Double Star Calculator - Orbit

Orbital Elements for A1120
WDS: A1120 WDS ID/Discoverer
P: 51.800 Orbital period (years)
a: 0.174 Semi-major axis (arcseconds)
i: 67.0 Inclination (degrees)
Ω: 156.2 Longitude of ascending node (degrees)
T: 1931.400 Epoch of periastron passage (year)
e: 0.723 Eccentricity
ω: 340.0 Longitude of periastron (degrees)
Start-Year: 1999.1 Year
End-Year: 2050.9 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for A1120
Position: 152718.03+094201.1 Epoch-2000 right ascension and declination
WDS-ID: 15273+0942 WDS designation
Discoverer Code: A1120 Discover designation and components
ADS number: 9643 Aitken Double Star catalog
HD number: 137723 HD catalog number
Hipparcos number: 75645 Hipparcos catalog number
V1: 8.5 Magnitude of the primary
V2: 9.1 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: n Flags
Ephemerides: Ephemerides
Code: Msn2023 Reference

Double Star Orbit for A1120



WDS 6th Orbit including measures of A1120

-- 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 A1120
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.188   343.12
--------------------------
1999.10    0.222   319.55
1999.20    0.223   319.66
1999.30    0.224   319.78
1999.40    0.225   319.89
1999.50    0.226   320.00
1999.60    0.227   320.11
1999.70    0.228   320.22
1999.80    0.229   320.33
1999.90    0.230   320.44
2000.00    0.231   320.55
2000.10    0.232   320.65
2000.20    0.233   320.76
2000.30    0.233   320.86
2000.40    0.234   320.97
2000.50    0.235   321.07
2000.60    0.236   321.17
2000.70    0.237   321.27
2000.80    0.238   321.37
2000.90    0.239   321.47
2001.00    0.240   321.57
2001.10    0.241   321.67
2001.20    0.241   321.77
2001.30    0.242   321.87
2001.40    0.243   321.96
2001.50    0.244   322.06
2001.60    0.245   322.15
2001.70    0.246   322.25
2001.80    0.246   322.34
2001.90    0.247   322.43
2002.00    0.248   322.53
2002.10    0.249   322.62
2002.20    0.250   322.71
2002.30    0.250   322.80
2002.40    0.251   322.89
2002.50    0.252   322.98
2002.60    0.253   323.07
2002.70    0.253   323.16
2002.80    0.254   323.25
2002.90    0.255   323.34
2003.00    0.255   323.42
2003.10    0.256   323.51
2003.20    0.257   323.60
2003.30    0.258   323.68
2003.40    0.258   323.77
2003.50    0.259   323.85
2003.60    0.260   323.94
2003.70    0.260   324.02
2003.80    0.261   324.10
2003.90    0.262   324.19
2004.00    0.262   324.27
2004.10    0.263   324.35
2004.20    0.263   324.43
2004.30    0.264   324.52
2004.40    0.265   324.60
2004.50    0.265   324.68
2004.60    0.266   324.76
2004.70    0.266   324.84
2004.80    0.267   324.92
2004.90    0.268   325.00
2005.00    0.268   325.08
2005.10    0.269   325.16
2005.20    0.269   325.23
2005.30    0.270   325.31
2005.40    0.270   325.39
2005.50    0.271   325.47
2005.60    0.271   325.55
2005.70    0.272   325.62
2005.80    0.272   325.70
2005.90    0.273   325.78
2006.00    0.273   325.85
2006.10    0.274   325.93
2006.20    0.274   326.00
2006.30    0.275   326.08
2006.40    0.275   326.15
2006.50    0.276   326.23
2006.60    0.276   326.30
2006.70    0.277   326.38
2006.80    0.277   326.45
2006.90    0.277   326.53
2007.00    0.278   326.60
2007.10    0.278   326.67
2007.20    0.279   326.75
2007.30    0.279   326.82
2007.40    0.279   326.89
2007.50    0.280   326.97
2007.60    0.280   327.04
2007.70    0.280   327.11
2007.80    0.281   327.18
2007.90    0.281   327.25
2008.00    0.281   327.33
2008.10    0.282   327.40
2008.20    0.282   327.47
2008.30    0.282   327.54
2008.40    0.283   327.61
2008.50    0.283   327.68
2008.60    0.283   327.75
2008.70    0.284   327.82
2008.80    0.284   327.89
2008.90    0.284   327.97
