Double Star Calculator - Orbit

Orbital Elements for BU1270
WDS: BU1270 WDS ID/Discoverer
P: 38.740 Orbital period (years)
a: 0.195 Semi-major axis (arcseconds)
i: 26.6 Inclination (degrees)
Ω: 116.6 Longitude of ascending node (degrees)
T: 1989.960 Epoch of periastron passage (year)
e: 0.435 Eccentricity
ω: 40.3 Longitude of periastron (degrees)
Start-Year: 2005.63 Year
End-Year: 2044.37 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU1270
Position: 140343.26+082913.3 Epoch-2000 right ascension and declination
WDS-ID: 14037+0829 WDS designation
Discoverer Code: BU1270 Discover designation and components
ADS number: 9094 Aitken Double Star catalog
HD number: 122769 HD catalog number
Hipparcos number: 68697 Hipparcos catalog number
V1: 8.15 Magnitude of the primary
V2: 8.78 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2003 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: USN2006b Reference

Double Star Orbit for BU1270



WDS 6th Orbit including measures of BU1270

-- 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 BU1270
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.125   105.40
--------------------------
2005.63    0.267   319.23
2005.73    0.268   319.62
2005.83    0.268   320.02
2005.93    0.268   320.42
2006.03    0.268   320.81
2006.13    0.268   321.21
2006.23    0.269   321.60
2006.33    0.269   322.00
2006.43    0.269   322.39
2006.53    0.269   322.78
2006.63    0.269   323.18
2006.73    0.269   323.57
2006.83    0.269   323.96
2006.93    0.269   324.35
2007.03    0.270   324.74
2007.13    0.270   325.13
2007.23    0.270   325.53
2007.33    0.270   325.92
2007.43    0.270   326.31
2007.53    0.270   326.70
2007.63    0.270   327.09
2007.73    0.270   327.48
2007.83    0.270   327.87
2007.93    0.270   328.26
2008.03    0.270   328.66
2008.13    0.269   329.05
2008.23    0.269   329.44
2008.33    0.269   329.83
2008.43    0.269   330.22
2008.53    0.269   330.62
2008.63    0.269   331.01
2008.73    0.269   331.40
2008.83    0.269   331.80
2008.93    0.269   332.19
2009.03    0.268   332.59
2009.13    0.268   332.98
2009.23    0.268   333.38
2009.33    0.268   333.77
2009.43    0.268   334.17
2009.53    0.267   334.57
2009.63    0.267   334.97
2009.73    0.267   335.36
2009.83    0.267   335.76
2009.93    0.266   336.16
2010.03    0.266   336.57
2010.13    0.266   336.97
2010.23    0.266   337.37
2010.33    0.265   337.77
2010.43    0.265   338.18
2010.53    0.265   338.59
2010.63    0.264   338.99
2010.73    0.264   339.40
2010.83    0.264   339.81
2010.93    0.263   340.22
2011.03    0.263   340.63
2011.13    0.262   341.04
2011.23    0.262   341.46
2011.33    0.262   341.87
2011.43    0.261   342.29
2011.53    0.261   342.71
2011.63    0.260   343.13
2011.73    0.260   343.55
2011.83    0.259   343.97
2011.93    0.259   344.39
2012.03    0.258   344.82
2012.13    0.258   345.24
2012.23    0.257   345.67
2012.33    0.257   346.10
2012.43    0.256   346.53
2012.53    0.256   346.97
2012.63    0.255   347.40
2012.73    0.255   347.84
2012.83    0.254   348.28
2012.93    0.254   348.72
2013.03    0.253   349.16
2013.13    0.253   349.61
2013.23    0.252   350.06
2013.33    0.251   350.51
2013.43    0.251   350.96
2013.53    0.250   351.41
2013.63    0.249   351.87
2013.73    0.249   352.32
2013.83    0.248   352.79
2013.93    0.248   353.25
2014.03    0.247   353.71
2014.13    0.246   354.18
2014.23    0.246   354.65
2014.33    0.245   355.13
2014.43    0.244   355.60
2014.53    0.243   356.08
2014.63    0.243   356.56
2014.73    0.242   357.05
2014.83    0.241   357.53
2014.93    0.240   358.03
2015.03    0.240   358.52
2015.13    0.239   359.02
2015.23    0.238   359.51
2015.33    0.237     0.02
2015.43    0.237     0.52
2015.53    0.236     1.03
2015.63    0.235     1.55
