Double Star Calculator - Orbit

Orbital Elements for RST3578AB

WDS:	RST3578AB	WDS ID/Discoverer
P:	29.370	Orbital period (years)
a:	0.222	Semi-major axis (arcseconds)
i:	59.3	Inclination (degrees)
Ω:	93.3	Longitude of ascending node (degrees)
T:	2017.410	Epoch of periastron passage (year)
e:	0.47	Eccentricity
ω:	216.8	Longitude of periastron (degrees)
Start-Year:	2010.315	Year
End-Year:	2039.685	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST3578AB
Position:	081545.12-102654.4	Epoch-2000 right ascension and declination
WDS-ID:	08158-1027	WDS designation
Discoverer Code:	RST3578AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	69247	HD catalog number
Hipparcos number:	40465	Hipparcos catalog number
V1:	10.1	Magnitude of the primary
V2:	10.1	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	Tok2020e	Reference

Double Star Orbit for RST3578AB

WDS 6th Orbit including measures of RST3578AB

-- 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 RST3578AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.290    96.67
--------------------------
2010.32    0.138   165.95
2010.41    0.136   167.40
2010.51    0.135   168.89
2010.61    0.133   170.41
2010.71    0.131   171.97
2010.81    0.130   173.56
2010.91    0.129   175.19
2011.01    0.127   176.86
2011.11    0.126   178.55
2011.21    0.125   180.29
2011.31    0.124   182.05
2011.41    0.123   183.85
2011.51    0.122   185.67
2011.61    0.121   187.53
2011.71    0.120   189.41
2011.81    0.119   191.31
2011.91    0.119   193.24
2012.01    0.118   195.18
2012.11    0.118   197.15
2012.21    0.117   199.12
2012.31    0.117   201.11
2012.41    0.117   203.11
2012.51    0.117   205.11
2012.61    0.117   207.11
2012.71    0.117   209.12
2012.81    0.117   211.12
2012.91    0.117   213.12
2013.01    0.117   215.10
2013.11    0.118   217.08
2013.21    0.118   219.04
2013.31    0.118   220.99
2013.41    0.119   222.92
2013.51    0.120   224.83
2013.61    0.120   226.72
2013.71    0.121   228.60
2013.81    0.122   230.45
2013.91    0.122   232.27
2014.01    0.123   234.08
2014.11    0.124   235.86
2014.21    0.125   237.62
2014.31    0.126   239.35
2014.41    0.126   241.07
2014.51    0.127   242.76
2014.61    0.128   244.44
2014.71    0.129   246.09
2014.81    0.129   247.73
2014.91    0.130   249.35
2015.01    0.130   250.95
2015.11    0.131   252.55
2015.21    0.131   254.13
2015.31    0.132   255.71
2015.41    0.132   257.28
2015.51    0.132   258.84
2015.61    0.132   260.41
2015.71    0.132   261.98
2015.81    0.131   263.55
2015.91    0.131   265.14
2016.01    0.130   266.74
2016.11    0.129   268.35
2016.21    0.128   269.99
2016.31    0.127   271.67
2016.41    0.126   273.37
2016.51    0.124   275.12
2016.61    0.122   276.92
2016.71    0.120   278.77
2016.81    0.118   280.69
2016.91    0.115   282.69
2017.01    0.113   284.78
2017.11    0.110   286.98
2017.21    0.107   289.29
2017.31    0.104   291.74
2017.41    0.101   294.34
2017.51    0.097   297.11
2017.61    0.094   300.09
2017.71    0.091   303.28
2017.81    0.087   306.73
2017.91    0.084   310.44
2018.01    0.081   314.45
2018.11    0.078   318.77
2018.21    0.075   323.42
2018.31    0.073   328.39
2018.41    0.071   333.66
2018.51    0.069   339.19
2018.61    0.068   344.92
2018.71    0.068   350.78
2018.81    0.068   356.67
2018.91    0.069     2.50
2019.01    0.070     8.16
2019.11    0.072    13.59
2019.21    0.074    18.72
2019.31    0.077    23.53
2019.41    0.080    27.99
2019.51    0.083    32.12
2019.61    0.087    35.91
2019.71    0.090    39.39
2019.81    0.094    42.57
2019.91    0.099    45.50
2020.01    0.103    48.19
2020.11    0.107    50.66
2020.21    0.112    52.93
2020.31    0.116    55.04
2020.41    0.120    56.99
2020.51    0.125    58.79
2020.61    0.129    60.48
2020.71    0.134    62.05
2020.81    0.138    63.52
2020.91    0.143    64.90
2021.01    0.147    66.20
2021.11    0.151    67.42
2021.21    0.156    68.58
2021.31    0.160    69.67
2021.41    0.164    70.71
2021.51    0.168    71.70
2021.61    0.172    72.65
2021.71    0.176    73.54
2021.81    0.180    74.40
2021.91    0.184    75.23
2022.01    0.187    76.02
2022.11    0.191    76.78
2022.21    0.195    77.51
2022.31    0.198    78.21
2022.41    0.202    78.89
2022.51    0.205    79.55
2022.61    0.209    80.19
2022.71    0.212    80.80
2022.81    0.215    81.40
