Double Star Calculator - Orbit

Orbital Elements for BU798AB
WDS: BU798AB WDS ID/Discoverer
P: 61.070 Orbital period (years)
a: 0.351 Semi-major axis (arcseconds)
i: 83.5 Inclination (degrees)
Ω: 171.0 Longitude of ascending node (degrees)
T: 1980.950 Epoch of periastron passage (year)
e: 0.457 Eccentricity
ω: 213.7 Longitude of periastron (degrees)
Start-Year: 1994.465 Year
End-Year: 2055.535 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU798AB
Position: 130402.74-173729.9 Epoch-2000 right ascension and declination
WDS-ID: 13040-1738 WDS designation
Discoverer Code: BU798AB Discover designation and components
ADS number: 8764 Aitken Double Star catalog
HD number: 113460 HD catalog number
Hipparcos number: 63754 Hipparcos catalog number
V1: 9.16 Magnitude of the primary
V2: 9.67 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2024 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: Doc2024c Reference

Double Star Orbit for BU798AB



WDS 6th Orbit including measures of BU798AB

-- 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 BU798AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.111   195.53
--------------------------
1994.46    0.376   169.08
1994.56    0.379   169.13
1994.66    0.381   169.18
1994.76    0.383   169.23
1994.86    0.385   169.28
1994.96    0.387   169.33
1995.06    0.389   169.38
1995.16    0.391   169.42
1995.26    0.393   169.47
1995.36    0.395   169.52
1995.46    0.397   169.57
1995.56    0.399   169.61
1995.66    0.401   169.66
1995.76    0.402   169.70
1995.86    0.404   169.75
1995.96    0.406   169.79
1996.06    0.408   169.84
1996.16    0.409   169.88
1996.26    0.411   169.92
1996.36    0.413   169.97
1996.46    0.414   170.01
1996.56    0.416   170.05
1996.66    0.418   170.09
1996.76    0.419   170.14
1996.86    0.421   170.18
1996.96    0.422   170.22
1997.06    0.424   170.26
1997.16    0.425   170.30
1997.26    0.427   170.34
1997.36    0.428   170.38
1997.46    0.430   170.42
1997.56    0.431   170.46
1997.66    0.432   170.50
1997.76    0.434   170.54
1997.86    0.435   170.58
1997.96    0.436   170.61
1998.06    0.437   170.65
1998.16    0.439   170.69
1998.26    0.440   170.73
1998.36    0.441   170.77
1998.46    0.442   170.80
1998.56    0.443   170.84
1998.66    0.445   170.88
1998.76    0.446   170.92
1998.86    0.447   170.95
1998.96    0.448   170.99
1999.06    0.449   171.03
1999.16    0.450   171.06
1999.26    0.451   171.10
1999.36    0.452   171.13
1999.46    0.453   171.17
1999.56    0.454   171.20
1999.66    0.454   171.24
1999.76    0.455   171.28
1999.86    0.456   171.31
1999.96    0.457   171.35
2000.06    0.458   171.38
2000.16    0.459   171.42
2000.26    0.459   171.45
2000.36    0.460   171.49
2000.46    0.461   171.52
2000.56    0.461   171.55
2000.66    0.462   171.59
2000.76    0.463   171.62
2000.86    0.463   171.66
2000.96    0.464   171.69
2001.06    0.465   171.72
2001.16    0.465   171.76
2001.26    0.466   171.79
2001.36    0.466   171.83
2001.46    0.467   171.86
2001.56    0.467   171.89
2001.66    0.468   171.93
2001.76    0.468   171.96
2001.86    0.469   171.99
2001.96    0.469   172.03
2002.06    0.469   172.06
2002.16    0.470   172.09
2002.26    0.470   172.13
2002.36    0.471   172.16
2002.46    0.471   172.19
2002.56    0.471   172.22
2002.66    0.471   172.26
2002.76    0.472   172.29
2002.86    0.472   172.32
2002.96    0.472   172.36
2003.06    0.472   172.39
