Double Star Calculator - Orbit

Orbital Elements for HDS2734AA,AB
WDS: HDS2734AA,AB WDS ID/Discoverer
P: 36.830 Orbital period (years)
a: 0.296 Semi-major axis (arcseconds)
i: 0.0 Inclination (degrees)
Ω: 19.85 Longitude of ascending node (degrees)
T: 2020.100 Epoch of periastron passage (year)
e: 0.625 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 2006.585 Year
End-Year: 2043.415 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HDS2734AA,AB
Position: 191926.50-013657.7 Epoch-2000 right ascension and declination
WDS-ID: 19194-0136 WDS designation
Discoverer Code: HDS2734AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 181148 HD catalog number
Hipparcos number: 94960 Hipparcos catalog number
V1: 10.97 Magnitude of the primary
V2: 11.37 Magnitude of the secondary
Equinox: Equinox
Date: 2018 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: Tok2019c Reference

Double Star Orbit for HDS2734AA,AB



WDS 6th Orbit including measures of HDS2734AA,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 HDS2734AA,AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.322   154.53
--------------------------
2006.59    0.456   214.52
2006.68    0.455   214.84
2006.78    0.454   215.16
2006.88    0.453   215.49
2006.98    0.452   215.81
2007.08    0.451   216.14
2007.18    0.450   216.47
2007.28    0.449   216.80
2007.38    0.447   217.14
2007.48    0.446   217.47
2007.58    0.445   217.81
2007.68    0.444   218.15
2007.78    0.442   218.49
2007.88    0.441   218.83
2007.98    0.440   219.17
2008.08    0.438   219.52
2008.18    0.437   219.87
2008.28    0.436   220.22
2008.38    0.434   220.57
2008.48    0.433   220.93
2008.58    0.431   221.29
2008.68    0.430   221.65
2008.78    0.428   222.01
2008.88    0.427   222.38
2008.98    0.425   222.75
2009.08    0.424   223.12
2009.18    0.422   223.49
2009.28    0.420   223.87
2009.38    0.419   224.25
2009.48    0.417   224.63
2009.58    0.415   225.02
2009.68    0.414   225.41
2009.78    0.412   225.80
2009.88    0.410   226.20
2009.98    0.408   226.60
2010.08    0.406   227.00
2010.18    0.405   227.41
2010.28    0.403   227.82
2010.38    0.401   228.23
2010.48    0.399   228.65
2010.58    0.397   229.07
2010.68    0.395   229.50
2010.78    0.393   229.93
2010.88    0.391   230.36
2010.98    0.389   230.80
2011.08    0.387   231.25
2011.18    0.385   231.70
2011.28    0.382   232.15
2011.38    0.380   232.61
2011.48    0.378   233.08
2011.58    0.376   233.55
2011.68    0.374   234.02
2011.78    0.371   234.51
2011.88    0.369   235.00
2011.98    0.367   235.49
2012.08    0.364   235.99
2012.18    0.362   236.50
2012.28    0.359   237.01
2012.38    0.357   237.53
2012.48    0.354   238.06
2012.58    0.352   238.60
2012.68    0.349   239.14
2012.78    0.347   239.69
2012.88    0.344   240.25
2012.98    0.342   240.82
2013.08    0.339   241.40
2013.18    0.336   241.99
2013.28    0.333   242.58
2013.38    0.331   243.19
2013.48    0.328   243.81
2013.58    0.325   244.43
2013.68    0.322   245.07
2013.78    0.319   245.72
2013.88    0.316   246.38
2013.98    0.313   247.06
2014.08    0.310   247.74
2014.18    0.307   248.44
2014.28    0.304   249.16
2014.38    0.301   249.89
2014.48    0.298   250.63
2014.58    0.295   251.39
2014.68    0.292   252.17
2014.78    0.289   252.96
2014.88    0.285   253.77
2014.98    0.282   254.60
2015.08    0.279   255.45
2015.18    0.275   256.32
2015.28    0.272   257.21
2015.38    0.269   258.13
2015.48    0.265   259.06
2015.58    0.262   260.03
2015.68    0.258   261.02
2015.78    0.255   262.03
2015.88    0.251   263.08
2015.98    0.247   264.16
2016.08    0.244   265.26
