Double Star Calculator - Orbit

Orbital Elements for RST1876
WDS: RST1876 WDS ID/Discoverer
P: 61.200 Orbital period (years)
a: 0.194 Semi-major axis (arcseconds)
i: 121.0 Inclination (degrees)
Ω: 70.9 Longitude of ascending node (degrees)
T: 2016.580 Epoch of periastron passage (year)
e: 0.919 Eccentricity
ω: 129.8 Longitude of periastron (degrees)
Start-Year: 1994.4 Year
End-Year: 2055.6 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for RST1876
Position: 160630.93-402700.5 Epoch-2000 right ascension and declination
WDS-ID: 16065-4027 WDS designation
Discoverer Code: RST1876 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 144259 HD catalog number
Hipparcos number: 78915 Hipparcos catalog number
V1: 7.80 Magnitude of the primary
V2: 8.55 Magnitude of the secondary
Equinox: 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: Tok2021f Reference

Double Star Orbit for RST1876



WDS 6th Orbit including measures of RST1876

-- 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 RST1876
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.153   121.51
--------------------------
1994.40    0.282    97.92
1994.50    0.282    97.86
1994.60    0.282    97.81
1994.70    0.282    97.75
1994.80    0.282    97.69
1994.90    0.281    97.64
1995.00    0.281    97.58
1995.10    0.281    97.52
1995.20    0.281    97.47
1995.30    0.281    97.41
1995.40    0.281    97.35
1995.50    0.280    97.29
1995.60    0.280    97.24
1995.70    0.280    97.18
1995.80    0.280    97.12
1995.90    0.279    97.07
1996.00    0.279    97.01
1996.10    0.279    96.95
1996.20    0.279    96.89
1996.30    0.278    96.83
1996.40    0.278    96.78
1996.50    0.278    96.72
1996.60    0.278    96.66
1996.70    0.277    96.60
1996.80    0.277    96.54
1996.90    0.277    96.48
1997.00    0.277    96.43
1997.10    0.276    96.37
1997.20    0.276    96.31
1997.30    0.276    96.25
1997.40    0.275    96.19
1997.50    0.275    96.13
1997.60    0.275    96.07
1997.70    0.275    96.01
1997.80    0.274    95.95
1997.90    0.274    95.89
1998.00    0.274    95.83
1998.10    0.273    95.77
1998.20    0.273    95.71
1998.30    0.273    95.65
1998.40    0.272    95.59
1998.50    0.272    95.53
1998.60    0.271    95.47
1998.70    0.271    95.41
1998.80    0.271    95.35
1998.90    0.270    95.29
1999.00    0.270    95.22
1999.10    0.270    95.16
1999.20    0.269    95.10
1999.30    0.269    95.04
1999.40    0.268    94.98
1999.50    0.268    94.91
1999.60    0.268    94.85
1999.70    0.267    94.79
1999.80    0.267    94.72
1999.90    0.266    94.66
2000.00    0.266    94.60
2000.10    0.265    94.53
2000.20    0.265    94.47
2000.30    0.264    94.41
2000.40    0.264    94.34
2000.50    0.263    94.28
2000.60    0.263    94.21
2000.70    0.263    94.15
2000.80    0.262    94.08
2000.90    0.262    94.02
2001.00    0.261    93.95
2001.10    0.260    93.88
2001.20    0.260    93.82
2001.30    0.259    93.75
2001.40    0.259    93.68
2001.50    0.258    93.62
2001.60    0.258    93.55
2001.70    0.257    93.48
2001.80    0.257    93.41
2001.90    0.256    93.34
2002.00    0.256    93.28
2002.10    0.255    93.21
2002.20    0.254    93.14
2002.30    0.254    93.07
2002.40    0.253    93.00
2002.50    0.253    92.93
2002.60    0.252    92.86
2002.70    0.251    92.79
2002.80    0.251    92.71
2002.90    0.250    92.64
2003.00    0.250    92.57
2003.10    0.249    92.50
2003.20    0.248    92.43
