Double Star Calculator - Orbit

Orbital Elements for STT38BC
WDS: STT38BC WDS ID/Discoverer
P: 62.630 Orbital period (years)
a: 0.317 Semi-major axis (arcseconds)
i: 104.8 Inclination (degrees)
Ω: 103.2 Longitude of ascending node (degrees)
T: 1951.980 Epoch of periastron passage (year)
e: 0.874 Eccentricity
ω: 163.4 Longitude of periastron (degrees)
Start-Year: 1993.685 Year
End-Year: 2056.315 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT38BC
Position: 020353.92+421947.5 Epoch-2000 right ascension and declination
WDS-ID: 02039+4220 WDS designation
Discoverer Code: STT38BC Discover designation and components
ADS number: 1630 Aitken Double Star catalog
HD number: 12534 HD catalog number
Hipparcos number: 9640 Hipparcos catalog number
V1: 5.3 Magnitude of the primary
V2: 6.5 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 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: Doc2017a Reference

Double Star Orbit for STT38BC



WDS 6th Orbit including measures of STT38BC

-- 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 STT38BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.355   113.60
--------------------------
1993.68    0.545   105.23
1993.78    0.545   105.21
1993.88    0.544   105.18
1993.98    0.543   105.16
1994.08    0.542   105.13
1994.18    0.541   105.11
1994.28    0.541   105.09
1994.38    0.540   105.06
1994.48    0.539   105.04
1994.58    0.538   105.01
1994.68    0.537   104.99
1994.78    0.537   104.96
1994.88    0.536   104.94
1994.98    0.535   104.91
1995.08    0.534   104.89
1995.18    0.533   104.86
1995.28    0.532   104.84
1995.38    0.531   104.81
1995.48    0.530   104.79
1995.58    0.529   104.76
1995.68    0.528   104.73
1995.78    0.527   104.71
1995.88    0.526   104.68
1995.98    0.525   104.66
1996.08    0.524   104.63
1996.18    0.523   104.60
1996.28    0.522   104.58
1996.38    0.521   104.55
1996.48    0.520   104.53
1996.58    0.519   104.50
1996.68    0.518   104.47
1996.78    0.517   104.45
1996.88    0.516   104.42
1996.98    0.515   104.39
1997.08    0.514   104.36
1997.18    0.513   104.34
1997.28    0.512   104.31
1997.38    0.510   104.28
1997.48    0.509   104.26
1997.58    0.508   104.23
1997.68    0.507   104.20
1997.78    0.506   104.17
1997.88    0.504   104.14
1997.98    0.503   104.12
1998.08    0.502   104.09
1998.18    0.501   104.06
1998.28    0.499   104.03
1998.38    0.498   104.00
1998.48    0.497   103.97
1998.58    0.496   103.94
1998.68    0.494   103.91
1998.78    0.493   103.88
1998.88    0.492   103.85
1998.98    0.490   103.82
1999.08    0.489   103.79
1999.18    0.488   103.76
1999.28    0.486   103.73
1999.38    0.485   103.70
1999.48    0.483   103.67
1999.58    0.482   103.64
1999.68    0.480   103.61
1999.78    0.479   103.58
1999.88    0.478   103.55
1999.98    0.476   103.52
2000.08    0.475   103.49
2000.18    0.473   103.45
2000.28    0.471   103.42
2000.38    0.470   103.39
2000.48    0.468   103.36
2000.58    0.467   103.32
2000.68    0.465   103.29
2000.78    0.464   103.26
2000.88    0.462   103.22
2000.98    0.460   103.19
2001.08    0.459   103.16
2001.18    0.457   103.12
2001.28    0.455   103.09
2001.38    0.454   103.05
2001.48    0.452   103.02
2001.58    0.450   102.98
2001.68    0.449   102.95
2001.78    0.447   102.91
2001.88    0.445   102.88
2001.98    0.443   102.84
2002.08    0.441   102.80
2002.18    0.440   102.77
2002.28    0.438   102.73
2002.38    0.436   102.69
2002.48    0.434   102.65
2002.58    0.432   102.62
2002.68    0.430   102.58