2016.18    0.240   266.41
2016.28    0.236   267.59
2016.38    0.233   268.80
2016.48    0.229   270.06
2016.58    0.225   271.36
2016.68    0.221   272.70
2016.78    0.217   274.09
2016.88    0.213   275.53
2016.98    0.209   277.03
2017.08    0.205   278.58
2017.18    0.201   280.20
2017.28    0.197   281.88
2017.38    0.193   283.63
2017.48    0.189   285.45
2017.58    0.185   287.36
2017.68    0.181   289.34
2017.78    0.177   291.42
2017.88    0.173   293.60
2017.98    0.169   295.88
2018.08    0.165   298.27
2018.18    0.161   300.78
2018.28    0.157   303.41
2018.38    0.153   306.18
2018.48    0.150   309.09
2018.58    0.146   312.16
2018.68    0.142   315.39
2018.78    0.138   318.79
2018.88    0.135   322.36
2018.98    0.132   326.12
2019.08    0.129   330.08
2019.18    0.126   334.22
2019.28    0.123   338.56
2019.38    0.120   343.10
2019.48    0.118   347.81
2019.58    0.116   352.71
2019.68    0.114   357.76
2019.78    0.113     2.95
2019.88    0.112     8.25
2019.98    0.111    13.62
2020.08    0.111    19.04
2020.18    0.111    24.46
2020.28    0.112    29.85
2020.38    0.113    35.17
2020.48    0.114    40.40
2020.58    0.115    45.49
2020.68    0.117    50.43
2020.78    0.119    55.21
2020.88    0.122    59.80
2020.98    0.125    64.20
2021.08    0.128    68.40
2021.18    0.131    72.41
2021.28    0.134    76.23
2021.38    0.137    79.86
2021.48    0.141    83.31
2021.58    0.145    86.59
2021.68    0.148    89.70
2021.78    0.152    92.66
2021.88    0.156    95.47
2021.98    0.160    98.15
2022.08    0.164   100.69
2022.18    0.168   103.12
2022.28    0.172   105.43
2022.38    0.176   107.64
2022.48    0.180   109.74
2022.58    0.184   111.76
2022.68    0.188   113.68
2022.78    0.192   115.53
2022.88    0.196   117.30
2022.98    0.200   119.00
2023.08    0.204   120.64
2023.18    0.208   122.21
2023.28    0.212   123.72
2023.38    0.216   125.18
2023.48    0.220   126.59
2023.58    0.224   127.95
2023.68    0.228   129.26
2023.78    0.231   130.53
2023.88    0.235   131.75
2023.98    0.239   132.94
2024.08    0.243   134.10
2024.18    0.246   135.21
2024.28    0.250   136.30
2024.38    0.254   137.36
2024.48    0.257   138.38
2024.58    0.261   139.38
2024.68    0.264   140.35
2024.78    0.268   141.29
2024.88    0.271   142.22
2024.98    0.274   143.11
2025.08    0.278   143.99
2025.18    0.281   144.85
2025.28    0.284   145.68
2025.38    0.288   146.50
2025.48    0.291   147.30
2025.58    0.294   148.08
2025.68    0.297   148.84
2025.78    0.300   149.59
2025.88    0.304   150.33
2025.98    0.307   151.04
2026.08    0.310   151.75
2026.18    0.313   152.44
2026.28    0.316   153.12
2026.38    0.318   153.78
2026.48    0.321   154.44
2026.58    0.324   155.08
2026.68    0.327   155.71
2026.78    0.330   156.33
2026.88    0.333   156.94
2026.98    0.335   157.54
2027.08    0.338   158.13
2027.18    0.341   158.71
2027.28    0.343   159.28
2027.38    0.346   159.84
2027.48    0.349   160.39
2027.58    0.351   160.94
2027.68    0.354   161.48
2027.78    0.356   162.01
2027.88    0.359   162.53
2027.98    0.361   163.05
2028.08    0.363   163.56
2028.18    0.366   164.06
2028.28    0.368   164.56
2028.38    0.371   165.05
2028.48    0.373   165.53
2028.58    0.375   166.01
2028.68    0.377   166.48
2028.78    0.380   166.95
2028.88    0.382   167.41
2028.98    0.384   167.87
2029.08    0.386   168.32
2029.18    0.388   168.76
2029.28    0.390   169.20
2029.38    0.392   169.64
2029.48    0.394   170.07
2029.58    0.396   170.50
2029.68    0.398   170.93
2029.78    0.400   171.35
2029.88    0.402   171.76
2029.98    0.404   172.17
2030.08    0.406   172.58