2009.00    0.284   328.04
2009.10    0.285   328.11
2009.20    0.285   328.18
2009.30    0.285   328.25
2009.40    0.285   328.32
2009.50    0.285   328.39
2009.60    0.286   328.46
2009.70    0.286   328.52
2009.80    0.286   328.59
2009.90    0.286   328.66
2010.00    0.286   328.73
2010.10    0.287   328.80
2010.20    0.287   328.87
2010.30    0.287   328.94
2010.40    0.287   329.01
2010.50    0.287   329.08
2010.60    0.287   329.15
2010.70    0.287   329.22
2010.80    0.288   329.28
2010.90    0.288   329.35
2011.00    0.288   329.42
2011.10    0.288   329.49
2011.20    0.288   329.56
2011.30    0.288   329.63
2011.40    0.288   329.70
2011.50    0.288   329.76
2011.60    0.288   329.83
2011.70    0.288   329.90
2011.80    0.288   329.97
2011.90    0.288   330.04
2012.00    0.288   330.11
2012.10    0.288   330.17
2012.20    0.288   330.24
2012.30    0.288   330.31
2012.40    0.288   330.38
2012.50    0.288   330.45
2012.60    0.288   330.52
2012.70    0.288   330.58
2012.80    0.288   330.65
2012.90    0.288   330.72
2013.00    0.288   330.79
2013.10    0.288   330.86
2013.20    0.288   330.93
2013.30    0.288   331.00
2013.40    0.288   331.06
2013.50    0.288   331.13
2013.60    0.287   331.20
2013.70    0.287   331.27
2013.80    0.287   331.34
2013.90    0.287   331.41
2014.00    0.287   331.48
2014.10    0.287   331.55
2014.20    0.287   331.61
2014.30    0.286   331.68
2014.40    0.286   331.75
2014.50    0.286   331.82
2014.60    0.286   331.89
2014.70    0.286   331.96
2014.80    0.285   332.03
2014.90    0.285   332.10
2015.00    0.285   332.17
2015.10    0.285   332.24
2015.20    0.284   332.31
2015.30    0.284   332.38
2015.40    0.284   332.45
2015.50    0.284   332.52
2015.60    0.283   332.59
2015.70    0.283   332.66
2015.80    0.283   332.73
2015.90    0.282   332.81
2016.00    0.282   332.88
2016.10    0.282   332.95
2016.20    0.281   333.02
2016.30    0.281   333.09
2016.40    0.281   333.16
2016.50    0.280   333.24
2016.60    0.280   333.31
2016.70    0.280   333.38
2016.80    0.279   333.45
2016.90    0.279   333.53
2017.00    0.278   333.60
2017.10    0.278   333.67
2017.20    0.278   333.75
2017.30    0.277   333.82
2017.40    0.277   333.89
2017.50    0.276   333.97
2017.60    0.276   334.04
2017.70    0.275   334.12
2017.80    0.275   334.19
2017.90    0.274   334.27
2018.00    0.274   334.34
2018.10    0.273   334.42
2018.20    0.273   334.50
2018.30    0.272   334.57
2018.40    0.272   334.65
2018.50    0.271   334.73
2018.60    0.270   334.80
2018.70    0.270   334.88
2018.80    0.269   334.96
2018.90    0.269   335.04
2019.00    0.268   335.12
2019.10    0.267   335.20
2019.20    0.267   335.28
2019.30    0.266   335.36
2019.40    0.266   335.44
2019.50    0.265   335.52
2019.60    0.264   335.60
2019.70    0.264   335.68
2019.80    0.263   335.76
2019.90    0.262   335.85
2020.00    0.261   335.93
2020.10    0.261   336.01
2020.20    0.260   336.10
2020.30    0.259   336.18
2020.40    0.258   336.26
2020.50    0.258   336.35
2020.60    0.257   336.44
2020.70    0.256   336.52
2020.80    0.255   336.61
2020.90    0.254   336.70
2021.00    0.254   336.78
2021.10    0.253   336.87
2021.20    0.252   336.96
2021.30    0.251   337.05
2021.40    0.250   337.14
2021.50    0.249   337.23
2021.60    0.248   337.32
2021.70    0.248   337.42
2021.80    0.247   337.51
2021.90    0.246   337.60
2022.00    0.245   337.70
2022.10    0.244   337.79
2022.20    0.243   337.89
2022.30    0.242   337.99
2022.40    0.241   338.08
2022.50    0.240   338.18
2022.60    0.239   338.28
2022.70    0.238   338.38
2022.80    0.237   338.48
2022.90    0.236   338.58
2023.00    0.235   338.69
2023.10    0.234   338.79
