Double Star Calculator - Orbit

Orbital Elements for A750
WDS: A750 WDS ID/Discoverer
P: 30.450 Orbital period (years)
a: 0.212 Semi-major axis (arcseconds)
i: 128.7 Inclination (degrees)
Ω: 65.9 Longitude of ascending node (degrees)
T: 2013.490 Epoch of periastron passage (year)
e: 0.723 Eccentricity
ω: 351.6 Longitude of periastron (degrees)
Start-Year: 2009.775 Year
End-Year: 2040.225 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for A750
Position: 205244.94+460647.7 Epoch-2000 right ascension and declination
WDS-ID: 20527+4607 WDS designation
Discoverer Code: A750 Discover designation and components
ADS number: 14396 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 103055 Hipparcos catalog number
V1: 9.11 Magnitude of the primary
V2: 10.26 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 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: Doc2013f Reference

Double Star Orbit for A750



WDS 6th Orbit including measures of A750

-- 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 A750
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.353   255.12
--------------------------
2009.78    0.174   219.28
2009.88    0.170   218.50
2009.97    0.166   217.69
2010.07    0.161   216.83
2010.17    0.157   215.92
2010.27    0.153   214.97
2010.37    0.149   213.96
2010.47    0.144   212.89
2010.57    0.140   211.75
2010.67    0.135   210.54
2010.77    0.131   209.24
2010.87    0.126   207.85
2010.97    0.121   206.35
2011.07    0.117   204.73
2011.17    0.112   202.97
2011.27    0.107   201.05
2011.37    0.102   198.96
2011.47    0.098   196.66
2011.57    0.093   194.13
2011.67    0.088   191.32
2011.77    0.083   188.19
2011.87    0.079   184.68
2011.97    0.074   180.75
2012.07    0.070   176.33
2012.17    0.066   171.33
2012.27    0.062   165.71
2012.37    0.059   159.41
2012.47    0.056   152.41
2012.57    0.054   144.75
2012.67    0.052   136.53
2012.77    0.051   127.92
2012.87    0.051   119.15
2012.97    0.052   110.46
2013.07    0.053   102.02
2013.17    0.054    93.97
2013.27    0.056    86.34
2013.37    0.057    79.10
2013.47    0.058    72.19
2013.57    0.059    65.51
2013.67    0.059    58.98
2013.77    0.060    52.52
2013.87    0.059    46.04
2013.97    0.059    39.53
2014.07    0.059    32.95
2014.17    0.059    26.32
2014.27    0.059    19.68
2014.37    0.059    13.09
2014.47    0.060     6.62
2014.57    0.061     0.35
2014.67    0.063   354.35
2014.77    0.065   348.66
2014.87    0.067   343.32
2014.97    0.069   338.36
2015.07    0.072   333.76
2015.17    0.075   329.52
2015.27    0.078   325.63
2015.37    0.082   322.05
2015.47    0.085   318.77
2015.57    0.089   315.75
2015.67    0.093   312.98
2015.77    0.097   310.42
2015.87    0.101   308.06
2015.97    0.104   305.88
2016.07    0.108   303.85
2016.17    0.112   301.97
2016.27    0.116   300.21
2016.37    0.120   298.57
2016.47    0.124   297.04
2016.57    0.128   295.60
2016.67    0.132   294.24
2016.77    0.136   292.97
2016.87    0.140   291.76
2016.97    0.144   290.62
2017.07    0.148   289.54
2017.17    0.151   288.51
2017.27    0.155   287.53
2017.37    0.159   286.60
2017.47    0.163   285.71
2017.57    0.166   284.86
2017.67    0.170   284.05
2017.77    0.173   283.27
2017.87    0.177   282.52
2017.97    0.180   281.80
2018.07    0.184   281.11
2018.17    0.187   280.44
2018.27    0.191   279.80
2018.37    0.194   279.18
2018.47    0.197   278.58
2018.57    0.201   278.00
2018.67    0.204   277.44
2018.77    0.207   276.90
2018.87    0.210   276.37
2018.97    0.213   275.86
2019.07    0.216   275.36
2019.17    0.219   274.88
2019.27    0.222   274.41
2019.37    0.225   273.95
2019.47    0.228   273.50
2019.57    0.231   273.07
2019.67    0.234   272.65
2019.77    0.237   272.23
2019.87    0.240   271.83
2019.97    0.242   271.43
2020.07    0.245   271.05
2020.17    0.248   270.67
2020.27    0.250   270.30
2020.37    0.253   269.94
2020.47    0.256   269.58
2020.57    0.258   269.23
2020.67    0.261   268.89
2020.77    0.263   268.56
2020.87    0.266   268.23
2020.97    0.268   267.91
2021.07    0.270   267.59
2021.17    0.273   267.28
2021.27    0.275   266.97
2021.37    0.277   266.67
2021.47    0.279   266.38
2021.57    0.282   266.08
2021.67    0.284   265.80
2021.77    0.286   265.51
2021.87    0.288   265.24
2021.97    0.290   264.96
2022.07    0.292   264.69
2022.17    0.294   264.42
2022.27    0.296   264.16
2022.37    0.298   263.90
2022.47    0.300   263.64
2022.57    0.302   263.39
2022.67    0.304   263.14
2022.77    0.306   262.89
2022.87    0.307   262.65
2022.97    0.309   262.41