2002.78    0.428   102.54
2002.88    0.426   102.50
2002.98    0.424   102.46
2003.08    0.422   102.42
2003.18    0.421   102.38
2003.28    0.419   102.34
2003.38    0.416   102.30
2003.48    0.414   102.25
2003.58    0.412   102.21
2003.68    0.410   102.17
2003.78    0.408   102.13
2003.88    0.406   102.08
2003.98    0.404   102.04
2004.08    0.402   102.00
2004.18    0.400   101.95
2004.28    0.397   101.91
2004.38    0.395   101.86
2004.48    0.393   101.82
2004.58    0.391   101.77
2004.68    0.388   101.72
2004.78    0.386   101.67
2004.88    0.384   101.62
2004.98    0.382   101.58
2005.08    0.379   101.53
2005.18    0.377   101.48
2005.28    0.374   101.43
2005.38    0.372   101.37
2005.48    0.369   101.32
2005.58    0.367   101.27
2005.68    0.365   101.22
2005.78    0.362   101.16
2005.88    0.359   101.11
2005.98    0.357   101.05
2006.08    0.354   100.99
2006.18    0.352   100.94
2006.28    0.349   100.88
2006.38    0.346   100.82
2006.48    0.344   100.76
2006.58    0.341   100.70
2006.68    0.338   100.63
2006.78    0.336   100.57
2006.88    0.333   100.51
2006.98    0.330   100.44
2007.08    0.327   100.38
2007.18    0.324   100.31
2007.28    0.321   100.24
2007.38    0.318   100.17
2007.48    0.315   100.10
2007.58    0.312   100.02
2007.68    0.309    99.95
2007.78    0.306    99.87
2007.88    0.303    99.80
2007.98    0.300    99.72
2008.08    0.297    99.64
2008.18    0.294    99.56
2008.28    0.291    99.47
2008.38    0.287    99.39
2008.48    0.284    99.30
2008.58    0.281    99.21
2008.68    0.277    99.12
2008.78    0.274    99.02
2008.88    0.271    98.93
2008.98    0.267    98.83
2009.08    0.264    98.72
2009.18    0.260    98.62
2009.28    0.256    98.51
2009.38    0.253    98.40
2009.48    0.249    98.29
2009.58    0.245    98.17
2009.68    0.242    98.05
2009.78    0.238    97.93
2009.88    0.234    97.80
2009.98    0.230    97.66
2010.08    0.226    97.53
2010.18    0.222    97.38
2010.28    0.218    97.24
2010.38    0.214    97.08
2010.48    0.210    96.92
2010.58    0.206    96.76
2010.68    0.201    96.58
2010.78    0.197    96.40
2010.88    0.193    96.21
2010.98    0.188    96.02
2011.08    0.184    95.81
2011.18    0.179    95.59
2011.28    0.175    95.36
2011.38    0.170    95.12
2011.48    0.165    94.86
2011.58    0.160    94.59
2011.68    0.155    94.30
2011.78    0.150    94.00
2011.88    0.145    93.67
2011.98    0.140    93.31
2012.08    0.135    92.93
2012.18    0.129    92.52
2012.28    0.124    92.07
2012.38    0.118    91.58
2012.48    0.112    91.04
2012.58    0.107    90.44
2012.68    0.101    89.77
2012.78    0.095    89.02
2012.88    0.088    88.17
2012.98    0.082    87.18
2013.08    0.076    86.03
2013.18    0.069    84.66
2013.28    0.063    83.01
2013.38    0.056    80.95
2013.48    0.049    78.32
2013.58    0.042    74.82
2013.68    0.035    69.93
2013.78    0.028    62.65
2013.88    0.022    50.98
2013.98    0.017    31.43
2014.08    0.015     2.31
2014.18    0.017   333.45
2014.28    0.022   314.13
2014.38    0.028   302.32
2014.48    0.033   294.53
2014.58    0.038   288.80
2014.68    0.040   284.10
2014.78    0.042   279.85
2014.88    0.041   275.67
2014.98    0.040   271.30
2015.08    0.037   266.49
2015.18    0.035   260.99
2015.28    0.032   254.55
2015.38    0.029   246.91
2015.48    0.027   237.86
2015.58    0.025   227.38
2015.68    0.025   215.78
2015.78    0.025   203.80
2015.88    0.026   192.33
2015.98    0.027   182.08
2016.08    0.030   173.36
2016.18    0.033   166.12