2003.16    0.472   172.42
2003.26    0.473   172.45
2003.36    0.473   172.49
2003.46    0.473   172.52
2003.56    0.473   172.55
2003.66    0.473   172.59
2003.76    0.473   172.62
2003.86    0.473   172.65
2003.96    0.473   172.68
2004.06    0.473   172.72
2004.16    0.473   172.75
2004.26    0.473   172.78
2004.36    0.473   172.81
2004.46    0.473   172.85
2004.56    0.473   172.88
2004.66    0.473   172.91
2004.76    0.473   172.94
2004.86    0.473   172.98
2004.96    0.472   173.01
2005.06    0.472   173.04
2005.16    0.472   173.08
2005.26    0.472   173.11
2005.36    0.472   173.14
2005.46    0.471   173.17
2005.56    0.471   173.21
2005.66    0.471   173.24
2005.76    0.471   173.27
2005.86    0.470   173.31
2005.96    0.470   173.34
2006.06    0.470   173.37
2006.16    0.469   173.41
2006.26    0.469   173.44
2006.36    0.468   173.47
2006.46    0.468   173.51
2006.56    0.468   173.54
2006.66    0.467   173.57
2006.76    0.467   173.61
2006.86    0.466   173.64
2006.96    0.466   173.67
2007.06    0.465   173.71
2007.16    0.465   173.74
2007.26    0.464   173.77
2007.36    0.464   173.81
2007.46    0.463   173.84
2007.56    0.462   173.88
2007.66    0.462   173.91
2007.76    0.461   173.95
2007.86    0.460   173.98
2007.96    0.460   174.01
2008.06    0.459   174.05
2008.16    0.458   174.08
2008.26    0.458   174.12
2008.36    0.457   174.15
2008.46    0.456   174.19
2008.56    0.456   174.22
2008.66    0.455   174.26
2008.76    0.454   174.29
2008.86    0.453   174.33
2008.96    0.452   174.37
2009.06    0.451   174.40
2009.16    0.451   174.44
2009.26    0.450   174.47
2009.36    0.449   174.51
2009.46    0.448   174.55
2009.56    0.447   174.58
2009.66    0.446   174.62
2009.76    0.445   174.66
2009.86    0.444   174.69
2009.96    0.443   174.73
2010.06    0.442   174.77
2010.16    0.441   174.81
2010.26    0.440   174.84
2010.36    0.439   174.88
2010.46    0.438   174.92
2010.56    0.437   174.96
2010.66    0.436   175.00
2010.76    0.435   175.03
2010.86    0.434   175.07
2010.96    0.433   175.11
2011.06    0.432   175.15
2011.16    0.430   175.19
2011.26    0.429   175.23
2011.36    0.428   175.27
2011.46    0.427   175.31
2011.56    0.426   175.35
2011.66    0.424   175.39
2011.76    0.423   175.43
2011.86    0.422   175.47
2011.96    0.421   175.51
2012.06    0.419   175.55
2012.16    0.418   175.60
2012.26    0.417   175.64
2012.36    0.416   175.68
2012.46    0.414   175.72
2012.56    0.413   175.77
2012.66    0.411   175.81
2012.76    0.410   175.85
2012.86    0.409   175.90
2012.96    0.407   175.94
2013.06    0.406   175.98
2013.16    0.404   176.03
2013.26    0.403   176.07
2013.36    0.402   176.12
2013.46    0.400   176.16
2013.56    0.399   176.21
2013.66    0.397   176.26
2013.76    0.396   176.30
2013.86    0.394   176.35
2013.96    0.392   176.40
2014.06    0.391   176.44
2014.16    0.389   176.49
2014.26    0.388   176.54
2014.36    0.386   176.59
2014.46    0.385   176.64
2014.56    0.383   176.69
2014.66    0.381   176.74
2014.76    0.380   176.79
2014.86    0.378   176.84
2014.96    0.376   176.89
2015.06    0.375   176.94
2015.16    0.373   177.00
2015.26    0.371   177.05
2015.36    0.370   177.10
2015.46    0.368   177.16
2015.56    0.366   177.21
2015.66    0.364   177.26
2015.76    0.363   177.32
2015.86    0.361   177.38
2015.96    0.359   177.43
2016.06    0.357   177.49
2016.16    0.355   177.55
2016.26    0.353   177.61