2003.30    0.248    92.35
2003.40    0.247    92.28
2003.50    0.246    92.21
2003.60    0.246    92.13
2003.70    0.245    92.06
2003.80    0.244    91.98
2003.90    0.243    91.91
2004.00    0.243    91.83
2004.10    0.242    91.75
2004.20    0.241    91.68
2004.30    0.241    91.60
2004.40    0.240    91.52
2004.50    0.239    91.44
2004.60    0.238    91.36
2004.70    0.238    91.28
2004.80    0.237    91.20
2004.90    0.236    91.12
2005.00    0.235    91.04
2005.10    0.234    90.96
2005.20    0.234    90.88
2005.30    0.233    90.80
2005.40    0.232    90.71
2005.50    0.231    90.63
2005.60    0.230    90.54
2005.70    0.229    90.46
2005.80    0.228    90.37
2005.90    0.228    90.29
2006.00    0.227    90.20
2006.10    0.226    90.11
2006.20    0.225    90.02
2006.30    0.224    89.93
2006.40    0.223    89.84
2006.50    0.222    89.75
2006.60    0.221    89.66
2006.70    0.220    89.57
2006.80    0.219    89.48
2006.90    0.218    89.38
2007.00    0.217    89.29
2007.10    0.216    89.19
2007.20    0.215    89.10
2007.30    0.214    89.00
2007.40    0.213    88.90
2007.50    0.212    88.80
2007.60    0.211    88.70
2007.70    0.210    88.60
2007.80    0.209    88.50
2007.90    0.208    88.39
2008.00    0.207    88.29
2008.10    0.206    88.18
2008.20    0.205    88.08
2008.30    0.203    87.97
2008.40    0.202    87.86
2008.50    0.201    87.75
2008.60    0.200    87.64
2008.70    0.199    87.52
2008.80    0.198    87.41
2008.90    0.196    87.29
2009.00    0.195    87.18
2009.10    0.194    87.06
2009.20    0.193    86.94
2009.30    0.191    86.81
2009.40    0.190    86.69
2009.50    0.189    86.57
2009.60    0.187    86.44
2009.70    0.186    86.31
2009.80    0.185    86.18
2009.90    0.183    86.05
2010.00    0.182    85.91
2010.10    0.181    85.78
2010.20    0.179    85.64
2010.30    0.178    85.50
2010.40    0.176    85.35
2010.50    0.175    85.21
2010.60    0.173    85.06
2010.70    0.172    84.91
2010.80    0.170    84.75
2010.90    0.169    84.60
2011.00    0.167    84.44
2011.10    0.166    84.27
2011.20    0.164    84.11
2011.30    0.162    83.94
2011.40    0.161    83.77
2011.50    0.159    83.59
2011.60    0.157    83.41
2011.70    0.156    83.23
2011.80    0.154    83.04
2011.90    0.152    82.85
2012.00    0.150    82.65
2012.10    0.148    82.45
2012.20    0.147    82.24
2012.30    0.145    82.03
2012.40    0.143    81.81
2012.50    0.141    81.59
2012.60    0.139    81.36
2012.70    0.137    81.12
2012.80    0.135    80.88
2012.90    0.133    80.63
2013.00    0.131    80.37
2013.10    0.128    80.10
2013.20    0.126    79.82
2013.30    0.124    79.53
2013.40    0.122    79.23
2013.50    0.119    78.92
2013.60    0.117    78.60
2013.70    0.115    78.27
2013.80    0.112    77.92
2013.90    0.110    77.55
2014.00    0.107    77.17
2014.10    0.104    76.76
2014.20    0.102    76.34
2014.30    0.099    75.89
2014.40    0.096    75.42
2014.50    0.093    74.91
2014.60    0.090    74.38
2014.70    0.087    73.81
2014.80    0.084    73.19
2014.90    0.081    72.52
2015.00    0.077    71.80
2015.10    0.074    71.01
2015.20    0.070    70.14
2015.30    0.066    69.18
2015.40    0.062    68.09
2015.50    0.058    66.86
2015.60    0.054    65.43
2015.70    0.050    63.76
2015.80    0.045    61.74
2015.90    0.040    59.24
2016.00    0.035    55.98
2016.10    0.029    51.48
2016.20    0.023    44.70
2016.30    0.017    32.88
2016.40    0.011     7.78