2016.28    0.036   160.17
2016.38    0.040   155.27
2016.48    0.044   151.22
2016.58    0.048   147.83
2016.68    0.052   144.97
2016.78    0.056   142.52
2016.88    0.060   140.41
2016.98    0.065   138.57
2017.08    0.069   136.95
2017.18    0.073   135.52
2017.28    0.077   134.25
2017.38    0.081   133.10
2017.48    0.085   132.06
2017.58    0.089   131.12
2017.68    0.093   130.27
2017.78    0.098   129.48
2017.88    0.102   128.76
2017.98    0.106   128.09
2018.08    0.109   127.46
2018.18    0.113   126.89
2018.28    0.117   126.35
2018.38    0.121   125.84
2018.48    0.125   125.37
2018.58    0.129   124.92
2018.68    0.133   124.50
2018.78    0.136   124.11
2018.88    0.140   123.73
2018.98    0.144   123.37
2019.08    0.147   123.04
2019.18    0.151   122.71
2019.28    0.155   122.41
2019.38    0.158   122.11
2019.48    0.162   121.83
2019.58    0.165   121.56
2019.68    0.169   121.31
2019.78    0.172   121.06
2019.88    0.175   120.82
2019.98    0.179   120.59
2020.08    0.182   120.37
2020.18    0.186   120.16
2020.28    0.189   119.96
2020.38    0.192   119.76
2020.48    0.195   119.57
2020.58    0.199   119.38
2020.68    0.202   119.20
2020.78    0.205   119.03
2020.88    0.208   118.86
2020.98    0.211   118.70
2021.08    0.215   118.54
2021.18    0.218   118.39
2021.28    0.221   118.24
2021.38    0.224   118.09
2021.48    0.227   117.95
2021.58    0.230   117.82
2021.68    0.233   117.68
2021.78    0.236   117.55
2021.88    0.239   117.42
2021.98    0.242   117.30
2022.08    0.245   117.18
2022.18    0.247   117.06
2022.28    0.250   116.94
2022.38    0.253   116.83
2022.48    0.256   116.72
2022.58    0.259   116.61
2022.68    0.262   116.51
2022.78    0.264   116.40
2022.88    0.267   116.30
2022.98    0.270   116.20
2023.08    0.273   116.10
2023.18    0.275   116.01
2023.28    0.278   115.91
2023.38    0.281   115.82
2023.48    0.283   115.73
2023.58    0.286   115.64
2023.68    0.288   115.56
2023.78    0.291   115.47
2023.88    0.294   115.39
2023.98    0.296   115.31
2024.08    0.299   115.22
2024.18    0.301   115.14
2024.28    0.304   115.07
2024.38    0.306   114.99
2024.48    0.309   114.91
2024.58    0.311   114.84
2024.68    0.314   114.76
2024.78    0.316   114.69
2024.88    0.318   114.62
2024.98    0.321   114.55
2025.08    0.323   114.48
2025.18    0.325   114.41
2025.28    0.328   114.35
2025.38    0.330   114.28
2025.48    0.332   114.21
2025.58    0.335   114.15
2025.68    0.337   114.09
2025.78    0.339   114.02
2025.88    0.342   113.96
2025.98    0.344   113.90
2026.08    0.346   113.84
2026.18    0.348   113.78
2026.28    0.350   113.72
2026.38    0.353   113.66
2026.48    0.355   113.61
2026.58    0.357   113.55
2026.68    0.359   113.49
2026.78    0.361   113.44
2026.88    0.363   113.38
2026.98    0.365   113.33
2027.08    0.367   113.28
2027.18    0.369   113.22
2027.28    0.372   113.17
2027.38    0.374   113.12
2027.48    0.376   113.07
2027.58    0.378   113.02
2027.68    0.380   112.97
2027.78    0.382   112.92
2027.88    0.384   112.87
2027.98    0.386   112.82
2028.08    0.388   112.77
2028.18    0.389   112.73
2028.28    0.391   112.68
2028.38    0.393   112.63
2028.48    0.395   112.59
2028.58    0.397   112.54
2028.68    0.399   112.50
2028.78    0.401   112.45
2028.88    0.403   112.41
2028.98    0.405   112.36
2029.08    0.406   112.32
2029.18    0.408   112.28
2029.28    0.410   112.23
2029.38    0.412   112.19
2029.48    0.414   112.15
2029.58    0.415   112.11
2029.68    0.417   112.06