2016.36    0.352   177.66
2016.46    0.350   177.72
2016.56    0.348   177.78
2016.66    0.346   177.84
2016.76    0.344   177.91
2016.86    0.342   177.97
2016.96    0.340   178.03
2017.06    0.338   178.09
2017.16    0.336   178.16
2017.26    0.334   178.22
2017.36    0.332   178.29
2017.46    0.330   178.36
2017.56    0.328   178.42
2017.66    0.326   178.49
2017.76    0.324   178.56
2017.86    0.322   178.63
2017.96    0.320   178.70
2018.06    0.318   178.77
2018.16    0.316   178.85
2018.26    0.314   178.92
2018.36    0.312   178.99
2018.46    0.310   179.07
2018.56    0.308   179.15
2018.66    0.306   179.22
2018.76    0.304   179.30
2018.86    0.301   179.38
2018.96    0.299   179.46
2019.06    0.297   179.55
2019.16    0.295   179.63
2019.26    0.293   179.71
2019.36    0.291   179.80
2019.46    0.288   179.89
2019.56    0.286   179.98
2019.66    0.284   180.07
2019.76    0.282   180.16
2019.86    0.279   180.25
2019.96    0.277   180.35
2020.06    0.275   180.44
2020.16    0.273   180.54
2020.26    0.270   180.64
2020.36    0.268   180.74
2020.46    0.266   180.84
2020.56    0.263   180.95
2020.66    0.261   181.05
2020.76    0.259   181.16
2020.86    0.256   181.27
2020.96    0.254   181.38
2021.06    0.251   181.50
2021.16    0.249   181.62
2021.26    0.247   181.73
2021.36    0.244   181.86
2021.46    0.242   181.98
2021.56    0.239   182.11
2021.66    0.237   182.23
2021.76    0.235   182.37
2021.86    0.232   182.50
2021.96    0.230   182.64
2022.06    0.227   182.78
2022.16    0.225   182.92
2022.26    0.222   183.07
2022.36    0.220   183.22
2022.46    0.217   183.37
2022.56    0.215   183.53
2022.66    0.212   183.69
2022.76    0.210   183.85
2022.86    0.207   184.02
2022.96    0.205   184.19
2023.06    0.202   184.37
2023.16    0.199   184.55
2023.26    0.197   184.74
2023.36    0.194   184.93
2023.46    0.192   185.13
2023.56    0.189   185.33
2023.66    0.187   185.53
2023.76    0.184   185.75
2023.86    0.181   185.97
2023.96    0.179   186.19
2024.06    0.176   186.42
2024.16    0.173   186.66
2024.26    0.171   186.91
2024.36    0.168   187.17
2024.46    0.165   187.43
2024.56    0.163   187.70
2024.66    0.160   187.98
2024.76    0.158   188.27
2024.86    0.155   188.57
2024.96    0.152   188.88
2025.06    0.150   189.20
2025.16    0.147   189.53
2025.26    0.144   189.88
2025.36    0.141   190.24
2025.46    0.139   190.61
2025.56    0.136   191.00
2025.66    0.133   191.40
2025.76    0.131   191.82
2025.86    0.128   192.26
2025.96    0.125   192.71
2026.06    0.123   193.19
2026.16    0.120   193.69
2026.26    0.117   194.21
2026.36    0.115   194.75
2026.46    0.112   195.32
2026.56    0.109   195.92
2026.66    0.107   196.55
2026.76    0.104   197.21
2026.86    0.101   197.90
2026.96    0.099   198.64
2027.06    0.096   199.41
2027.16    0.093   200.23
2027.26    0.091   201.09
2027.36    0.088   202.00
2027.46    0.086   202.97
2027.56    0.083   204.00
2027.66    0.080   205.10
2027.76    0.078   206.26
2027.86    0.076   207.50
2027.96    0.073   208.83
2028.06    0.071   210.25
2028.16    0.068   211.76
2028.26    0.066   213.39
2028.36    0.064   215.13
2028.46    0.061   217.00
2028.56    0.059   219.00
2028.66    0.057   221.15
2028.76    0.055   223.46
2028.86    0.053   225.94
2028.96    0.052   228.60
2029.06    0.050   231.44
2029.16    0.048   234.47
2029.26    0.047   237.69
2029.36    0.046   241.10
2029.46    0.045   244.69
2029.56    0.044   248.45