2030.18    0.408   172.98
2030.28    0.409   173.38
2030.38    0.411   173.78
2030.48    0.413   174.18
2030.58    0.415   174.57
2030.68    0.416   174.95
2030.78    0.418   175.34
2030.88    0.420   175.72
2030.98    0.421   176.09
2031.08    0.423   176.47
2031.18    0.425   176.84
2031.28    0.426   177.21
2031.38    0.428   177.58
2031.48    0.429   177.94
2031.58    0.431   178.30
2031.68    0.432   178.66
2031.78    0.434   179.02
2031.88    0.435   179.37
2031.98    0.437   179.72
2032.08    0.438   180.07
2032.18    0.439   180.42
2032.28    0.441   180.77
2032.38    0.442   181.11
2032.48    0.443   181.45
2032.58    0.445   181.79
2032.68    0.446   182.13
2032.78    0.447   182.46
2032.88    0.448   182.80
2032.98    0.449   183.13
2033.08    0.450   183.46
2033.18    0.452   183.79
2033.28    0.453   184.12
2033.38    0.454   184.44
2033.48    0.455   184.76
2033.58    0.456   185.09
2033.68    0.457   185.41
2033.78    0.458   185.73
2033.88    0.459   186.05
2033.98    0.460   186.36
2034.08    0.461   186.68
2034.18    0.462   186.99
2034.28    0.463   187.31
2034.38    0.463   187.62
2034.48    0.464   187.93
2034.58    0.465   188.24
2034.68    0.466   188.55
2034.78    0.467   188.85
2034.88    0.467   189.16
2034.98    0.468   189.47
2035.08    0.469   189.77
2035.18    0.470   190.07
2035.28    0.470   190.38
2035.38    0.471   190.68
2035.48    0.472   190.98
2035.58    0.472   191.28
2035.68    0.473   191.58
2035.78    0.473   191.88
2035.88    0.474   192.17
2035.98    0.474   192.47
2036.08    0.475   192.77
2036.18    0.475   193.06
2036.28    0.476   193.36
2036.38    0.476   193.66
2036.48    0.477   193.95
2036.58    0.477   194.24
2036.68    0.478   194.54
2036.78    0.478   194.83
2036.88    0.478   195.12
2036.98    0.479   195.41
2037.08    0.479   195.71
2037.18    0.479   196.00
2037.28    0.479   196.29
2037.38    0.480   196.58
2037.48    0.480   196.87
2037.58    0.480   197.16
2037.68    0.480   197.45
2037.78    0.480   197.74
2037.88    0.481   198.03
2037.98    0.481   198.32
2038.08    0.481   198.61
2038.18    0.481   198.90
2038.28    0.481   199.19
2038.38    0.481   199.47
2038.48    0.481   199.76
2038.58    0.481   200.05
2038.68    0.481   200.34
2038.78    0.481   200.63
2038.88    0.481   200.92
2038.98    0.481   201.21
2039.08    0.481   201.50
2039.18    0.481   201.79
2039.28    0.480   202.08
2039.38    0.480   202.37
2039.48    0.480   202.66
2039.58    0.480   202.95
2039.68    0.480   203.24
2039.78    0.479   203.53
2039.88    0.479   203.82
2039.98    0.479   204.11
2040.08    0.478   204.40
2040.18    0.478   204.69
2040.28    0.478   204.99
2040.38    0.477   205.28
2040.48    0.477   205.57
2040.58    0.477   205.87
2040.68    0.476   206.16
2040.78    0.476   206.46
2040.88    0.475   206.75
2040.98    0.475   207.05
2041.08    0.474   207.35
2041.18    0.474   207.64
2041.28    0.473   207.94
2041.38    0.473   208.24
2041.48    0.472   208.54
2041.58    0.471   208.84
2041.68    0.471   209.14
2041.78    0.470   209.45
2041.88    0.469   209.75
2041.98    0.469   210.05
2042.08    0.468   210.36
2042.18    0.467   210.66
2042.28    0.466   210.97
2042.38    0.466   211.28
2042.48    0.465   211.59
2042.58    0.464   211.90
2042.68    0.463   212.21
2042.78    0.462   212.52
2042.88    0.461   212.83
2042.98    0.460   213.15
2043.08    0.459   213.46
2043.18    0.459   213.78
2043.28    0.458   214.10
2043.38    0.457   214.42



 

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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 18:02:57


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