Double Star Calculator - Orbit

Orbital Elements for B1215
WDS: B1215 WDS ID/Discoverer
P: 59.820 Orbital period (years)
a: 0.242 Semi-major axis (arcseconds)
i: 50.6 Inclination (degrees)
Ω: 57.2 Longitude of ascending node (degrees)
T: 1995.378 Epoch of periastron passage (year)
e: 0.636 Eccentricity
ω: 133.8 Longitude of periastron (degrees)
Start-Year: 1995.09 Year
End-Year: 2054.91 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for B1215
Position: 123910.45-402207.3 Epoch-2000 right ascension and declination
WDS-ID: 12392-4022 WDS designation
Discoverer Code: B1215 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 109961 HD catalog number
Hipparcos number: 61729 Hipparcos catalog number
V1: 9.15 Magnitude of the primary
V2: 9.84 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2011 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: FMR2013b Reference

Double Star Orbit for B1215



WDS 6th Orbit including measures of B1215

-- 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 B1215
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.333    25.61
--------------------------
1995.09    0.068   193.67
1995.19    0.070   197.32
1995.29    0.071   200.79
1995.39    0.073   204.09
1995.49    0.075   207.21
1995.59    0.077   210.18
1995.69    0.079   212.99
1995.79    0.081   215.66
1995.89    0.083   218.20
1995.99    0.085   220.62
1996.09    0.087   222.94
1996.19    0.089   225.15
1996.29    0.091   227.27
1996.39    0.093   229.30
1996.49    0.095   231.26
1996.59    0.096   233.15
1996.69    0.098   234.97
1996.79    0.100   236.74
1996.89    0.101   238.45
1996.99    0.103   240.11
1997.09    0.104   241.73
1997.19    0.105   243.31
1997.29    0.107   244.85
1997.39    0.108   246.35
1997.49    0.109   247.83
1997.59    0.110   249.27
1997.69    0.111   250.68
1997.79    0.112   252.07
1997.89    0.113   253.44
1997.99    0.114   254.78
1998.09    0.115   256.11
1998.19    0.115   257.41
1998.29    0.116   258.70
1998.39    0.117   259.97
1998.49    0.118   261.22
1998.59    0.118   262.46
1998.69    0.119   263.68
1998.79    0.120   264.89
1998.89    0.120   266.08
1998.99    0.121   267.27
1999.09    0.122   268.44
1999.19    0.122   269.60
1999.29    0.123   270.75
1999.39    0.123   271.88
1999.49    0.124   273.01
1999.59    0.125   274.13
1999.69    0.125   275.23
1999.79    0.126   276.33
1999.89    0.126   277.42
1999.99    0.127   278.49
2000.09    0.127   279.56
2000.19    0.128   280.62
2000.29    0.128   281.67
2000.39    0.129   282.71
2000.49    0.130   283.75
2000.59    0.130   284.77
2000.69    0.131   285.79
2000.79    0.131   286.79
2000.89    0.132   287.79
2000.99    0.132   288.78
2001.09    0.133   289.76
2001.19    0.133   290.74
2001.29    0.134   291.70
2001.39    0.135   292.66
2001.49    0.135   293.60
2001.59    0.136   294.54
2001.69    0.136   295.47
2001.79    0.137   296.40
2001.89    0.138   297.31
2001.99    0.138   298.22
2002.09    0.139   299.11
2002.19    0.140   300.00
2002.29    0.140   300.88
2002.39    0.141   301.76
2002.49    0.142   302.62
2002.59    0.142   303.48
2002.69    0.143   304.33
2002.79    0.144   305.17
2002.89    0.144   306.00
2002.99    0.145   306.82
2003.09    0.146   307.64
2003.19    0.147   308.44
2003.29    0.147   309.24
2003.39    0.148   310.03
2003.49    0.149   310.81
2003.59    0.150   311.59