2015.73    0.234     2.06
2015.83    0.233     2.58
2015.93    0.233     3.11
2016.03    0.232     3.63
2016.13    0.231     4.17
2016.23    0.230     4.70
2016.33    0.229     5.24
2016.43    0.228     5.78
2016.53    0.228     6.33
2016.63    0.227     6.88
2016.73    0.226     7.44
2016.83    0.225     8.00
2016.93    0.224     8.56
2017.03    0.223     9.13
2017.13    0.222     9.71
2017.23    0.221    10.28
2017.33    0.220    10.87
2017.43    0.219    11.45
2017.53    0.219    12.05
2017.63    0.218    12.65
2017.73    0.217    13.25
2017.83    0.216    13.86
2017.93    0.215    14.47
2018.03    0.214    15.09
2018.13    0.213    15.72
2018.23    0.212    16.35
2018.33    0.211    16.98
2018.43    0.210    17.63
2018.53    0.209    18.27
2018.63    0.208    18.93
2018.73    0.207    19.59
2018.83    0.206    20.26
2018.93    0.205    20.93
2019.03    0.204    21.61
2019.13    0.203    22.30
2019.23    0.202    22.99
2019.33    0.201    23.70
2019.43    0.200    24.40
2019.53    0.199    25.12
2019.63    0.198    25.84
2019.73    0.197    26.57
2019.83    0.196    27.31
2019.93    0.195    28.06
2020.03    0.194    28.81
2020.13    0.193    29.58
2020.23    0.191    30.35
2020.33    0.190    31.13
2020.43    0.189    31.92
2020.53    0.188    32.72
2020.63    0.187    33.52
2020.73    0.186    34.34
2020.83    0.185    35.16
2020.93    0.184    36.00
2021.03    0.183    36.85
2021.13    0.182    37.70
2021.23    0.181    38.57
2021.33    0.180    39.44
2021.43    0.179    40.33
2021.53    0.178    41.22
2021.63    0.176    42.13
2021.73    0.175    43.05
2021.83    0.174    43.98
2021.93    0.173    44.93
2022.03    0.172    45.88
2022.13    0.171    46.85
2022.23    0.170    47.82
2022.33    0.169    48.82
2022.43    0.168    49.82
2022.53    0.167    50.84
2022.63    0.166    51.87
2022.73    0.164    52.91
2022.83    0.163    53.97
2022.93    0.162    55.04
2023.03    0.161    56.13
2023.13    0.160    57.23
2023.23    0.159    58.35
2023.33    0.158    59.48
2023.43    0.157    60.63
2023.53    0.156    61.79
2023.63    0.155    62.97
2023.73    0.154    64.17
2023.83    0.153    65.38
2023.93    0.152    66.61
2024.03    0.150    67.86
2024.13    0.149    69.13
2024.23    0.148    70.41
2024.33    0.147    71.71
2024.43    0.146    73.03
2024.53    0.145    74.37
2024.63    0.144    75.73
2024.73    0.143    77.12
2024.83    0.142    78.52
2024.93    0.141    79.94
2025.03    0.140    81.38
2025.13    0.139    82.85
2025.23    0.138    84.34
2025.33    0.137    85.85
2025.43    0.136    87.38
2025.53    0.135    88.94
2025.63    0.134    90.52
2025.73    0.133    92.13
2025.83    0.131    93.76
2025.93    0.130    95.42
2026.03    0.129    97.10
2026.13    0.128    98.82
2026.23    0.127   100.56
2026.33    0.126   102.32
2026.43    0.125   104.12
2026.53    0.124   105.95
2026.63    0.123   107.80
2026.73    0.122   109.69
2026.83    0.121   111.61
2026.93    0.120   113.56
2027.03    0.119   115.55
2027.13    0.118   117.57
2027.23    0.117   119.62
2027.33    0.116   121.70
2027.43    0.115   123.83
2027.53    0.114   125.98
2027.63    0.113   128.17
2027.73    0.113   130.40
2027.83    0.112   132.66
2027.93    0.111   134.96
2028.03    0.110   137.29
2028.13    0.109   139.66
2028.23    0.108   142.06
2028.33    0.108   144.50
2028.43    0.107   146.96
2028.53    0.106   149.46
2028.63    0.106   151.99
2028.73    0.105   154.54
2028.83    0.105   157.12
2028.93    0.104   159.72
2029.03    0.104   162.34
2029.13    0.104   164.97
2029.23    0.104   167.62
2029.33    0.103   170.27
2029.43    0.103   172.93
2029.53    0.103   175.60
2029.63    0.104   178.25
2029.73    0.104   180.90
2029.83    0.104   183.54
2029.93    0.104   186.17
2030.03    0.105   188.77
2030.13    0.105   191.35
2030.23    0.106   193.90