2016.50    0.009   317.53
2016.60    0.013   276.67
2016.70    0.017   256.60
2016.80    0.021   244.33
2016.90    0.023   235.15
2017.00    0.025   227.55
2017.10    0.027   220.91
2017.20    0.028   214.97
2017.30    0.029   209.56
2017.40    0.031   204.61
2017.50    0.032   200.05
2017.60    0.033   195.84
2017.70    0.035   191.95
2017.80    0.036   188.34
2017.90    0.037   185.00
2018.00    0.039   181.89
2018.10    0.040   179.00
2018.20    0.042   176.30
2018.30    0.043   173.79
2018.40    0.045   171.44
2018.50    0.046   169.25
2018.60    0.047   167.19
2018.70    0.049   165.26
2018.80    0.051   163.44
2018.90    0.052   161.73
2019.00    0.054   160.12
2019.10    0.055   158.60
2019.20    0.057   157.16
2019.30    0.058   155.80
2019.40    0.060   154.50
2019.50    0.061   153.28
2019.60    0.063   152.11
2019.70    0.064   150.99
2019.80    0.066   149.93
2019.90    0.067   148.92
2020.00    0.069   147.95
2020.10    0.070   147.03
2020.20    0.072   146.14
2020.30    0.073   145.29
2020.40    0.075   144.47
2020.50    0.076   143.69
2020.60    0.078   142.93
2020.70    0.079   142.20
2020.80    0.081   141.50
2020.90    0.082   140.83
2021.00    0.084   140.18
2021.10    0.085   139.55
2021.20    0.087   138.94
2021.30    0.088   138.35
2021.40    0.090   137.78
2021.50    0.091   137.23
2021.60    0.092   136.70
2021.70    0.094   136.18
2021.80    0.095   135.68
2021.90    0.097   135.19
2022.00    0.098   134.71
2022.10    0.099   134.25
2022.20    0.101   133.80
2022.30    0.102   133.37
2022.40    0.104   132.94
2022.50    0.105   132.53
2022.60    0.106   132.13
2022.70    0.108   131.73
2022.80    0.109   131.35
2022.90    0.110   130.97
2023.00    0.112   130.61
2023.10    0.113   130.25
2023.20    0.114   129.90
2023.30    0.115   129.56
2023.40    0.117   129.23
2023.50    0.118   128.90
2023.60    0.119   128.58
2023.70    0.121   128.27
2023.80    0.122   127.96
2023.90    0.123   127.66
2024.00    0.124   127.37
2024.10    0.126   127.08
2024.20    0.127   126.80
2024.30    0.128   126.52
2024.40    0.129   126.25
2024.50    0.131   125.99
2024.60    0.132   125.72
2024.70    0.133   125.47
2024.80    0.134   125.22
2024.90    0.135   124.97
2025.00    0.136   124.72
2025.10    0.138   124.49
2025.20    0.139   124.25
2025.30    0.140   124.02
2025.40    0.141   123.79
2025.50    0.142   123.57
2025.60    0.143   123.35
2025.70    0.145   123.13
2025.80    0.146   122.92
2025.90    0.147   122.71
2026.00    0.148   122.50
2026.10    0.149   122.30
2026.20    0.150   122.10
2026.30    0.151   121.90
2026.40    0.152   121.70
2026.50    0.153   121.51
2026.60    0.155   121.32
2026.70    0.156   121.13
2026.80    0.157   120.95
2026.90    0.158   120.77
2027.00    0.159   120.59
2027.10    0.160   120.41
2027.20    0.161   120.24
2027.30    0.162   120.07
2027.40    0.163   119.90
2027.50    0.164   119.73
2027.60    0.165   119.56
2027.70    0.166   119.40
2027.80    0.167   119.24
2027.90    0.168   119.08
2028.00    0.169   118.92
2028.10    0.170   118.76
2028.20    0.171   118.61
2028.30    0.172   118.45
2028.40    0.173   118.30
2028.50    0.174   118.16
2028.60    0.175   118.01
2028.70    0.176   117.86
2028.80    0.177   117.72
2028.90    0.178   117.58
2029.00    0.179   117.43
2029.10    0.180   117.29
2029.20    0.181   117.16
2029.30    0.182   117.02
2029.40    0.183   116.88
2029.50    0.184   116.75
2029.60    0.185   116.62