2003.69    0.150   312.36
2003.79    0.151   313.12
2003.89    0.152   313.87
2003.99    0.153   314.61
2004.09    0.154   315.34
2004.19    0.154   316.07
2004.29    0.155   316.79
2004.39    0.156   317.51
2004.49    0.157   318.21
2004.59    0.158   318.91
2004.69    0.159   319.60
2004.79    0.159   320.28
2004.89    0.160   320.96
2004.99    0.161   321.62
2005.09    0.162   322.28
2005.19    0.163   322.94
2005.29    0.164   323.58
2005.39    0.165   324.22
2005.49    0.166   324.86
2005.59    0.167   325.48
2005.69    0.167   326.10
2005.79    0.168   326.71
2005.89    0.169   327.32
2005.99    0.170   327.92
2006.09    0.171   328.51
2006.19    0.172   329.10
2006.29    0.173   329.68
2006.39    0.174   330.25
2006.49    0.175   330.82
2006.59    0.176   331.38
2006.69    0.177   331.94
2006.79    0.178   332.49
2006.89    0.179   333.03
2006.99    0.180   333.57
2007.09    0.181   334.10
2007.19    0.182   334.62
2007.29    0.183   335.15
2007.39    0.184   335.66
2007.49    0.185   336.17
2007.59    0.186   336.67
2007.69    0.186   337.17
2007.79    0.187   337.67
2007.89    0.188   338.16
2007.99    0.189   338.64
2008.09    0.190   339.12
2008.19    0.191   339.59
2008.29    0.192   340.06
2008.39    0.193   340.52
2008.49    0.194   340.98
2008.59    0.195   341.44
2008.69    0.196   341.89
2008.79    0.197   342.33
2008.89    0.198   342.77
2008.99    0.199   343.21
2009.09    0.200   343.64
2009.19    0.201   344.07
2009.29    0.202   344.49
2009.39    0.203   344.91
2009.49    0.204   345.33
2009.59    0.205   345.74
2009.69    0.206   346.15
2009.79    0.207   346.55
2009.89    0.208   346.95
2009.99    0.209   347.34
2010.09    0.210   347.74
2010.19    0.211   348.12
2010.29    0.212   348.51
2010.39    0.213   348.89
2010.49    0.214   349.27
2010.59    0.215   349.64
2010.69    0.216   350.01
2010.79    0.217   350.38
2010.89    0.218   350.74
2010.99    0.219   351.10
2011.09    0.220   351.46
2011.19    0.221   351.81
2011.29    0.222   352.16
2011.39    0.223   352.51
2011.49    0.224   352.85
2011.59    0.225   353.19
2011.69    0.226   353.53
2011.79    0.227   353.87
2011.89    0.228   354.20
2011.99    0.229   354.53
2012.09    0.230   354.86
2012.19    0.231   355.18
2012.29    0.232   355.50
2012.39    0.233   355.82
2012.49    0.234   356.14
2012.59    0.235   356.45
2012.69    0.236   356.76
2012.79    0.237   357.07
2012.89    0.238   357.38
2012.99    0.239   357.68
2013.09    0.240   357.98
2013.19    0.241   358.28
2013.29    0.242   358.57
2013.39    0.243   358.87
2013.49    0.244   359.16
2013.59    0.245   359.45
2013.69    0.246   359.74
2013.79    0.247     0.02
2013.89    0.248     0.30
2013.99    0.249     0.58
2014.09    0.249     0.86
2014.19    0.250     1.14
2014.29    0.251     1.41
2014.39    0.252     1.69
2014.49    0.253     1.96
2014.59    0.254     2.22
2014.69    0.255     2.49
2014.79    0.256     2.75
2014.89    0.257     3.02
2014.99    0.258     3.28
2015.09    0.259     3.54
2015.19    0.260     3.79
2015.29    0.260     4.05
2015.39    0.261     4.30
2015.49    0.262     4.56
2015.59    0.263     4.81
2015.69    0.264     5.05
2015.79    0.265     5.30
2015.89    0.266     5.55
2015.99    0.267     5.79
2016.09    0.267     6.03
2016.19    0.268     6.27
2016.29    0.269     6.51
2016.39    0.270     6.75
2016.49    0.271     6.99
2016.59    0.272     7.22
