Double Star Calculator - Orbit

Orbital Elements for RST2957
WDS: RST2957 WDS ID/Discoverer
P: 55.600 Orbital period (years)
a: 0.213 Semi-major axis (arcseconds)
i: 85.4 Inclination (degrees)
Ω: 92.8 Longitude of ascending node (degrees)
T: 2027.560 Epoch of periastron passage (year)
e: 0.568 Eccentricity
ω: 342.4 Longitude of periastron (degrees)
Start-Year: 1997.2 Year
End-Year: 2052.8 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for RST2957
Position: 152507.67-234016.2 Epoch-2000 right ascension and declination
WDS-ID: 15251-2340 WDS designation
Discoverer Code: RST2957 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 137153 HD catalog number
Hipparcos number: 75478 Hipparcos catalog number
V1: 9.26 Magnitude of the primary
V2: 9.47 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 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: Tok2023a Reference

Double Star Orbit for RST2957



WDS 6th Orbit including measures of RST2957

-- 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 RST2957
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.066    87.90
--------------------------
1997.20    0.305   270.83
1997.30    0.306   270.85
1997.40    0.307   270.88
1997.50    0.307   270.90
1997.60    0.308   270.92
1997.70    0.308   270.94
1997.80    0.309   270.96
1997.90    0.310   270.98
1998.00    0.310   271.00
1998.10    0.311   271.02
1998.20    0.311   271.04
1998.30    0.312   271.06
1998.40    0.312   271.08
1998.50    0.313   271.10
1998.60    0.313   271.12
1998.70    0.314   271.14
1998.80    0.314   271.16
1998.90    0.315   271.18
1999.00    0.315   271.20
1999.10    0.316   271.22
1999.20    0.316   271.23
1999.30    0.317   271.25
1999.40    0.317   271.27
1999.50    0.317   271.29
1999.60    0.318   271.31
1999.70    0.318   271.33
1999.80    0.319   271.35
1999.90    0.319   271.37
2000.00    0.319   271.39
2000.10    0.320   271.41
2000.20    0.320   271.43
2000.30    0.320   271.45
2000.40    0.321   271.46
2000.50    0.321   271.48
2000.60    0.321   271.50
2000.70    0.322   271.52
2000.80    0.322   271.54
2000.90    0.322   271.56
2001.00    0.322   271.58
2001.10    0.323   271.60
2001.20    0.323   271.61
2001.30    0.323   271.63
2001.40    0.323   271.65
2001.50    0.323   271.67
2001.60    0.324   271.69
2001.70    0.324   271.71
2001.80    0.324   271.73
2001.90    0.324   271.74
2002.00    0.324   271.76
2002.10    0.324   271.78
2002.20    0.325   271.80
2002.30    0.325   271.82
2002.40    0.325   271.84
2002.50    0.325   271.85
2002.60    0.325   271.87
2002.70    0.325   271.89
2002.80    0.325   271.91
2002.90    0.325   271.93
2003.00    0.325   271.95
2003.10    0.325   271.96
2003.20    0.325   271.98
2003.30    0.325   272.00
2003.40    0.325   272.02
2003.50    0.325   272.04
2003.60    0.325   272.06
2003.70    0.325   272.07
2003.80    0.325   272.09
2003.90    0.325   272.11
2004.00    0.325   272.13
2004.10    0.325   272.15
2004.20    0.325   272.17
2004.30    0.325   272.18
2004.40    0.324   272.20
2004.50    0.324   272.22
2004.60    0.324   272.24
2004.70    0.324   272.26
2004.80    0.324   272.28
2004.90    0.324   272.30
2005.00    0.324   272.31
2005.10    0.323   272.33
2005.20    0.323   272.35
2005.30    0.323   272.37
2005.40    0.323   272.39
2005.50    0.322   272.41
2005.60    0.322   272.43
2005.70    0.322   272.44
2005.80    0.322   272.46
2005.90    0.321   272.48
2006.00    0.321   272.50
2006.10    0.321   272.52
2006.20    0.320   272.54
2006.30    0.320   272.56
2006.40    0.320   272.58
2006.50    0.319   272.59
2006.60    0.319   272.61
2006.70    0.318   272.63
2006.80    0.318   272.65
2006.90    0.318   272.67
2007.00    0.317   272.69
2007.10    0.317   272.71
2007.20    0.316   272.73
2007.30    0.316   272.75
2007.40    0.315   272.77
2007.50    0.315   272.79
2007.60    0.314   272.81
2007.70    0.314   272.83
2007.80    0.313   272.85
2007.90    0.313   272.87