2023.20    0.232   338.89
2023.30    0.231   339.00
2023.40    0.230   339.11
2023.50    0.229   339.21
2023.60    0.228   339.32
2023.70    0.227   339.43
2023.80    0.226   339.54
2023.90    0.224   339.66
2024.00    0.223   339.77
2024.10    0.222   339.88
2024.20    0.221   340.00
2024.30    0.220   340.12
2024.40    0.218   340.24
2024.50    0.217   340.36
2024.60    0.216   340.48
2024.70    0.214   340.60
2024.80    0.213   340.72
2024.90    0.212   340.85
2025.00    0.210   340.98
2025.10    0.209   341.11
2025.20    0.208   341.24
2025.30    0.206   341.37
2025.40    0.205   341.50
2025.50    0.203   341.64
2025.60    0.202   341.78
2025.70    0.200   341.92
2025.80    0.199   342.06
2025.90    0.197   342.21
2026.00    0.196   342.35
2026.10    0.194   342.50
2026.20    0.193   342.65
2026.30    0.191   342.81
2026.40    0.190   342.96
2026.50    0.188   343.12
2026.60    0.187   343.28
2026.70    0.185   343.45
2026.80    0.183   343.62
2026.90    0.182   343.79
2027.00    0.180   343.96
2027.10    0.178   344.14
2027.20    0.176   344.32
2027.30    0.175   344.50
2027.40    0.173   344.69
2027.50    0.171   344.88
2027.60    0.169   345.08
2027.70    0.167   345.28
2027.80    0.166   345.48
2027.90    0.164   345.69
2028.00    0.162   345.91
2028.10    0.160   346.13
2028.20    0.158   346.35
2028.30    0.156   346.58
2028.40    0.154   346.82
2028.50    0.152   347.06
2028.60    0.150   347.31
2028.70    0.148   347.57
2028.80    0.146   347.83
2028.90    0.144   348.10
2029.00    0.142   348.38
2029.10    0.140   348.67
2029.20    0.137   348.96
2029.30    0.135   349.27
2029.40    0.133   349.58
2029.50    0.131   349.91
2029.60    0.128   350.25
2029.70    0.126   350.60
2029.80    0.124   350.96
2029.90    0.121   351.34
2030.00    0.119   351.73
2030.10    0.117   352.14
2030.20    0.114   352.57
2030.30    0.112   353.01
2030.40    0.109   353.48
2030.50    0.107   353.96
2030.60    0.104   354.47
2030.70    0.102   355.01
2030.80    0.099   355.57
2030.90    0.096   356.17
2031.00    0.094   356.80
2031.10    0.091   357.46
2031.20    0.088   358.17
2031.30    0.086   358.92
2031.40    0.083   359.72
2031.50    0.080     0.57
2031.60    0.077     1.49
2031.70    0.074     2.48
2031.80    0.072     3.54
2031.90    0.069     4.70
2032.00    0.066     5.96
2032.10    0.063     7.33
2032.20    0.060     8.84
2032.30    0.057    10.51
2032.40    0.054    12.35
2032.50    0.051    14.41
2032.60    0.048    16.71
2032.70    0.045    19.31
2032.80    0.043    22.26
2032.90    0.040    25.62
2033.00    0.037    29.47
2033.10    0.035    33.90
2033.20    0.032    38.99
2033.30    0.030    44.83
2033.40    0.028    51.48
2033.50    0.027    58.94
2033.60    0.026    67.10
2033.70    0.025    75.74
2033.80    0.025    84.55
2033.90    0.026    93.17
2034.00    0.027   101.31
2034.10    0.028   108.75
2034.20    0.030   115.42
2034.30    0.032   121.34
2034.40    0.034   126.56
2034.50    0.036   131.17
2034.60    0.038   135.26
2034.70    0.040   138.94
2034.80    0.042   142.26
2034.90    0.044   145.29
2035.00    0.046   148.11
2035.10    0.047   150.74
2035.20    0.048   153.23
2035.30    0.049   155.61
2035.40    0.050   157.92
2035.50    0.050   160.17
2035.60    0.051   162.40
2035.70    0.051   164.60
2035.80    0.051   166.82
2035.90    0.050   169.05
2036.00    0.050   171.31
2036.10    0.049   173.61
2036.20    0.049   175.97
2036.30    0.048   178.40
2036.40    0.047   180.90
2036.50    0.047   183.48
2036.60    0.046   186.15
2036.70    0.045   188.92
2036.80    0.044   191.78
2036.90    0.043   194.75
2037.00    0.043   197.81
2037.10    0.042   200.97
2037.20    0.042   204.23
2037.30    0.041   207.56
2037.40    0.041   210.97