2016.69    0.273     7.45
2016.79    0.273     7.68
2016.89    0.274     7.91
2016.99    0.275     8.14
2017.09    0.276     8.37
2017.19    0.277     8.60
2017.29    0.278     8.82
2017.39    0.278     9.04
2017.49    0.279     9.27
2017.59    0.280     9.49
2017.69    0.281     9.71
2017.79    0.282     9.93
2017.89    0.282    10.14
2017.99    0.283    10.36
2018.09    0.284    10.57
2018.19    0.285    10.79
2018.29    0.286    11.00
2018.39    0.286    11.21
2018.49    0.287    11.42
2018.59    0.288    11.63
2018.69    0.289    11.84
2018.79    0.289    12.04
2018.89    0.290    12.25
2018.99    0.291    12.45
2019.09    0.292    12.65
2019.19    0.292    12.86
2019.29    0.293    13.06
2019.39    0.294    13.26
2019.49    0.295    13.46
2019.59    0.295    13.66
2019.69    0.296    13.85
2019.79    0.297    14.05
2019.89    0.298    14.25
2019.99    0.298    14.44
2020.09    0.299    14.63
2020.19    0.300    14.83
2020.29    0.300    15.02
2020.39    0.301    15.21
2020.49    0.302    15.40
2020.59    0.302    15.59
2020.69    0.303    15.78
2020.79    0.304    15.96
2020.89    0.304    16.15
2020.99    0.305    16.34
2021.09    0.306    16.52
2021.19    0.306    16.71
2021.29    0.307    16.89
2021.39    0.308    17.07
2021.49    0.308    17.25
2021.59    0.309    17.44
2021.69    0.310    17.62
2021.79    0.310    17.80
2021.89    0.311    17.97
2021.99    0.311    18.15
2022.09    0.312    18.33
2022.19    0.313    18.51
2022.29    0.313    18.68
2022.39    0.314    18.86
2022.49    0.314    19.03
2022.59    0.315    19.21
2022.69    0.316    19.38
2022.79    0.316    19.56
2022.89    0.317    19.73
2022.99    0.317    19.90
2023.09    0.318    20.07
2023.19    0.318    20.24
2023.29    0.319    20.41
2023.39    0.319    20.58
2023.49    0.320    20.75
2023.59    0.320    20.92
2023.69    0.321    21.09
2023.79    0.322    21.25
2023.89    0.322    21.42
2023.99    0.323    21.59
2024.09    0.323    21.75
2024.19    0.324    21.92
2024.29    0.324    22.08
2024.39    0.325    22.25
2024.49    0.325    22.41
2024.59    0.325    22.57
2024.69    0.326    22.74
2024.79    0.326    22.90
2024.89    0.327    23.06
2024.99    0.327    23.22
2025.09    0.328    23.38
2025.19    0.328    23.54
2025.29    0.329    23.70
2025.39    0.329    23.86
2025.49    0.329    24.02
2025.59    0.330    24.18
2025.69    0.330    24.34
2025.79    0.331    24.50
2025.89    0.331    24.65
2025.99    0.331    24.81
2026.09    0.332    24.97
2026.19    0.332    25.13
2026.29    0.333    25.28
2026.39    0.333    25.44
2026.49    0.333    25.59
2026.59    0.334    25.75
2026.69    0.334    25.90
2026.79    0.334    26.06
2026.89    0.335    26.21
2026.99    0.335    26.37
2027.09    0.335    26.52
2027.19    0.336    26.67
2027.29    0.336    26.83
2027.39    0.336    26.98
2027.49    0.337    27.13
2027.59    0.337    27.28
2027.69    0.337    27.43
2027.79    0.338    27.59
2027.89    0.338    27.74
2027.99    0.338    27.89
2028.09    0.338    28.04
2028.19    0.339    28.19
2028.29    0.339    28.34
2028.39    0.339    28.49
2028.49    0.339    28.64
2028.59    0.340    28.79
2028.69    0.340    28.94
2028.79    0.340    29.09
2028.89    0.340    29.24
2028.99    0.340    29.39
2029.09    0.341    29.54
2029.19    0.341    29.69
2029.29    0.341    29.83
2029.39    0.341    29.98
2029.49    0.341    30.13