2008.00    0.312   272.89
2008.10    0.312   272.91
2008.20    0.311   272.93
2008.30    0.311   272.95
2008.40    0.310   272.97
2008.50    0.309   272.99
2008.60    0.309   273.01
2008.70    0.308   273.03
2008.80    0.307   273.05
2008.90    0.307   273.07
2009.00    0.306   273.09
2009.10    0.305   273.11
2009.20    0.305   273.13
2009.30    0.304   273.15
2009.40    0.303   273.17
2009.50    0.303   273.19
2009.60    0.302   273.21
2009.70    0.301   273.24
2009.80    0.300   273.26
2009.90    0.299   273.28
2010.00    0.299   273.30
2010.10    0.298   273.32
2010.20    0.297   273.34
2010.30    0.296   273.37
2010.40    0.295   273.39
2010.50    0.294   273.41
2010.60    0.293   273.43
2010.70    0.293   273.46
2010.80    0.292   273.48
2010.90    0.291   273.50
2011.00    0.290   273.52
2011.10    0.289   273.55
2011.20    0.288   273.57
2011.30    0.287   273.59
2011.40    0.286   273.62
2011.50    0.285   273.64
2011.60    0.284   273.67
2011.70    0.283   273.69
2011.80    0.282   273.71
2011.90    0.281   273.74
2012.00    0.279   273.76
2012.10    0.278   273.79
2012.20    0.277   273.81
2012.30    0.276   273.84
2012.40    0.275   273.87
2012.50    0.274   273.89
2012.60    0.273   273.92
2012.70    0.271   273.94
2012.80    0.270   273.97
2012.90    0.269   274.00
2013.00    0.268   274.02
2013.10    0.266   274.05
2013.20    0.265   274.08
2013.30    0.264   274.11
2013.40    0.263   274.13
2013.50    0.261   274.16
2013.60    0.260   274.19
2013.70    0.259   274.22
2013.80    0.257   274.25
2013.90    0.256   274.28
2014.00    0.254   274.31
2014.10    0.253   274.34
2014.20    0.252   274.37
2014.30    0.250   274.40
2014.40    0.249   274.43
2014.50    0.247   274.46
2014.60    0.246   274.49
2014.70    0.244   274.53
2014.80    0.243   274.56
2014.90    0.241   274.59
2015.00    0.239   274.63
2015.10    0.238   274.66
2015.20    0.236   274.69
2015.30    0.235   274.73
2015.40    0.233   274.76
2015.50    0.231   274.80
2015.60    0.230   274.84
2015.70    0.228   274.87
2015.80    0.226   274.91
2015.90    0.225   274.95
2016.00    0.223   274.99
2016.10    0.221   275.03
2016.20    0.219   275.07
2016.30    0.217   275.11
2016.40    0.216   275.15
2016.50    0.214   275.19
2016.60    0.212   275.24
2016.70    0.210   275.28
2016.80    0.208   275.32
2016.90    0.206   275.37
2017.00    0.204   275.41
2017.10    0.202   275.46
2017.20    0.200   275.51
2017.30    0.198   275.56
2017.40    0.196   275.61
2017.50    0.194   275.66
2017.60    0.192   275.71
2017.70    0.190   275.76
2017.80    0.188   275.82
2017.90    0.186   275.87
2018.00    0.184   275.93
2018.10    0.182   275.99
2018.20    0.180   276.05
2018.30    0.177   276.11
2018.40    0.175   276.17
2018.50    0.173   276.23
2018.60    0.171   276.30
2018.70    0.168   276.37
2018.80    0.166   276.44
2018.90    0.164   276.51
2019.00    0.161   276.58
2019.10    0.159   276.66
2019.20    0.157   276.74
2019.30    0.154   276.82
2019.40    0.152   276.90
2019.50    0.149   276.98
2019.60    0.147   277.07
2019.70    0.144   277.16
2019.80    0.142   277.26
2019.90    0.139   277.36
2020.00    0.137   277.46
2020.10    0.134   277.56
2020.20    0.132   277.67
2020.30    0.129   277.79
2020.40    0.126   277.91
2020.50    0.124   278.03
2020.60    0.121   278.16
2020.70    0.118   278.30
2020.80    0.115   278.44
2020.90    0.113   278.59
2021.00    0.110   278.75
2021.10    0.107   278.91
2021.20    0.104   279.08
2021.30    0.101   279.27
2021.40    0.098   279.46
2021.50    0.096   279.67
2021.60    0.093   279.89
2021.70    0.090   280.12
2021.80    0.087   280.37
2021.90    0.084   280.64
2022.00    0.081   280.92
2022.10    0.078   281.23
2022.20    0.075   281.57
2022.30    0.072   281.93
2022.40    0.068   282.33
2022.50    0.065   282.76
2022.60    0.062   283.24
2022.70    0.059   283.76
2022.80    0.056   284.35
2022.90    0.053   285.01
2023.00    0.050   285.75