2023.07    0.311   262.17
2023.17    0.313   261.93
2023.27    0.314   261.70
2023.37    0.316   261.47
2023.47    0.318   261.24
2023.57    0.319   261.01
2023.67    0.321   260.79
2023.77    0.322   260.57
2023.87    0.324   260.35
2023.97    0.325   260.13
2024.07    0.327   259.91
2024.17    0.328   259.70
2024.27    0.329   259.49
2024.37    0.331   259.27
2024.47    0.332   259.07
2024.57    0.333   258.86
2024.67    0.335   258.65
2024.77    0.336   258.45
2024.87    0.337   258.25
2024.97    0.338   258.04
2025.07    0.339   257.84
2025.17    0.341   257.65
2025.27    0.342   257.45
2025.37    0.343   257.25
2025.47    0.344   257.06
2025.57    0.345   256.86
2025.67    0.346   256.67
2025.77    0.347   256.48
2025.87    0.348   256.29
2025.97    0.349   256.10
2026.07    0.349   255.91
2026.17    0.350   255.72
2026.27    0.351   255.54
2026.37    0.352   255.35
2026.47    0.353   255.17
2026.57    0.353   254.98
2026.67    0.354   254.80
2026.77    0.355   254.62
2026.87    0.355   254.43
2026.97    0.356   254.25
2027.07    0.357   254.07
2027.17    0.357   253.89
2027.27    0.358   253.71
2027.37    0.358   253.53
2027.47    0.359   253.36
2027.57    0.359   253.18
2027.67    0.360   253.00
2027.77    0.360   252.82
2027.87    0.361   252.65
2027.97    0.361   252.47
2028.07    0.361   252.29
2028.17    0.362   252.12
2028.27    0.362   251.94
2028.37    0.362   251.77
2028.47    0.362   251.59
2028.57    0.363   251.42
2028.67    0.363   251.24
2028.77    0.363   251.07
2028.87    0.363   250.90
2028.97    0.363   250.72
2029.07    0.363   250.55
2029.17    0.363   250.37
2029.27    0.363   250.20
2029.37    0.363   250.03
2029.47    0.363   249.85
2029.57    0.363   249.68
2029.67    0.363   249.50
2029.77    0.363   249.33
2029.87    0.363   249.16
2029.97    0.363   248.98
2030.07    0.363   248.81
2030.17    0.362   248.63
2030.27    0.362   248.46
2030.37    0.362   248.28
2030.47    0.361   248.11
2030.57    0.361   247.93
2030.67    0.361   247.76
2030.77    0.360   247.58
2030.87    0.360   247.40
2030.97    0.359   247.22
2031.07    0.359   247.05
2031.17    0.359   246.87
2031.27    0.358   246.69
2031.37    0.357   246.51
2031.47    0.357   246.33
2031.57    0.356   246.15
2031.67    0.356   245.97
2031.77    0.355   245.79
2031.87    0.354   245.60
2031.97    0.353   245.42
2032.07    0.353   245.24
2032.17    0.352   245.05
2032.27    0.351   244.87
2032.37    0.350   244.68
2032.47    0.349   244.49
2032.57    0.348   244.30
2032.67    0.348   244.11
2032.77    0.347   243.92
2032.87    0.346   243.73
2032.97    0.345   243.54
2033.07    0.344   243.34
2033.17    0.342   243.15
2033.27    0.341   242.95
2033.37    0.340   242.76
2033.47    0.339   242.56
2033.57    0.338   242.36
2033.67    0.337   242.15
2033.77    0.335   241.95
2033.87    0.334   241.75
2033.97    0.333   241.54
2034.07    0.331   241.33
2034.17    0.330   241.12
2034.27    0.328   240.91
2034.37    0.327   240.70
2034.47    0.326   240.48
2034.57    0.324   240.26
2034.67    0.322   240.04
2034.77    0.321   239.82
2034.87    0.319   239.60
2034.97    0.318   239.37
2035.07    0.316   239.14
2035.17    0.314   238.91
2035.27    0.312   238.68
2035.37    0.311   238.44
2035.47    0.309   238.20
2035.57    0.307   237.96
2035.67    0.305   237.71
2035.77    0.303   237.46
2035.87    0.301   237.21
2035.97    0.299   236.96
2036.07    0.297   236.70
2036.17    0.295   236.44
2036.27    0.293   236.17
2036.37    0.291   235.90
2036.47    0.288   235.63
2036.57    0.286   235.35
2036.67    0.284   235.07
2036.77    0.282   234.78
2036.87    0.279   234.49
2036.97    0.277   234.19
2037.07    0.274   233.89
2037.17    0.272   233.58
2037.27    0.269   233.27
2037.37    0.267   232.95
2037.47    0.264   232.62
2037.57    0.262   232.29
2037.67    0.259   231.95
2037.77    0.256   231.61
2037.87    0.253   231.25
2037.97    0.251   230.89
2038.07    0.248   230.52
2038.17    0.245   230.14
2038.27    0.242   229.76
2038.37    0.239   229.36
2038.47    0.236   228.95
2038.57    0.233   228.53
2038.67    0.229   228.10
2038.77    0.226   227.66
2038.87    0.223   227.20
2038.97    0.220   226.74
2039.07    0.216   226.25
2039.17    0.213   225.75
2039.27    0.209   225.24
2039.37    0.206   224.71
2039.47    0.202   224.16
2039.57    0.199   223.59
2039.67    0.195   223.00
2039.77    0.191   222.38
2039.87    0.188   221.74
2039.97    0.184   221.07
2040.07    0.180   220.38
2040.17    0.176   219.65



 

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 18:19:43


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