2029.59    0.342    30.28
2029.69    0.342    30.43
2029.79    0.342    30.57
2029.89    0.342    30.72
2029.99    0.342    30.87
2030.09    0.342    31.02
2030.19    0.342    31.16
2030.29    0.343    31.31
2030.39    0.343    31.46
2030.49    0.343    31.61
2030.59    0.343    31.75
2030.69    0.343    31.90
2030.79    0.343    32.05
2030.89    0.343    32.19
2030.99    0.343    32.34
2031.09    0.343    32.49
2031.19    0.343    32.63
2031.29    0.343    32.78
2031.39    0.343    32.92
2031.49    0.343    33.07
2031.59    0.343    33.22
2031.69    0.343    33.36
2031.79    0.344    33.51
2031.89    0.344    33.66
2031.99    0.344    33.80
2032.09    0.343    33.95
2032.19    0.343    34.10
2032.29    0.343    34.24
2032.39    0.343    34.39
2032.49    0.343    34.53
2032.59    0.343    34.68
2032.69    0.343    34.83
2032.79    0.343    34.97
2032.89    0.343    35.12
2032.99    0.343    35.27
2033.09    0.343    35.41
2033.19    0.343    35.56
2033.29    0.343    35.71
2033.39    0.343    35.85
2033.49    0.343    36.00
2033.59    0.342    36.15
2033.69    0.342    36.30
2033.79    0.342    36.44
2033.89    0.342    36.59
2033.99    0.342    36.74
2034.09    0.342    36.89
2034.19    0.342    37.03
2034.29    0.341    37.18
2034.39    0.341    37.33
2034.49    0.341    37.48
2034.59    0.341    37.63
2034.69    0.341    37.78
2034.79    0.340    37.93
2034.89    0.340    38.07
2034.99    0.340    38.22
2035.09    0.340    38.37
2035.19    0.339    38.52
2035.29    0.339    38.67
2035.39    0.339    38.82
2035.49    0.339    38.97
2035.59    0.338    39.12
2035.69    0.338    39.28
2035.79    0.338    39.43
2035.89    0.337    39.58
2035.99    0.337    39.73
2036.09    0.337    39.88
2036.19    0.336    40.04
2036.29    0.336    40.19
2036.39    0.336    40.34
2036.49    0.335    40.49
2036.59    0.335    40.65
2036.69    0.334    40.80
2036.79    0.334    40.96
2036.89    0.334    41.11
2036.99    0.333    41.27
2037.09    0.333    41.42
2037.19    0.332    41.58
2037.29    0.332    41.74
2037.39    0.331    41.89
2037.49    0.331    42.05
2037.59    0.330    42.21
2037.69    0.330    42.37
2037.79    0.329    42.53
2037.89    0.329    42.68
2037.99    0.328    42.84
2038.09    0.328    43.00
2038.19    0.327    43.17
2038.29    0.327    43.33
2038.39    0.326    43.49
2038.49    0.326    43.65
2038.59    0.325    43.81
2038.69    0.325    43.98
2038.79    0.324    44.14
2038.89    0.323    44.31
2038.99    0.323    44.47
2039.09    0.322    44.64
2039.19    0.321    44.81
2039.29    0.321    44.97
2039.39    0.320    45.14
2039.49    0.319    45.31
2039.59    0.319    45.48
2039.69    0.318    45.65
2039.79    0.317    45.82
2039.89    0.317    45.99
2039.99    0.316    46.17
2040.09    0.315    46.34
2040.19    0.314    46.51
2040.29    0.314    46.69
2040.39    0.313    46.86
2040.49    0.312    47.04
2040.59    0.311    47.22
2040.69    0.310    47.40
2040.79    0.310    47.58
2040.89    0.309    47.76
2040.99    0.308    47.94
2041.09    0.307    48.12
2041.19    0.306    48.31
2041.29    0.305    48.49
2041.39    0.304    48.68
2041.49    0.303    48.86
2041.59    0.302    49.05
2041.69    0.301    49.24
2041.79    0.301    49.43
2041.89    0.300    49.62
2041.99    0.299    49.82
2042.09    0.298    50.01
2042.19    0.297    50.21
2042.29    0.296    50.40
2042.39    0.294    50.60
