Double Star Calculator - Orbit

Orbital Elements for A1609AB
WDS: A1609AB WDS ID/Discoverer
P: 44.240 Orbital period (years)
a: 0.321 Semi-major axis (arcseconds)
i: 26.0 Inclination (degrees)
Ω: 40.4 Longitude of ascending node (degrees)
T: 1981.240 Epoch of periastron passage (year)
e: 0.52 Eccentricity
ω: 153.0 Longitude of periastron (degrees)
Start-Year: 2002.88 Year
End-Year: 2047.12 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1609AB
Position: 132548.12+442938.3 Epoch-2000 right ascension and declination
WDS-ID: 13258+4430 WDS designation
Discoverer Code: A1609AB Discover designation and components
ADS number: 8901 Aitken Double Star catalog
HD number: 116878 HD catalog number
Hipparcos number: 65518 Hipparcos catalog number
V1: 9.49 Magnitude of the primary
V2: 8.79 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1989 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: Hei1991 Reference

Double Star Orbit for A1609AB



WDS 6th Orbit including measures of A1609AB

-- 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 A1609AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.161   222.94
--------------------------
2002.88    0.477    14.44
2002.98    0.477    14.72
2003.08    0.478    15.00
2003.18    0.478    15.29
2003.28    0.478    15.57
2003.38    0.478    15.85
2003.48    0.478    16.13
2003.58    0.479    16.41
2003.68    0.479    16.69
2003.78    0.479    16.97
2003.88    0.479    17.26
2003.98    0.479    17.54
2004.08    0.479    17.82
2004.18    0.479    18.10
2004.28    0.479    18.38
2004.38    0.479    18.66
2004.48    0.479    18.94
2004.58    0.479    19.22
2004.68    0.479    19.50
2004.78    0.479    19.78
2004.88    0.479    20.06
2004.98    0.479    20.34
2005.08    0.479    20.62
2005.18    0.479    20.90
2005.28    0.479    21.18
2005.38    0.479    21.46
2005.48    0.479    21.74
2005.58    0.479    22.02
2005.68    0.479    22.30
2005.78    0.478    22.58
2005.88    0.478    22.86
2005.98    0.478    23.15
2006.08    0.478    23.43
2006.18    0.477    23.71
2006.28    0.477    23.99
2006.38    0.477    24.28
2006.48    0.477    24.56
2006.58    0.476    24.84
2006.68    0.476    25.13
2006.78    0.476    25.41
2006.88    0.475    25.70
2006.98    0.475    25.98
2007.08    0.474    26.27
2007.18    0.474    26.55
2007.28    0.474    26.84
2007.38    0.473    27.13
2007.48    0.473    27.41
2007.58    0.472    27.70
2007.68    0.472    27.99
2007.78    0.471    28.28
2007.88    0.471    28.57
2007.98    0.470    28.86
2008.08    0.469    29.15
2008.18    0.469    29.45
2008.28    0.468    29.74
2008.38    0.468    30.03
2008.48    0.467    30.33
2008.58    0.466    30.62
2008.68    0.466    30.92
2008.78    0.465    31.22
2008.88    0.464    31.52
2008.98    0.463    31.82
2009.08    0.463    32.12
2009.18    0.462    32.42
2009.28    0.461    32.72
2009.38    0.460    33.02
2009.48    0.460    33.33
2009.58    0.459    33.63
2009.68    0.458    33.94
2009.78    0.457    34.25
2009.88    0.456    34.56
2009.98    0.455    34.87
2010.08    0.454    35.18
2010.18    0.453    35.49
2010.28    0.452    35.80
2010.38    0.451    36.12
2010.48    0.450    36.44
2010.58    0.449    36.75
2010.68    0.448    37.07