2029.66    0.043   252.35
2029.76    0.042   256.36
2029.86    0.042   260.45
2029.96    0.042   264.58
2030.06    0.042   268.71
2030.16    0.042   272.80
2030.26    0.043   276.80
2030.36    0.044   280.68
2030.46    0.045   284.42
2030.56    0.046   287.99
2030.66    0.047   291.39
2030.76    0.049   294.59
2030.86    0.050   297.60
2030.96    0.052   300.42
2031.06    0.054   303.06
2031.16    0.055   305.52
2031.26    0.057   307.82
2031.36    0.060   309.96
2031.46    0.062   311.95
2031.56    0.064   313.81
2031.66    0.066   315.54
2031.76    0.068   317.15
2031.86    0.071   318.66
2031.96    0.073   320.08
2032.06    0.076   321.40
2032.16    0.078   322.64
2032.26    0.081   323.80
2032.36    0.083   324.90
2032.46    0.086   325.93
2032.56    0.088   326.90
2032.66    0.091   327.81
2032.76    0.093   328.68
2032.86    0.096   329.50
2032.96    0.098   330.28
2033.06    0.101   331.02
2033.16    0.103   331.72
2033.26    0.106   332.38
2033.36    0.109   333.02
2033.46    0.111   333.63
2033.56    0.114   334.20
2033.66    0.116   334.76
2033.76    0.119   335.29
2033.86    0.121   335.80
2033.96    0.124   336.28
2034.06    0.126   336.75
2034.16    0.129   337.20
2034.26    0.131   337.63
2034.36    0.134   338.05
2034.46    0.136   338.45
2034.56    0.139   338.83
2034.66    0.141   339.21
2034.76    0.144   339.57
2034.86    0.146   339.92
2034.96    0.148   340.26
2035.06    0.151   340.58
2035.16    0.153   340.90
2035.26    0.155   341.21
2035.36    0.157   341.51
2035.46    0.160   341.80
2035.56    0.162   342.09
2035.66    0.164   342.36
2035.76    0.166   342.63
2035.86    0.168   342.89
2035.96    0.170   343.15
2036.06    0.172   343.40
2036.16    0.174   343.64
2036.26    0.176   343.88
2036.36    0.178   344.11
2036.46    0.180   344.34
2036.56    0.182   344.57
2036.66    0.183   344.79
2036.76    0.185   345.00
2036.86    0.187   345.21
2036.96    0.188   345.42
2037.06    0.190   345.63
2037.16    0.191   345.83
2037.26    0.193   346.03
2037.36    0.194   346.22
2037.46    0.195   346.41
2037.56    0.197   346.60
2037.66    0.198   346.79
2037.76    0.199   346.98
2037.86    0.200   347.16
2037.96    0.201   347.34
2038.06    0.202   347.52
2038.16    0.203   347.70
2038.26    0.203   347.88
2038.36    0.204   348.06
2038.46    0.205   348.23
2038.56    0.205   348.41
2038.66    0.205   348.58
2038.76    0.206   348.75
2038.86    0.206   348.93
2038.96    0.206   349.10
2039.06    0.206   349.27
2039.16    0.206   349.44
2039.26    0.206   349.61
2039.36    0.206   349.79
2039.46    0.205   349.96
2039.56    0.205   350.13
2039.66    0.204   350.31
2039.76    0.204   350.48
2039.86    0.203   350.66
2039.96    0.202   350.84
2040.06    0.201   351.02
2040.16    0.200   351.20
2040.26    0.199   351.39
2040.36    0.197   351.57
2040.46    0.196   351.76
2040.56    0.194   351.95
2040.66    0.193   352.15
2040.76    0.191   352.35
2040.86    0.189   352.55
2040.96    0.187   352.75
2041.06    0.185   352.97
2041.16    0.183   353.18
2041.26    0.180   353.40
2041.36    0.178   353.63
2041.46    0.175   353.87
2041.56    0.173   354.11
2041.66    0.170   354.36
2041.76    0.167   354.62
2041.86    0.164   354.88
2041.96    0.161   355.16
2042.06    0.158   355.45
2042.16    0.154   355.75
2042.26    0.151   356.06
2042.36    0.147   356.39
2042.46    0.144   356.74
2042.56    0.140   357.10
2042.66    0.136   357.49
2042.76    0.132   357.89