2029.70    0.186   116.49
2029.80    0.186   116.36
2029.90    0.187   116.23
2030.00    0.188   116.10
2030.10    0.189   115.97
2030.20    0.190   115.85
2030.30    0.191   115.72
2030.40    0.192   115.60
2030.50    0.193   115.48
2030.60    0.194   115.36
2030.70    0.194   115.24
2030.80    0.195   115.12
2030.90    0.196   115.00
2031.00    0.197   114.89
2031.10    0.198   114.77
2031.20    0.199   114.66
2031.30    0.200   114.55
2031.40    0.200   114.43
2031.50    0.201   114.32
2031.60    0.202   114.21
2031.70    0.203   114.10
2031.80    0.204   113.99
2031.90    0.204   113.88
2032.00    0.205   113.78
2032.10    0.206   113.67
2032.20    0.207   113.57
2032.30    0.208   113.46
2032.40    0.208   113.36
2032.50    0.209   113.25
2032.60    0.210   113.15
2032.70    0.211   113.05
2032.80    0.212   112.95
2032.90    0.212   112.85
2033.00    0.213   112.75
2033.10    0.214   112.65
2033.20    0.215   112.55
2033.30    0.215   112.46
2033.40    0.216   112.36
2033.50    0.217   112.26
2033.60    0.218   112.17
2033.70    0.218   112.07
2033.80    0.219   111.98
2033.90    0.220   111.89
2034.00    0.221   111.79
2034.10    0.221   111.70
2034.20    0.222   111.61
2034.30    0.223   111.52
2034.40    0.223   111.43
2034.50    0.224   111.34
2034.60    0.225   111.25
2034.70    0.225   111.16
2034.80    0.226   111.07
2034.90    0.227   110.99
2035.00    0.227   110.90
2035.10    0.228   110.81
2035.20    0.229   110.73
2035.30    0.229   110.64
2035.40    0.230   110.55
2035.50    0.231   110.47
2035.60    0.231   110.39
2035.70    0.232   110.30
2035.80    0.233   110.22
2035.90    0.233   110.14
2036.00    0.234   110.05
2036.10    0.235   109.97
2036.20    0.235   109.89
2036.30    0.236   109.81
2036.40    0.237   109.73
2036.50    0.237   109.65
2036.60    0.238   109.57
2036.70    0.238   109.49
2036.80    0.239   109.41
2036.90    0.240   109.33
2037.00    0.240   109.25
2037.10    0.241   109.18
2037.20    0.241   109.10
2037.30    0.242   109.02
2037.40    0.242   108.95
2037.50    0.243   108.87
2037.60    0.244   108.79
2037.70    0.244   108.72
2037.80    0.245   108.64
2037.90    0.245   108.57
2038.00    0.246   108.49
2038.10    0.246   108.42
2038.20    0.247   108.34
2038.30    0.248   108.27
2038.40    0.248   108.20
2038.50    0.249   108.13
2038.60    0.249   108.05
2038.70    0.250   107.98
2038.80    0.250   107.91
2038.90    0.251   107.84
2039.00    0.251   107.77
2039.10    0.252   107.69
2039.20    0.252   107.62
2039.30    0.253   107.55
2039.40    0.253   107.48
2039.50    0.254   107.41
2039.60    0.254   107.34
2039.70    0.255   107.27
2039.80    0.255   107.20
2039.90    0.256   107.14
2040.00    0.256   107.07
2040.10    0.257   107.00
2040.20    0.257   106.93
2040.30    0.258   106.86
2040.40    0.258   106.79
2040.50    0.258   106.73
2040.60    0.259   106.66
2040.70    0.259   106.59
2040.80    0.260   106.53
2040.90    0.260   106.46
2041.00    0.261   106.39
2041.10    0.261   106.33
2041.20    0.262   106.26
2041.30    0.262   106.20
2041.40    0.262   106.13
2041.50    0.263   106.07
2041.60    0.263   106.00
2041.70    0.264   105.94
2041.80    0.264   105.87
2041.90    0.264   105.81
2042.00    0.265   105.74
2042.10    0.265   105.68
2042.20    0.266   105.61
2042.30    0.266   105.55
2042.40    0.266   105.49
2042.50    0.267   105.42
2042.60    0.267   105.36
2042.70    0.267   105.30
2042.80    0.268   105.24