2010.78    0.447    37.40
2010.88    0.446    37.72
2010.98    0.445    38.04
2011.08    0.444    38.37
2011.18    0.443    38.70
2011.28    0.441    39.03
2011.38    0.440    39.36
2011.48    0.439    39.69
2011.58    0.438    40.03
2011.68    0.437    40.36
2011.78    0.435    40.70
2011.88    0.434    41.04
2011.98    0.433    41.38
2012.08    0.431    41.73
2012.18    0.430    42.08
2012.28    0.429    42.43
2012.38    0.427    42.78
2012.48    0.426    43.13
2012.58    0.424    43.49
2012.68    0.423    43.85
2012.78    0.421    44.21
2012.88    0.420    44.57
2012.98    0.418    44.94
2013.08    0.417    45.31
2013.18    0.415    45.68
2013.28    0.414    46.05
2013.38    0.412    46.43
2013.48    0.411    46.81
2013.58    0.409    47.19
2013.68    0.407    47.58
2013.78    0.406    47.97
2013.88    0.404    48.36
2013.98    0.402    48.76
2014.08    0.400    49.16
2014.18    0.399    49.56
2014.28    0.397    49.97
2014.38    0.395    50.38
2014.48    0.393    50.79
2014.58    0.391    51.21
2014.68    0.390    51.63
2014.78    0.388    52.06
2014.88    0.386    52.49
2014.98    0.384    52.92
2015.08    0.382    53.36
2015.18    0.380    53.81
2015.28    0.378    54.26
2015.38    0.376    54.71
2015.48    0.374    55.17
2015.58    0.372    55.63
2015.68    0.370    56.10
2015.78    0.367    56.57
2015.88    0.365    57.05
2015.98    0.363    57.54
2016.08    0.361    58.03
2016.18    0.359    58.53
2016.28    0.357    59.03
2016.38    0.354    59.54
2016.48    0.352    60.06
2016.58    0.350    60.58
2016.68    0.347    61.11
2016.78    0.345    61.65
2016.88    0.343    62.19
2016.98    0.340    62.74
2017.08    0.338    63.30
2017.18    0.335    63.87
2017.28    0.333    64.45
2017.38    0.330    65.03
2017.48    0.328    65.63
2017.58    0.325    66.23
2017.68    0.323    66.84
2017.78    0.320    67.47
2017.88    0.318    68.10
2017.98    0.315    68.74
2018.08    0.312    69.40
2018.18    0.310    70.06
2018.28    0.307    70.74
2018.38    0.304    71.43
2018.48    0.302    72.13
2018.58    0.299    72.84
2018.68    0.296    73.57
2018.78    0.293    74.31
2018.88    0.291    75.06
2018.98    0.288    75.83
2019.08    0.285    76.62
2019.18    0.282    77.42
2019.28    0.279    78.24
2019.38    0.276    79.07
2019.48    0.273    79.93
2019.58    0.270    80.80
2019.68    0.267    81.69
2019.78    0.264    82.60
2019.88    0.262    83.53
2019.98    0.259    84.48
2020.08    0.256    85.45
2020.18    0.253    86.45
2020.28    0.250    87.47
2020.38    0.246    88.52
2020.48    0.243    89.59
2020.58    0.240    90.69
2020.68    0.237    91.82
2020.78    0.234    92.98
2020.88    0.231    94.17
2020.98    0.228    95.39
2021.08    0.225    96.64
2021.18    0.222    97.92
2021.28    0.219    99.25
2021.38    0.216   100.61
2021.48    0.213   102.00
2021.58    0.210   103.44
2021.68    0.207   104.92
2021.78    0.204   106.44
2021.88    0.201   108.01
2021.98    0.198   109.62
2022.08    0.196   111.28
2022.18    0.193   112.98
2022.28    0.190   114.74
2022.38    0.187   116.55
2022.48    0.185   118.41
2022.58    0.182   120.33
2022.68    0.179   122.30
2022.78    0.177   124.33
2022.88    0.175   126.41
2022.98    0.172   128.55