2042.86    0.128   358.32
2042.96    0.124   358.78
2043.06    0.120   359.27
2043.16    0.116   359.79
2043.26    0.112     0.36
2043.36    0.108     0.96
2043.46    0.103     1.62
2043.56    0.099     2.34
2043.66    0.095     3.12
2043.76    0.090     3.98
2043.86    0.086     4.93
2043.96    0.081     5.98
2044.06    0.077     7.16
2044.16    0.072     8.48
2044.26    0.067     9.99
2044.36    0.063    11.71
2044.46    0.059    13.69
2044.56    0.054    16.00
2044.66    0.050    18.72
2044.76    0.046    21.95
2044.86    0.041    25.83
2044.96    0.038    30.54
2045.06    0.034    36.28
2045.16    0.031    43.29
2045.26    0.028    51.76
2045.36    0.026    61.71
2045.46    0.025    72.84
2045.56    0.025    84.44
2045.66    0.026    95.62
2045.76    0.028   105.66
2045.86    0.031   114.23
2045.96    0.034   121.32
2046.06    0.037   127.14
2046.16    0.041   131.90
2046.26    0.045   135.83
2046.36    0.050   139.09
2046.46    0.054   141.83
2046.56    0.058   144.16
2046.66    0.063   146.15
2046.76    0.067   147.88
2046.86    0.072   149.38
2046.96    0.077   150.71
2047.06    0.081   151.88
2047.16    0.086   152.93
2047.26    0.091   153.87
2047.36    0.095   154.72
2047.46    0.100   155.49
2047.56    0.104   156.19
2047.66    0.109   156.84
2047.76    0.114   157.43
2047.86    0.118   157.97
2047.96    0.123   158.48
2048.06    0.127   158.95
2048.16    0.132   159.38
2048.26    0.136   159.79
2048.36    0.141   160.17
2048.46    0.145   160.53
2048.56    0.149   160.87
2048.66    0.154   161.19
2048.76    0.158   161.49
2048.86    0.162   161.77
2048.96    0.167   162.04
2049.06    0.171   162.30
2049.16    0.175   162.55
2049.26    0.179   162.78
2049.36    0.183   163.00
2049.46    0.188   163.21
2049.56    0.192   163.42
2049.66    0.196   163.61
2049.76    0.200   163.80
2049.86    0.204   163.98
2049.96    0.208   164.15
2050.06    0.212   164.32
2050.16    0.215   164.48
2050.26    0.219   164.63
2050.36    0.223   164.78
2050.46    0.227   164.93
2050.56    0.231   165.07
2050.66    0.234   165.20
2050.76    0.238   165.33
2050.86    0.242   165.46
2050.96    0.245   165.58
2051.06    0.249   165.70
2051.16    0.253   165.82
2051.26    0.256   165.93
2051.36    0.260   166.04
2051.46    0.263   166.15
2051.56    0.266   166.25
2051.66    0.270   166.36
2051.76    0.273   166.45
2051.86    0.276   166.55
2051.96    0.280   166.65
2052.06    0.283   166.74
2052.16    0.286   166.83
2052.26    0.289   166.92
2052.36    0.293   167.00
2052.46    0.296   167.09
2052.56    0.299   167.17
2052.66    0.302   167.25
2052.76    0.305   167.33
2052.86    0.308   167.41
2052.96    0.311   167.49
2053.06    0.314   167.56
2053.16    0.317   167.63
2053.26    0.320   167.71
2053.36    0.322   167.78
2053.46    0.325   167.85
2053.56    0.328   167.92
2053.66    0.331   167.98
2053.76    0.333   168.05
2053.86    0.336   168.11
2053.96    0.339   168.18
2054.06    0.341   168.24
2054.16    0.344   168.30
2054.26    0.346   168.37
2054.36    0.349   168.43
2054.46    0.352   168.49
2054.56    0.354   168.54
2054.66    0.356   168.60
2054.76    0.359   168.66
2054.86    0.361   168.72
2054.96    0.364   168.77
2055.06    0.366   168.83
2055.16    0.368   168.88
2055.26    0.370   168.93
2055.36    0.373   168.99
2055.46    0.375   169.04






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 16:52:19



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