2037.50    0.040   214.44
2037.60    0.040   217.94
2037.70    0.040   221.47
2037.80    0.040   225.00
2037.90    0.040   228.52
2038.00    0.041   231.99
2038.10    0.041   235.41
2038.20    0.041   238.75
2038.30    0.042   242.00
2038.40    0.043   245.15
2038.50    0.044   248.19
2038.60    0.045   251.11
2038.70    0.046   253.90
2038.80    0.047   256.57
2038.90    0.048   259.12
2039.00    0.049   261.54
2039.10    0.050   263.84
2039.20    0.052   266.02
2039.30    0.053   268.08
2039.40    0.055   270.04
2039.50    0.056   271.90
2039.60    0.058   273.66
2039.70    0.059   275.33
2039.80    0.061   276.91
2039.90    0.062   278.41
2040.00    0.064   279.84
2040.10    0.066   281.19
2040.20    0.067   282.48
2040.30    0.069   283.70
2040.40    0.071   284.87
2040.50    0.072   285.98
2040.60    0.074   287.04
2040.70    0.076   288.05
2040.80    0.078   289.01
2040.90    0.079   289.94
2041.00    0.081   290.82
2041.10    0.083   291.67
2041.20    0.085   292.48
2041.30    0.086   293.26
2041.40    0.088   294.00
2041.50    0.090   294.72
2041.60    0.092   295.42
2041.70    0.093   296.08
2041.80    0.095   296.72
2041.90    0.097   297.34
2042.00    0.098   297.94
2042.10    0.100   298.51
2042.20    0.102   299.07
2042.30    0.104   299.61
2042.40    0.105   300.13
2042.50    0.107   300.63
2042.60    0.109   301.12
2042.70    0.110   301.59
2042.80    0.112   302.05
2042.90    0.114   302.49
2043.00    0.116   302.93
2043.10    0.117   303.35
2043.20    0.119   303.75
2043.30    0.120   304.15
2043.40    0.122   304.54
2043.50    0.124   304.91
2043.60    0.125   305.28
2043.70    0.127   305.63
2043.80    0.129   305.98
2043.90    0.130   306.32
2044.00    0.132   306.65
2044.10    0.133   306.97
2044.20    0.135   307.29
2044.30    0.137   307.60
2044.40    0.138   307.90
2044.50    0.140   308.19
2044.60    0.141   308.48
2044.70    0.143   308.76
2044.80    0.144   309.04
2044.90    0.146   309.31
2045.00    0.147   309.57
2045.10    0.149   309.83
2045.20    0.150   310.08
2045.30    0.152   310.33
2045.40    0.153   310.57
2045.50    0.155   310.81
2045.60    0.156   311.05
2045.70    0.158   311.28
2045.80    0.159   311.50
2045.90    0.161   311.73
2046.00    0.162   311.94
2046.10    0.164   312.16
2046.20    0.165   312.37
2046.30    0.166   312.58
2046.40    0.168   312.78
2046.50    0.169   312.98
2046.60    0.171   313.18
2046.70    0.172   313.37
2046.80    0.173   313.56
2046.90    0.175   313.75
2047.00    0.176   313.93
2047.10    0.177   314.12
2047.20    0.179   314.29
2047.30    0.180   314.47
2047.40    0.181   314.65
2047.50    0.183   314.82
2047.60    0.184   314.99
2047.70    0.185   315.15
2047.80    0.186   315.32
2047.90    0.188   315.48
2048.00    0.189   315.64
2048.10    0.190   315.80
2048.20    0.191   315.95
2048.30    0.193   316.11
2048.40    0.194   316.26
2048.50    0.195   316.41
2048.60    0.196   316.56
2048.70    0.198   316.71
2048.80    0.199   316.85
2048.90    0.200   316.99
2049.00    0.201   317.13
2049.10    0.202   317.27
2049.20    0.203   317.41
2049.30    0.205   317.55
2049.40    0.206   317.68
2049.50    0.207   317.82
2049.60    0.208   317.95
2049.70    0.209   318.08
2049.80    0.210   318.21
2049.90    0.211   318.34
2050.00    0.212   318.46
2050.10    0.213   318.59
2050.20    0.215   318.71
2050.30    0.216   318.83
2050.40    0.217   318.96
2050.50    0.218   319.08
2050.60    0.219   319.20
2050.70    0.220   319.31
2050.80    0.221   319.43
2050.90    0.222   319.55



 

Disclaimer
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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 17:15:29


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