2029.78    0.419   112.02
2029.88    0.421   111.98
2029.98    0.422   111.94
2030.08    0.424   111.90
2030.18    0.426   111.86
2030.28    0.427   111.82
2030.38    0.429   111.78
2030.48    0.431   111.75
2030.58    0.432   111.71
2030.68    0.434   111.67
2030.78    0.436   111.63
2030.88    0.437   111.59
2030.98    0.439   111.56
2031.08    0.440   111.52
2031.18    0.442   111.48
2031.28    0.444   111.45
2031.38    0.445   111.41
2031.48    0.447   111.37
2031.58    0.448   111.34
2031.68    0.450   111.30
2031.78    0.451   111.27
2031.88    0.453   111.23
2031.98    0.454   111.20
2032.08    0.456   111.16
2032.18    0.457   111.13
2032.28    0.459   111.09
2032.38    0.460   111.06
2032.48    0.462   111.03
2032.58    0.463   110.99
2032.68    0.465   110.96
2032.78    0.466   110.93
2032.88    0.467   110.89
2032.98    0.469   110.86
2033.08    0.470   110.83
2033.18    0.472   110.80
2033.28    0.473   110.76
2033.38    0.474   110.73
2033.48    0.476   110.70
2033.58    0.477   110.67
2033.68    0.478   110.64
2033.78    0.480   110.61
2033.88    0.481   110.57
2033.98    0.482   110.54
2034.08    0.484   110.51
2034.18    0.485   110.48
2034.28    0.486   110.45
2034.38    0.487   110.42
2034.48    0.489   110.39
2034.58    0.490   110.36
2034.68    0.491   110.33
2034.78    0.492   110.30
2034.88    0.493   110.27
2034.98    0.495   110.24
2035.08    0.496   110.21
2035.18    0.497   110.18
2035.28    0.498   110.16
2035.38    0.499   110.13
2035.48    0.500   110.10
2035.58    0.502   110.07
2035.68    0.503   110.04
2035.78    0.504   110.01
2035.88    0.505   109.98
2035.98    0.506   109.96
2036.08    0.507   109.93
2036.18    0.508   109.90
2036.28    0.509   109.87
2036.38    0.510   109.85
2036.48    0.511   109.82
2036.58    0.513   109.79
2036.68    0.514   109.76
2036.78    0.515   109.74
2036.88    0.516   109.71
2036.98    0.517   109.68
2037.08    0.518   109.66
2037.18    0.519   109.63
2037.28    0.520   109.60
2037.38    0.521   109.58
2037.48    0.522   109.55
2037.58    0.522   109.52
2037.68    0.523   109.50
2037.78    0.524   109.47
2037.88    0.525   109.44
2037.98    0.526   109.42
2038.08    0.527   109.39
2038.18    0.528   109.37
2038.28    0.529   109.34
2038.38    0.530   109.32
2038.48    0.531   109.29
2038.58    0.532   109.26
2038.68    0.532   109.24
2038.78    0.533   109.21
2038.88    0.534   109.19
2038.98    0.535   109.16
2039.08    0.536   109.14
2039.18    0.536   109.11
2039.28    0.537   109.09
2039.38    0.538   109.06
2039.48    0.539   109.04
2039.58    0.540   109.01
2039.68    0.540   108.99
2039.78    0.541   108.97
2039.88    0.542   108.94
2039.98    0.543   108.92
2040.08    0.543   108.89
2040.18    0.544   108.87
2040.28    0.545   108.84
2040.38    0.546   108.82
2040.48    0.546   108.80
2040.58    0.547   108.77
2040.68    0.548   108.75
2040.78    0.548   108.72
2040.88    0.549   108.70
2040.98    0.550   108.68
2041.08    0.550   108.65
2041.18    0.551   108.63
2041.28    0.551   108.61
2041.38    0.552   108.58
2041.48    0.553   108.56
2041.58    0.553   108.54
2041.68    0.554   108.51
2041.78    0.554   108.49
2041.88    0.555   108.47
2041.98    0.556   108.44
2042.08    0.556   108.42
2042.18    0.557   108.40
2042.28    0.557   108.37
2042.38    0.558   108.35
2042.48    0.558   108.33
2042.58    0.559   108.30
2042.68    0.559   108.28
2042.78    0.560   108.26
2042.88    0.560   108.23
2042.98    0.561   108.21
2043.08    0.561   108.19
2043.18    0.562   108.17
2043.28    0.562   108.14