2023.10    0.046   286.60
2023.20    0.043   287.57
2023.30    0.040   288.69
2023.40    0.037   290.01
2023.50    0.034   291.59
2023.60    0.030   293.49
2023.70    0.027   295.84
2023.80    0.024   298.81
2023.90    0.021   302.64
2024.00    0.018   307.74
2024.10    0.015   314.73
2024.20    0.013   324.53
2024.30    0.011   338.24
2024.40    0.010   356.12
2024.50    0.010    15.83
2024.60    0.011    33.31
2024.70    0.013    46.56
2024.80    0.016    56.02
2024.90    0.018    62.77
2025.00    0.021    67.71
2025.10    0.024    71.44
2025.20    0.027    74.34
2025.30    0.031    76.65
2025.40    0.034    78.53
2025.50    0.037    80.08
2025.60    0.040    81.40
2025.70    0.043    82.52
2025.80    0.046    83.50
2025.90    0.049    84.35
2026.00    0.052    85.10
2026.10    0.055    85.78
2026.20    0.058    86.39
2026.30    0.061    86.94
2026.40    0.064    87.44
2026.50    0.066    87.90
2026.60    0.069    88.33
2026.70    0.071    88.72
2026.80    0.074    89.09
2026.90    0.076    89.44
2027.00    0.078    89.77
2027.10    0.080    90.08
2027.20    0.082    90.37
2027.30    0.084    90.66
2027.40    0.085    90.93
2027.50    0.087    91.19
2027.60    0.088    91.44
2027.70    0.090    91.69
2027.80    0.091    91.93
2027.90    0.092    92.16
2028.00    0.092    92.39
2028.10    0.093    92.61
2028.20    0.094    92.84
2028.30    0.094    93.06
2028.40    0.094    93.27
2028.50    0.095    93.49
2028.60    0.095    93.71
2028.70    0.094    93.93
2028.80    0.094    94.14
2028.90    0.094    94.36
2029.00    0.093    94.59
2029.10    0.093    94.81
2029.20    0.092    95.04
2029.30    0.091    95.27
2029.40    0.090    95.50
2029.50    0.089    95.75
2029.60    0.088    95.99
2029.70    0.087    96.25
2029.80    0.086    96.51
2029.90    0.084    96.77
2030.00    0.083    97.05
2030.10    0.081    97.34
2030.20    0.080    97.64
2030.30    0.078    97.95
2030.40    0.077    98.27
2030.50    0.075    98.61
2030.60    0.073    98.97
2030.70    0.071    99.34
2030.80    0.069    99.73
2030.90    0.067   100.15
2031.00    0.065   100.59
2031.10    0.063   101.05
2031.20    0.061   101.55
2031.30    0.059   102.08
2031.40    0.057   102.65
2031.50    0.055   103.26
2031.60    0.053   103.93
2031.70    0.051   104.64
2031.80    0.049   105.42
2031.90    0.047   106.27
2032.00    0.045   107.20
2032.10    0.042   108.23
2032.20    0.040   109.37
2032.30    0.038   110.64
2032.40    0.036   112.06
2032.50    0.034   113.67
2032.60    0.032   115.49
2032.70    0.029   117.58
2032.80    0.027   119.98
2032.90    0.025   122.78
2033.00    0.023   126.05
2033.10    0.022   129.90
2033.20    0.020   134.46
2033.30    0.018   139.88
2033.40    0.017   146.30
2033.50    0.016   153.82
2033.60    0.015   162.41
2033.70    0.014   171.87
2033.80    0.014   181.78
2033.90    0.014   191.58
2034.00    0.015   200.73
2034.10    0.016   208.90
2034.20    0.017   215.96
2034.30    0.019   221.96
2034.40    0.020   227.01
2034.50    0.022   231.27
2034.60    0.024   234.87
2034.70    0.026   237.93
2034.80    0.028   240.55
2034.90    0.030   242.81
2035.00    0.032   244.78
2035.10    0.035   246.50
2035.20    0.037   248.02
2035.30    0.039   249.37
2035.40    0.041   250.57
2035.50    0.043   251.65
2035.60    0.046   252.62
2035.70    0.048   253.51
2035.80    0.050   254.31
2035.90    0.052   255.05
2036.00    0.055   255.72
2036.10    0.057   256.35
2036.20    0.059   256.92
2036.30    0.061   257.46
2036.40    0.064   257.95
2036.50    0.066   258.41
2036.60    0.068   258.85
2036.70    0.070   259.25
2036.80    0.073   259.63
2036.90    0.075   259.99
2037.00    0.077   260.32
2037.10    0.079   260.64
2037.20    0.081   260.94
2037.30    0.084   261.23
2037.40    0.086   261.50
2037.50    0.088   261.76
2037.60    0.090   262.00
2037.70    0.092   262.23
2037.80    0.094   262.46
2037.90    0.097   262.67
2038.00    0.099   262.87
2038.10    0.101   263.07
2038.20    0.103   263.25