2023.08    0.170   130.75
2023.18    0.168   133.01
2023.28    0.166   135.33
2023.38    0.164   137.70
2023.48    0.162   140.13
2023.58    0.160   142.61
2023.68    0.159   145.15
2023.78    0.157   147.74
2023.88    0.156   150.37
2023.98    0.154   153.05
2024.08    0.153   155.78
2024.18    0.152   158.54
2024.28    0.151   161.33
2024.38    0.151   164.16
2024.48    0.150   167.00
2024.58    0.150   169.87
2024.68    0.149   172.76
2024.78    0.149   175.65
2024.88    0.149   178.55
2024.98    0.149   181.45
2025.08    0.149   184.35
2025.18    0.150   187.23
2025.28    0.150   190.10
2025.38    0.150   192.96
2025.48    0.151   195.79
2025.58    0.152   198.60
2025.68    0.152   201.39
2025.78    0.153   204.14
2025.88    0.154   206.87
2025.98    0.155   209.55
2026.08    0.156   212.21
2026.18    0.157   214.82
2026.28    0.159   217.40
2026.38    0.160   219.94
2026.48    0.161   222.44
2026.58    0.162   224.90
2026.68    0.164   227.32
2026.78    0.165   229.70
2026.88    0.167   232.04
2026.98    0.168   234.34
2027.08    0.170   236.60
2027.18    0.171   238.82
2027.28    0.173   240.99
2027.38    0.174   243.13
2027.48    0.176   245.23
2027.58    0.178   247.29
2027.68    0.179   249.31
2027.78    0.181   251.29
2027.88    0.183   253.24
2027.98    0.185   255.15
2028.08    0.186   257.02
2028.18    0.188   258.85
2028.28    0.190   260.65
2028.38    0.192   262.42
2028.48    0.194   264.15
2028.58    0.196   265.85
2028.68    0.198   267.51
2028.78    0.200   269.14
2028.88    0.202   270.74
2028.98    0.204   272.31
2029.08    0.206   273.85
2029.18    0.208   275.35
2029.28    0.210   276.83
2029.38    0.212   278.28
2029.48    0.214   279.70
2029.58    0.216   281.10
2029.68    0.218   282.46
2029.78    0.220   283.80
2029.88    0.222   285.12
2029.98    0.225   286.41
2030.08    0.227   287.67
2030.18    0.229   288.91
2030.28    0.231   290.13
2030.38    0.233   291.33
2030.48    0.235   292.50
2030.58    0.238   293.65
2030.68    0.240   294.78
2030.78    0.242   295.89
2030.88    0.244   296.98
2030.98    0.246   298.05
2031.08    0.249   299.10
2031.18    0.251   300.13
2031.28    0.253   301.14
2031.38    0.255   302.14
2031.48    0.258   303.12
2031.58    0.260   304.08
2031.68    0.262   305.02
2031.78    0.264   305.95
2031.88    0.267   306.87
2031.98    0.269   307.76
2032.08    0.271   308.65
2032.18    0.273   309.52
2032.28    0.275   310.37
2032.38    0.278   311.21
2032.48    0.280   312.04
2032.58    0.282   312.86
2032.68    0.284   313.66
2032.78    0.287   314.45
2032.88    0.289   315.23
2032.98    0.291   315.99
2033.08    0.293   316.75
2033.18    0.295   317.49
2033.28    0.297   318.23
2033.38    0.300   318.95
2033.48    0.302   319.66
2033.58    0.304   320.36
2033.68    0.306   321.05
2033.78    0.308   321.74
2033.88    0.310   322.41
2033.98    0.312   323.07
2034.08    0.315   323.73
2034.18    0.317   324.37
2034.28    0.319   325.01
2034.38    0.321   325.64
2034.48    0.323   326.26
2034.58    0.325   326.88
2034.68    0.327   327.48
2034.78    0.329   328.08
2034.88    0.331   328.67
2034.98    0.333   329.25
2035.08    0.335   329.83
2035.18    0.337   330.40
2035.28    0.339   330.96
2035.38    0.341   331.52