2043.38    0.563   108.12
2043.48    0.563   108.10
2043.58    0.563   108.08
2043.68    0.564   108.05
2043.78    0.564   108.03
2043.88    0.565   108.01
2043.98    0.565   107.99
2044.08    0.565   107.96
2044.18    0.566   107.94
2044.28    0.566   107.92
2044.38    0.567   107.90
2044.48    0.567   107.87
2044.58    0.567   107.85
2044.68    0.568   107.83
2044.78    0.568   107.81
2044.88    0.568   107.78
2044.98    0.569   107.76
2045.08    0.569   107.74
2045.18    0.569   107.72
2045.28    0.569   107.70
2045.38    0.570   107.67
2045.48    0.570   107.65
2045.58    0.570   107.63
2045.68    0.570   107.61
2045.78    0.571   107.59
2045.88    0.571   107.56
2045.98    0.571   107.54
2046.08    0.571   107.52
2046.18    0.571   107.50
2046.28    0.572   107.48
2046.38    0.572   107.45
2046.48    0.572   107.43
2046.58    0.572   107.41
2046.68    0.572   107.39
2046.78    0.573   107.37
2046.88    0.573   107.34
2046.98    0.573   107.32
2047.08    0.573   107.30
2047.18    0.573   107.28
2047.28    0.573   107.26
2047.38    0.573   107.24
2047.48    0.573   107.21
2047.58    0.573   107.19
2047.68    0.573   107.17
2047.78    0.574   107.15
2047.88    0.574   107.13
2047.98    0.574   107.10
2048.08    0.574   107.08
2048.18    0.574   107.06
2048.28    0.574   107.04
2048.38    0.574   107.02
2048.48    0.574   107.00
2048.58    0.574   106.97
2048.68    0.574   106.95
2048.78    0.574   106.93
2048.88    0.574   106.91
2048.98    0.574   106.89
2049.08    0.574   106.86
2049.18    0.573   106.84
2049.28    0.573   106.82
2049.38    0.573   106.80
2049.48    0.573   106.78
2049.58    0.573   106.76
2049.68    0.573   106.73
2049.78    0.573   106.71
2049.88    0.573   106.69
2049.98    0.573   106.67
2050.08    0.573   106.65
2050.18    0.572   106.62
2050.28    0.572   106.60
2050.38    0.572   106.58
2050.48    0.572   106.56
2050.58    0.572   106.54
2050.68    0.571   106.51
2050.78    0.571   106.49
2050.88    0.571   106.47
2050.98    0.571   106.45
2051.08    0.571   106.43
2051.18    0.570   106.40
2051.28    0.570   106.38
2051.38    0.570   106.36
2051.48    0.570   106.34
2051.58    0.569   106.32
2051.68    0.569   106.29
2051.78    0.569   106.27
2051.88    0.568   106.25
2051.98    0.568   106.23
2052.08    0.568   106.21
2052.18    0.567   106.18
2052.28    0.567   106.16
2052.38    0.567   106.14
2052.48    0.566   106.12
2052.58    0.566   106.09
2052.68    0.566   106.07
2052.78    0.565   106.05
2052.88    0.565   106.03
2052.98    0.564   106.00
2053.08    0.564   105.98
2053.18    0.564   105.96
2053.28    0.563   105.94
2053.38    0.563   105.91
2053.48    0.562   105.89
2053.58    0.562   105.87
2053.68    0.561   105.85
2053.78    0.561   105.82
2053.88    0.560   105.80
2053.98    0.560   105.78
2054.08    0.559   105.75
2054.18    0.559   105.73
2054.28    0.558   105.71
2054.38    0.558   105.69
2054.48    0.557   105.66
2054.58    0.557   105.64
2054.68    0.556   105.62
2054.78    0.555   105.59
2054.88    0.555   105.57
2054.98    0.554   105.55
2055.08    0.554   105.52
2055.18    0.553   105.50
2055.28    0.552   105.48
2055.38    0.552   105.45
2055.48    0.551   105.43
2055.58    0.550   105.41
2055.68    0.550   105.38
2055.78    0.549   105.36
2055.88    0.548   105.33
2055.98    0.548   105.31
2056.08    0.547   105.29
2056.18    0.546   105.26
2056.28    0.546   105.24






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 14:56:38



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