2042.90    0.268   105.17
2043.00    0.269   105.11
2043.10    0.269   105.05
2043.20    0.269   104.99
2043.30    0.270   104.92
2043.40    0.270   104.86
2043.50    0.270   104.80
2043.60    0.271   104.74
2043.70    0.271   104.68
2043.80    0.271   104.62
2043.90    0.272   104.56
2044.00    0.272   104.49
2044.10    0.272   104.43
2044.20    0.273   104.37
2044.30    0.273   104.31
2044.40    0.273   104.25
2044.50    0.274   104.19
2044.60    0.274   104.13
2044.70    0.274   104.07
2044.80    0.274   104.01
2044.90    0.275   103.95
2045.00    0.275   103.89
2045.10    0.275   103.83
2045.20    0.276   103.78
2045.30    0.276   103.72
2045.40    0.276   103.66
2045.50    0.276   103.60
2045.60    0.277   103.54
2045.70    0.277   103.48
2045.80    0.277   103.42
2045.90    0.277   103.36
2046.00    0.278   103.30
2046.10    0.278   103.25
2046.20    0.278   103.19
2046.30    0.278   103.13
2046.40    0.279   103.07
2046.50    0.279   103.01
2046.60    0.279   102.96
2046.70    0.279   102.90
2046.80    0.279   102.84
2046.90    0.280   102.78
2047.00    0.280   102.73
2047.10    0.280   102.67
2047.20    0.280   102.61
2047.30    0.280   102.55
2047.40    0.281   102.50
2047.50    0.281   102.44
2047.60    0.281   102.38
2047.70    0.281   102.33
2047.80    0.281   102.27
2047.90    0.281   102.21
2048.00    0.282   102.16
2048.10    0.282   102.10
2048.20    0.282   102.04
2048.30    0.282   101.99
2048.40    0.282   101.93
2048.50    0.282   101.87
2048.60    0.283   101.82
2048.70    0.283   101.76
2048.80    0.283   101.70
2048.90    0.283   101.65
2049.00    0.283   101.59
2049.10    0.283   101.54
2049.20    0.283   101.48
2049.30    0.283   101.42
2049.40    0.284   101.37
2049.50    0.284   101.31
2049.60    0.284   101.26
2049.70    0.284   101.20
2049.80    0.284   101.14
2049.90    0.284   101.09
2050.00    0.284   101.03
2050.10    0.284   100.98
2050.20    0.284   100.92
2050.30    0.284   100.87
2050.40    0.284   100.81
2050.50    0.285   100.76
2050.60    0.285   100.70
2050.70    0.285   100.64
2050.80    0.285   100.59
2050.90    0.285   100.53
2051.00    0.285   100.48
2051.10    0.285   100.42
2051.20    0.285   100.37
2051.30    0.285   100.31
2051.40    0.285   100.26
2051.50    0.285   100.20
2051.60    0.285   100.15
2051.70    0.285   100.09
2051.80    0.285   100.03
2051.90    0.285    99.98
2052.00    0.285    99.92
2052.10    0.285    99.87
2052.20    0.285    99.81
2052.30    0.285    99.76
2052.40    0.285    99.70
2052.50    0.285    99.65
2052.60    0.285    99.59
2052.70    0.285    99.54
2052.80    0.285    99.48
2052.90    0.285    99.43
2053.00    0.285    99.37
2053.10    0.285    99.32
2053.20    0.285    99.26
2053.30    0.285    99.20
2053.40    0.285    99.15
2053.50    0.285    99.09
2053.60    0.285    99.04
2053.70    0.284    98.98
2053.80    0.284    98.93
2053.90    0.284    98.87
2054.00    0.284    98.82
2054.10    0.284    98.76
2054.20    0.284    98.70
2054.30    0.284    98.65
2054.40    0.284    98.59
2054.50    0.284    98.54
2054.60    0.284    98.48
2054.70    0.284    98.42
2054.80    0.283    98.37
2054.90    0.283    98.31
2055.00    0.283    98.26
2055.10    0.283    98.20
2055.20    0.283    98.14
2055.30    0.283    98.09
2055.40    0.283    98.03
2055.50    0.282    97.98






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 17:22:57



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