2035.48    0.343   332.07
2035.58    0.345   332.61
2035.68    0.347   333.15
2035.78    0.349   333.68
2035.88    0.351   334.21
2035.98    0.353   334.73
2036.08    0.355   335.25
2036.18    0.356   335.76
2036.28    0.358   336.26
2036.38    0.360   336.76
2036.48    0.362   337.25
2036.58    0.364   337.74
2036.68    0.366   338.22
2036.78    0.367   338.70
2036.88    0.369   339.18
2036.98    0.371   339.65
2037.08    0.373   340.11
2037.18    0.375   340.57
2037.28    0.376   341.03
2037.38    0.378   341.48
2037.48    0.380   341.93
2037.58    0.381   342.38
2037.68    0.383   342.82
2037.78    0.385   343.25
2037.88    0.386   343.69
2037.98    0.388   344.12
2038.08    0.390   344.54
2038.18    0.391   344.96
2038.28    0.393   345.38
2038.38    0.395   345.80
2038.48    0.396   346.21
2038.58    0.398   346.62
2038.68    0.399   347.02
2038.78    0.401   347.43
2038.88    0.402   347.83
2038.98    0.404   348.22
2039.08    0.405   348.62
2039.18    0.407   349.01
2039.28    0.408   349.39
2039.38    0.410   349.78
2039.48    0.411   350.16
2039.58    0.412   350.54
2039.68    0.414   350.92
2039.78    0.415   351.29
2039.88    0.417   351.66
2039.98    0.418   352.03
2040.08    0.419   352.40
2040.18    0.421   352.77
2040.28    0.422   353.13
2040.38    0.423   353.49
2040.48    0.425   353.85
2040.58    0.426   354.20
2040.68    0.427   354.56
2040.78    0.428   354.91
2040.88    0.430   355.26
2040.98    0.431   355.61
2041.08    0.432   355.95
2041.18    0.433   356.30
2041.28    0.434   356.64
2041.38    0.436   356.98
2041.48    0.437   357.32
2041.58    0.438   357.65
2041.68    0.439   357.99
2041.78    0.440   358.32
2041.88    0.441   358.65
2041.98    0.442   358.98
2042.08    0.443   359.31
2042.18    0.444   359.64
2042.28    0.445   359.96
2042.38    0.446     0.29
2042.48    0.447     0.61
2042.58    0.448     0.93
2042.68    0.449     1.25
2042.78    0.450     1.57
2042.88    0.451     1.88
2042.98    0.452     2.20
2043.08    0.453     2.51
2043.18    0.454     2.83
2043.28    0.455     3.14
2043.38    0.456     3.45
2043.48    0.457     3.76
2043.58    0.457     4.07
2043.68    0.458     4.37
2043.78    0.459     4.68
2043.88    0.460     4.98
2043.98    0.461     5.29
2044.08    0.461     5.59
2044.18    0.462     5.89
2044.28    0.463     6.19
2044.38    0.463     6.49
2044.48    0.464     6.79
2044.58    0.465     7.09
2044.68    0.466     7.39
2044.78    0.466     7.69
2044.88    0.467     7.98
2044.98    0.467     8.28
2045.08    0.468     8.57
2045.18    0.469     8.86
2045.28    0.469     9.16
2045.38    0.470     9.45
2045.48    0.470     9.74
2045.58    0.471    10.03
2045.68    0.471    10.32
2045.78    0.472    10.61
2045.88    0.472    10.90
2045.98    0.473    11.19
2046.08    0.473    11.48
2046.18    0.474    11.76
2046.28    0.474    12.05
2046.38    0.475    12.34
2046.48    0.475    12.62
2046.58    0.475    12.91
2046.68    0.476    13.19
2046.78    0.476    13.48
2046.88    0.476    13.76
2046.98    0.477    14.04
2047.08    0.477    14.33






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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.


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