95 Magnitude of the primary
V2: 5.40 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 1 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF2084



WDS 6th Orbit including measures of STF2084

-- 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 STF2084
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.551    74.62
--------------------------
2007.77    1.070   196.95
2007.87    1.072   196.00
2007.97    1.075   195.06
2008.07    1.077   194.12
2008.17    1.079   193.19
2008.27    1.081   192.26
2008.37    1.083   191.33
2008.47    1.085   190.41
2008.57    1.087   189.49
2008.67    1.088   188.57
2008.77    1.090   187.66
2008.87    1.092   186.75
2008.97    1.093   185.84
2009.07    1.095   184.93
2009.17    1.096   184.03
2009.27    1.098   183.13
2009.37    1.099   182.23
2009.47    1.101   181.34
2009.57    1.102   180.44
2009.67    1.104   179.55
2009.77    1.105   178.66
2009.87    1.107   177.78
2009.97    1.108   176.89
2010.07    1.109   176.01
2010.17    1.111   175.13
2010.27    1.112   174.25
2010.37    1.114   173.38
2010.47    1.115   172.50
2010.57    1.117   171.63
2010.67    1.118   170.76
2010.77    1.120   169.90
2010.87    1.122   169.04
2010.97    1.123   168.17
2011.07    1.125   167.32
2011.17    1.126   166.46
2011.27    1.128   165.61
2011.37    1.130   164.76
2011.47    1.132   163.91
2011.57    1.134   163.06
2011.67    1.136   162.22
2011.77    1.137   161.38
2011.87    1.139   160.54
2011.97    1.142   159.71
2012.07    1.144   158.88
2012.17    1.146   158.05
2012.27    1.148   157.23
2012.37    1.150   156.41
2012.47    1.152   155.59
2012.57    1.155   154.77
2012.67    1.157   153.96
2012.77    1.160   153.15
2012.87    1.162   152.35
2012.97    1.165   151.55
2013.07    1.167   150.75
2013.17    1.170   149.96
2013.27    1.173   149.17
2013.37    1.175   148.38
2013.47    1.178   147.60
2013.57    1.181   146.82
2013.67    1.184   146.04
2013.77    1.187   145.27
2013.87    1.190   144.50
2013.97    1.193   143.74
2014.07    1.196   142.98
2014.17    1.199   142.22
2014.27    1.203   141.47
2014.37    1.206   140.72
2014.47    1.209   139.98
2014.57    1.213   139.24
2014.67    1.216   138.51
2014.77    1.220   137.78
2014.87    1.223   137.05
2014.97    1.227   136.33
2015.07    1.230   135.61
2015.17    1.234   134.89
2015.27    1.237   134.18
2015.37    1.241   133.48
2015.47    1.245   132.77
2015.57    1.249   132.08
2015.67    1.253   131.38
2015.77    1.256   130.69
2015.87    1.260   130.01
2015.97    1.264   129.33
2016.07    1.268   128.65
2016.17    1.272   127.98
2016.27    1.276   127.31
2016.37    1.280   126.65
2016.47    1.284   125.99
2016.57    1.288   125.33
2016.67    1.292   124.68
2016.77    1.297   124.04
2016.87    1.301   123.39
2016.97    1.305   122.75
2017.07    1.309   122.12
2017.17    1.313   121.49
2017.27    1.317   120.86
2017.37    1.322   120.24
2017.47    1.326   119.62
2017.57    1.330   119.00
2017.67    1.334   118.39
2017.77    1.338   117.79
2017.87    1.343   117.18
2017.97    1.347   116.58
2018.07    1.351   115.99
2018.17    1.355   115.40
2018.27    1.360   114.81
2018.37    1.364   114.22
2018.47    1.368   113.64
2018.57    1.372   113.06
2018.67    1.377   112.49
2018.77    1.381   111.92
2018.87    1.385   111.35
2018.97    1.389   110.79
2019.07    1.393   110.23
2019.17    1.398   109.67
2019.27    1.402   109.12
2019.37    1.406   108.57
2019.47    1.410   108.02
2019.57    1.414   107.48
2019.67    1.418   106.94
2019.77    1.422   106.40
2019.87    1.426   105.86
2019.97    1.430   105.33
2020.07    1.434   104.80
2020.17    1.438   104.28
2020.27    1.442   103.75
2020.37    1.446   103.23
2020.47    1.450   102.72
2020.57    1.453   102.20
2020.67    1.457   101.69
2020.77    1.461   101.18
2020.87    1.464   100.67
2020.97    1.468   100.17
2021.07    1.472    99.67
2021.17    1.475    99.17
2021.27    1.479    98.67
2021.37    1.482    98.18
2021.47    1.485    97.68
2021.57    1.489    97.19
2021.67    1.492    96.71
2021.77    1.495    96.22
2021.87    1.498    95.74
2021.97    1.502    95.25
2022.07    1.505    94.77
2022.17    1.508    94.30
2022.27    1.510    93.82
2022.37    1.513    93.34
2022.47    1.516    92.87
2022.57    1.519    92.40
2022.67    1.521    91.93
2022.77    1.524    91.46
2022.87    1.526    91.00
2022.97    1.529    90.53
2023.07    1.531    90.07
2023.17    1.533    89.61
2023.27    1.536    89.15
2023.37    1.538    88.69
2023.47    1.540    88.23
2023.57    1.542    87.77
2023.67    1.544    87.32
2023.77    1.545    86.86
2023.87    1.547    86.41
2023.97    1.549    85.96
2024.07    1.550    85.51
2024.17    1.551    85.05
2024.27    1.553    84.60
2024.37    1.554    84.16
2024.47    1.555    83.71