2042.49    0.293    50.80
2042.59    0.292    51.00
2042.69    0.291    51.21
2042.79    0.290    51.41
2042.89    0.289    51.62
2042.99    0.288    51.82
2043.09    0.287    52.03
2043.19    0.286    52.24
2043.29    0.284    52.46
2043.39    0.283    52.67
2043.49    0.282    52.89
2043.59    0.281    53.10
2043.69    0.280    53.32
2043.79    0.278    53.55
2043.89    0.277    53.77
2043.99    0.276    53.99
2044.09    0.275    54.22
2044.19    0.273    54.45
2044.29    0.272    54.68
2044.39    0.271    54.92
2044.49    0.269    55.16
2044.59    0.268    55.40
2044.69    0.266    55.64
2044.79    0.265    55.88
2044.89    0.264    56.13
2044.99    0.262    56.38
2045.09    0.261    56.63
2045.19    0.259    56.89
2045.29    0.258    57.14
2045.39    0.256    57.41
2045.49    0.255    57.67
2045.59    0.253    57.94
2045.69    0.252    58.21
2045.79    0.250    58.48
2045.89    0.248    58.76
2045.99    0.247    59.04
2046.09    0.245    59.33
2046.19    0.243    59.62
2046.29    0.242    59.91
2046.39    0.240    60.21
2046.49    0.238    60.51
2046.59    0.237    60.82
2046.69    0.235    61.13
2046.79    0.233    61.44
2046.89    0.231    61.76
2046.99    0.229    62.09
2047.09    0.227    62.42
2047.19    0.226    62.76
2047.29    0.224    63.10
2047.39    0.222    63.45
2047.49    0.220    63.80
2047.59    0.218    64.16
2047.69    0.216    64.53
2047.79    0.214    64.90
2047.89    0.212    65.28
2047.99    0.210    65.67
2048.09    0.208    66.07
2048.19    0.206    66.47
2048.29    0.203    66.89
2048.39    0.201    67.31
2048.49    0.199    67.74
2048.59    0.197    68.18
2048.69    0.195    68.63
2048.79    0.192    69.09
2048.89    0.190    69.56
2048.99    0.188    70.05
2049.09    0.185    70.54
2049.19    0.183    71.05
2049.29    0.181    71.58
2049.39    0.178    72.11
2049.49    0.176    72.66
2049.59    0.173    73.23
2049.69    0.171    73.81
2049.79    0.168    74.41
2049.89    0.166    75.03
2049.99    0.163    75.67
2050.09    0.161    76.33
2050.19    0.158    77.01
2050.29    0.155    77.72
2050.39    0.153    78.44
2050.49    0.150    79.20
2050.59    0.147    79.98
2050.69    0.144    80.80
2050.79    0.142    81.64
2050.89    0.139    82.52
2050.99    0.136    83.44
2051.09    0.133    84.39
2051.19    0.130    85.39
2051.29    0.127    86.43
2051.39    0.124    87.52
2051.49    0.121    88.66
2051.59    0.118    89.86
2051.69    0.116    91.13
2051.79    0.113    92.45
2051.89    0.110    93.85
2051.99    0.107    95.33
2052.09    0.104    96.89
2052.19    0.101    98.54
2052.29    0.098   100.29
2052.39    0.095   102.15
2052.49    0.092   104.13
2052.59    0.089   106.23
2052.69    0.086   108.47
2052.79    0.084   110.86
2052.89    0.081   113.41
2052.99    0.078   116.13
2053.09    0.076   119.02
2053.19    0.074   122.11
2053.29    0.071   125.39
2053.39    0.069   128.87
2053.49    0.068   132.56
2053.59    0.066   136.44
2053.69    0.064   140.51
2053.79    0.063   144.74
2053.89    0.062   149.13
2053.99    0.062   153.62
2054.09    0.061   158.20
2054.19    0.061   162.81
2054.29    0.061   167.41
2054.39    0.062   171.97
2054.49    0.063   176.44
2054.59    0.063   180.79
2054.69    0.065   185.00
2054.79    0.066   189.04
2054.89    0.068   192.91






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 16:48:30



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