2038.30    0.105   263.43
2038.40    0.107   263.61
2038.50    0.109   263.77
2038.60    0.111   263.93
2038.70    0.113   264.08
2038.80    0.115   264.23
2038.90    0.117   264.38
2039.00    0.120   264.51
2039.10    0.122   264.65
2039.20    0.124   264.78
2039.30    0.126   264.90
2039.40    0.128   265.02
2039.50    0.130   265.14
2039.60    0.132   265.25
2039.70    0.134   265.36
2039.80    0.136   265.47
2039.90    0.138   265.57
2040.00    0.139   265.68
2040.10    0.141   265.77
2040.20    0.143   265.87
2040.30    0.145   265.96
2040.40    0.147   266.05
2040.50    0.149   266.14
2040.60    0.151   266.23
2040.70    0.153   266.31
2040.80    0.155   266.39
2040.90    0.157   266.47
2041.00    0.158   266.55
2041.10    0.160   266.63
2041.20    0.162   266.70
2041.30    0.164   266.78
2041.40    0.166   266.85
2041.50    0.168   266.92
2041.60    0.169   266.99
2041.70    0.171   267.05
2041.80    0.173   267.12
2041.90    0.175   267.18
2042.00    0.176   267.25
2042.10    0.178   267.31
2042.20    0.180   267.37
2042.30    0.182   267.43
2042.40    0.183   267.49
2042.50    0.185   267.54
2042.60    0.187   267.60
2042.70    0.188   267.65
2042.80    0.190   267.71
2042.90    0.192   267.76
2043.00    0.193   267.81
2043.10    0.195   267.87
2043.20    0.197   267.92
2043.30    0.198   267.97
2043.40    0.200   268.02
2043.50    0.201   268.06
2043.60    0.203   268.11
2043.70    0.205   268.16
2043.80    0.206   268.20
2043.90    0.208   268.25
2044.00    0.209   268.29
2044.10    0.211   268.34
2044.20    0.212   268.38
2044.30    0.214   268.42
2044.40    0.215   268.47
2044.50    0.217   268.51
2044.60    0.218   268.55
2044.70    0.220   268.59
2044.80    0.221   268.63
2044.90    0.223   268.67
2045.00    0.224   268.71
2045.10    0.225   268.75
2045.20    0.227   268.78
2045.30    0.228   268.82
2045.40    0.230   268.86
2045.50    0.231   268.89
2045.60    0.233   268.93
2045.70    0.234   268.97
2045.80    0.235   269.00
2045.90    0.237   269.04
2046.00    0.238   269.07
2046.10    0.239   269.10
2046.20    0.241   269.14
2046.30    0.242   269.17
2046.40    0.243   269.20
2046.50    0.244   269.24
2046.60    0.246   269.27
2046.70    0.247   269.30
2046.80    0.248   269.33
2046.90    0.250   269.36
2047.00    0.251   269.39
2047.10    0.252   269.43
2047.20    0.253   269.46
2047.30    0.254   269.49
2047.40    0.256   269.52
2047.50    0.257   269.55
2047.60    0.258   269.57
2047.70    0.259   269.60
2047.80    0.260   269.63
2047.90    0.261   269.66
2048.00    0.263   269.69
2048.10    0.264   269.72
2048.20    0.265   269.74
2048.30    0.266   269.77
2048.40    0.267   269.80
2048.50    0.268   269.83
2048.60    0.269   269.85
2048.70    0.270   269.88
2048.80    0.271   269.91
2048.90    0.272   269.93
2049.00    0.273   269.96
2049.10    0.274   269.98
2049.20    0.275   270.01
2049.30    0.276   270.04
2049.40    0.277   270.06
2049.50    0.278   270.09
2049.60    0.279   270.11
2049.70    0.280   270.14
2049.80    0.281   270.16
2049.90    0.282   270.18
2050.00    0.283   270.21
2050.10    0.284   270.23
2050.20    0.285   270.26
2050.30    0.286   270.28
2050.40    0.287   270.30
2050.50    0.288   270.33
2050.60    0.289   270.35
2050.70    0.290   270.37
2050.80    0.290   270.40
2050.90    0.291   270.42
2051.00    0.292   270.44
2051.10    0.293   270.47
2051.20    0.294   270.49
2051.30    0.294   270.51
2051.40    0.295   270.53
2051.50    0.296   270.56
2051.60    0.297   270.58
2051.70    0.298   270.60
2051.80    0.298   270.62
2051.90    0.299   270.64
2052.00    0.300   270.66
2052.10    0.301   270.69
2052.20    0.301   270.71
2052.30    0.302   270.73
2052.40    0.303   270.75
2052.50    0.303   270.77
2052.60    0.304   270.79
2052.70    0.305   270.81
2052.80    0.305   270.83






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 17:15:08



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