2024.57    1.556    83.26
2024.67    1.557    82.81
2024.77    1.558    82.36
2024.87    1.558    81.92
2024.97    1.559    81.47
2025.07    1.559    81.02
2025.17    1.559    80.58
2025.27    1.560    80.13
2025.37    1.560    79.69
2025.47    1.560    79.24
2025.57    1.559    78.79
2025.67    1.559    78.35
2025.77    1.559    77.90
2025.87    1.558    77.46
2025.97    1.557    77.01
2026.07    1.557    76.56
2026.17    1.556    76.11
2026.27    1.555    75.67
2026.37    1.553    75.22
2026.47    1.552    74.77
2026.57    1.550    74.32
2026.67    1.549    73.86
2026.77    1.547    73.41
2026.87    1.545    72.96
2026.97    1.543    72.50
2027.07    1.540    72.05
2027.17    1.538    71.59
2027.27    1.535    71.13
2027.37    1.533    70.67
2027.47    1.530    70.21
2027.57    1.526    69.74
2027.67    1.523    69.28
2027.77    1.520    68.81
2027.87    1.516    68.34
2027.97    1.512    67.86
2028.07    1.508    67.39
2028.17    1.504    66.91
2028.27    1.499    66.43
2028.37    1.495    65.95
2028.47    1.490    65.46
2028.57    1.485    64.97
2028.67    1.480    64.48
2028.77    1.474    63.98
2028.87    1.469    63.48
2028.97    1.463    62.97
2029.07    1.457    62.46
2029.17    1.450    61.95
2029.27    1.444    61.43
2029.37    1.437    60.91
2029.47    1.430    60.38
2029.57    1.423    59.85
2029.67    1.415    59.31
2029.77    1.408    58.77
2029.87    1.400    58.22
2029.97    1.391    57.66
2030.07    1.383    57.10
2030.17    1.374    56.53
2030.27    1.365    55.95
2030.37    1.356    55.36
2030.47    1.346    54.77
2030.57    1.336    54.16
2030.67    1.326    53.55
2030.77    1.316    52.93
2030.87    1.305    52.30
2030.97    1.294    51.66
2031.07    1.283    51.00
2031.17    1.271    50.34
2031.27    1.259    49.66
2031.37    1.247    48.97
2031.47    1.234    48.27
2031.57    1.222    47.55
2031.67    1.208    46.81
2031.77    1.195    46.06
2031.87    1.181    45.29
2031.97    1.167    44.51
2032.07    1.152    43.70
2032.17    1.138    42.87
2032.27    1.122    42.03
2032.37    1.107    41.15
2032.47    1.091    40.25
2032.57    1.075    39.33
2032.67    1.058    38.38
2032.77    1.041    37.39
2032.87    1.024    36.38
2032.97    1.007    35.32
2033.07    0.989    34.23
2033.17    0.971    33.10
2033.27    0.952    31.93
2033.37    0.933    30.71
2033.47    0.914    29.44
2033.57    0.895    28.11
2033.67    0.875    26.73
2033.77    0.855    25.28
2033.87    0.835    23.76
2033.97    0.815    22.17
2034.07    0.795    20.49
2034.17    0.774    18.73
2034.27    0.754    16.87
2034.37    0.733    14.91
2034.47    0.713    12.84
2034.57    0.692    10.64
2034.67    0.672     8.31
2034.77    0.652     5.83
2034.87    0.633     3.21
2034.97    0.614     0.42
2035.07    0.596   357.46
2035.17    0.579   354.31
2035.27    0.562   350.97
2035.37    0.547   347.44
2035.47    0.533   343.72
2035.57    0.520   339.80
2035.67    0.509   335.70
2035.77    0.500   331.44
2035.87    0.492   327.03
2035.97    0.487   322.51
2036.07    0.484   317.90
2036.17    0.483   313.26
2036.27    0.484   308.63
2036.37    0.488   304.03
2036.47    0.493   299.52
2036.57    0.501   295.13
2036.67    0.510   290.87
2036.77    0.520   286.78
2036.87    0.533   282.87
2036.97    0.546   279.14
2037.07    0.560   275.60
2037.17    0.576   272.23
2037.27    0.592   269.05
2037.37    0.608   266.04
2037.47    0.625   263.19
2037.57    0.642   260.48
2037.67    0.659   257.92
2037.77    0.676   255.49
2037.87    0.693   253.18
2037.97    0.710   250.98
2038.07    0.727   248.88
2038.17    0.743   246.87
2038.27    0.759   244.95
2038.37    0.775   243.10
2038.47    0.790   241.33
2038.57    0.805   239.63
2038.67    0.819   237.98
2038.77    0.833   236.39
2038.87    0.846   234.85
2038.97    0.859   233.36
2039.07    0.871   231.91
2039.17    0.883   230.50
2039.27    0.894   229.13
2039.37    0.905   227.79
2039.47    0.916   226.48
2039.57    0.926   225.20
2039.67    0.935   223.95
2039.77    0.944   222.72
2039.87    0.953   221.52
2039.97    0.961   220.33
2040.07    0.969   219.17
2040.17    0.977   218.02
2040.27    0.984   216.90
2040.37    0.991   215.78
2040.47    0.997   214.69
2040.57    1.003   213.60
2040.67    1.009   212.53
2040.77    1.015   211.47
2040.87    1.020   210.42
2040.97    1.025   209.39
2041.07    1.030   208.36
2041.17    1.034   207.34
2041.27    1.038   206.33
2041.37    1.042   205.33
2041.47    1.046   204.34
2041.57    1.050   203.35
2041.67    1.053   202.37
2041.77    1.057   201.39
2041.87    1.060   200.42
2041.97    1.063   199.46
2042.07    1.065   198.50
2042.17    1.068   197.55



 

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 17:29:51


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