2030.33    0.107   196.42
2030.43    0.107   198.90
2030.53    0.108   201.35
2030.63    0.109   203.76
2030.73    0.110   206.13
2030.83    0.111   208.46
2030.93    0.112   210.73
2031.03    0.114   212.97
2031.13    0.115   215.15
2031.23    0.116   217.29
2031.33    0.117   219.37
2031.43    0.119   221.41
2031.53    0.120   223.40
2031.63    0.122   225.35
2031.73    0.123   227.24
2031.83    0.125   229.09
2031.93    0.127   230.89
2032.03    0.128   232.64
2032.13    0.130   234.35
2032.23    0.132   236.02
2032.33    0.133   237.64
2032.43    0.135   239.22
2032.53    0.137   240.76
2032.63    0.138   242.27
2032.73    0.140   243.73
2032.83    0.142   245.16
2032.93    0.144   246.55
2033.03    0.146   247.91
2033.13    0.147   249.24
2033.23    0.149   250.53
2033.33    0.151   251.79
2033.43    0.153   253.03
2033.53    0.155   254.23
2033.63    0.156   255.41
2033.73    0.158   256.55
2033.83    0.160   257.68
2033.93    0.162   258.78
2034.03    0.164   259.85
2034.13    0.165   260.90
2034.23    0.167   261.93
2034.33    0.169   262.94
2034.43    0.171   263.93
2034.53    0.172   264.89
2034.63    0.174   265.84
2034.73    0.176   266.77
2034.83    0.178   267.68
2034.93    0.179   268.58
2035.03    0.181   269.45
2035.13    0.183   270.32
2035.23    0.184   271.16
2035.33    0.186   271.99
2035.43    0.187   272.81
2035.53    0.189   273.61
2035.63    0.191   274.40
2035.73    0.192   275.18
2035.83    0.194   275.94
2035.93    0.195   276.70
2036.03    0.197   277.44
2036.13    0.198   278.17
2036.23    0.200   278.88
2036.33    0.201   279.59
2036.43    0.203   280.29
2036.53    0.204   280.98
2036.63    0.206   281.65
2036.73    0.207   282.32
2036.83    0.208   282.98
2036.93    0.210   283.63
2037.03    0.211   284.27
2037.13    0.212   284.91
2037.23    0.214   285.53
2037.33    0.215   286.15
2037.43    0.216   286.76
2037.53    0.218   287.37
2037.63    0.219   287.96
2037.73    0.220   288.55
2037.83    0.221   289.14
2037.93    0.223   289.71
2038.03    0.224   290.29
2038.13    0.225   290.85
2038.23    0.226   291.41
2038.33    0.227   291.96
2038.43    0.228   292.51
2038.53    0.230   293.05
2038.63    0.231   293.59
2038.73    0.232   294.12
2038.83    0.233   294.65
2038.93    0.234   295.17
2039.03    0.235   295.69
2039.13    0.236   296.21
2039.23    0.237   296.72
2039.33    0.238   297.22
2039.43    0.239   297.72
2039.53    0.240   298.22
2039.63    0.241   298.71
2039.73    0.242   299.20
2039.83    0.242   299.69
2039.93    0.243   300.17
2040.03    0.244   300.65
2040.13    0.245   301.12
2040.23    0.246   301.60
2040.33    0.247   302.07
2040.43    0.247   302.53
2040.53    0.248   302.99
2040.63    0.249   303.45
2040.73    0.250   303.91
2040.83    0.251   304.37
2040.93    0.251   304.82
2041.03    0.252   305.27
2041.13    0.253   305.71
2041.23    0.253   306.16
2041.33    0.254   306.60
2041.43    0.255   307.04
2041.53    0.255   307.48
2041.63    0.256   307.91
2041.73    0.257   308.35
2041.83    0.257   308.78
2041.93    0.258   309.21
2042.03    0.258   309.63
2042.13    0.259   310.06
2042.23    0.259   310.48
2042.33    0.260   310.91
2042.43    0.260   311.33
2042.53    0.261   311.75
2042.63    0.261   312.16
2042.73    0.262   312.58
2042.83    0.262   312.99
2042.93    0.263   313.41
2043.03    0.263   313.82
2043.13    0.264   314.23
2043.23    0.264   314.64
2043.33    0.264   315.05
2043.43    0.265   315.45
2043.53    0.265   315.86
2043.63    0.265   316.26
2043.73    0.266   316.67
2043.83    0.266   317.07
2043.93    0.266   317.47
2044.03    0.267   317.87
2044.13    0.267   318.27
2044.23    0.267   318.67
2044.33    0.267   319.07






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 17:02:04



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