2022.91    0.218    81.98
2023.01    0.221    82.54
2023.11    0.224    83.09
2023.21    0.227    83.63
2023.31    0.230    84.15
2023.41    0.233    84.65
2023.51    0.236    85.15
2023.61    0.238    85.63
2023.71    0.241    86.11
2023.81    0.244    86.57
2023.91    0.246    87.03
2024.01    0.248    87.47
2024.11    0.251    87.91
2024.21    0.253    88.34
2024.31    0.255    88.76
2024.41    0.258    89.17
2024.51    0.260    89.58
2024.61    0.262    89.98
2024.71    0.264    90.37
2024.81    0.266    90.76
2024.91    0.267    91.15
2025.01    0.269    91.52
2025.11    0.271    91.90
2025.21    0.273    92.26
2025.31    0.274    92.63
2025.41    0.276    92.99
2025.51    0.278    93.34
2025.61    0.279    93.69
2025.71    0.280    94.04
2025.81    0.282    94.39
2025.91    0.283    94.73
2026.01    0.284    95.07
2026.11    0.286    95.40
2026.21    0.287    95.73
2026.31    0.288    96.06
2026.41    0.289    96.39
2026.51    0.290    96.72
2026.61    0.291    97.04
2026.71    0.292    97.36
2026.81    0.293    97.68
2026.91    0.294    97.99
2027.01    0.294    98.31
2027.11    0.295    98.62
2027.21    0.296    98.94
2027.31    0.296    99.25
2027.41    0.297    99.56
2027.51    0.297    99.86
2027.61    0.298   100.17
2027.71    0.298   100.48
2027.81    0.299   100.78
2027.91    0.299   101.09
2028.01    0.299   101.39
2028.11    0.300   101.69
2028.21    0.300   102.00
2028.31    0.300   102.30
2028.41    0.300   102.60
2028.51    0.300   102.90
2028.61    0.301   103.20
2028.71    0.301   103.51
2028.81    0.301   103.81
2028.91    0.300   104.11
2029.01    0.300   104.41
2029.11    0.300   104.71
2029.21    0.300   105.01
2029.31    0.300   105.32
2029.41    0.300   105.62
2029.51    0.299   105.92
2029.61    0.299   106.23
2029.71    0.299   106.53
2029.81    0.298   106.84
2029.91    0.298   107.14
2030.01    0.297   107.45
2030.11    0.297   107.76
2030.21    0.296   108.07
2030.31    0.296   108.38
2030.41    0.295   108.69
2030.51    0.294   109.01
2030.61    0.294   109.32
2030.71    0.293   109.64
2030.81    0.292   109.95
2030.91    0.291   110.27
2031.01    0.291   110.60
2031.11    0.290   110.92
2031.21    0.289   111.24
2031.31    0.288   111.57
2031.41    0.287   111.90
2031.51    0.286   112.23
2031.61    0.285   112.57
2031.71    0.284   112.90
2031.81    0.283   113.24
2031.91    0.282   113.58
2032.01    0.281   113.93
2032.11    0.279   114.27
2032.21    0.278   114.62
2032.31    0.277   114.98
2032.41    0.276   115.33
2032.51    0.275   115.69
2032.61    0.273   116.06
2032.71    0.272   116.42
2032.81    0.270   116.79
2032.91    0.269   117.17
2033.01    0.268   117.54
2033.11    0.266   117.93
2033.21    0.265   118.31
2033.31    0.263   118.70
2033.41    0.262   119.10
2033.51    0.260   119.50
2033.61    0.259   119.90
2033.71    0.257   120.31
2033.81    0.255   120.73
2033.91    0.254   121.15
2034.01    0.252   121.58
2034.11    0.250   122.01
2034.21    0.248   122.45
2034.31    0.247   122.89
2034.41    0.245   123.34
2034.51    0.243   123.80
2034.61    0.241   124.26
2034.71    0.239   124.73
2034.81    0.238   125.21
2034.91    0.236   125.70
2035.01    0.234   126.19
2035.11    0.232   126.69
2035.21    0.230   127.20
2035.31    0.228   127.72
2035.41    0.226   128.25
2035.51    0.224   128.79
2035.61    0.222   129.33
2035.71    0.220   129.89
2035.81    0.218   130.46
2035.91    0.216   131.04
2036.01    0.214   131.63
2036.11    0.212   132.23
2036.21    0.210   132.84
2036.31    0.208   133.47
2036.41    0.205   134.11
2036.51    0.203   134.76
2036.61    0.201   135.42
2036.71    0.199   136.10
2036.81    0.197   136.80
2036.91    0.195   137.51
2037.01    0.193   138.23
2037.11    0.190   138.97
2037.21    0.188   139.73
2037.31    0.186   140.51
2037.41    0.184   141.31
2037.51    0.182   142.12
2037.61    0.180   142.96
2037.71    0.177   143.81
2037.81    0.175   144.69
2037.91    0.173   145.58
2038.01    0.171   146.50
2038.11    0.169   147.45
2038.21    0.167   148.41
2038.31    0.165   149.41
2038.41    0.162   150.43
2038.51    0.160   151.47
2038.61    0.158   152.54
2038.71    0.156   153.65
2038.81    0.154   154.78
2038.91    0.152   155.94
2039.01    0.150   157.13
2039.11    0.148   158.35
2039.21    0.146   159.60
2039.31    0.144   160.89
2039.41    0.143   162.21
2039.51    0.141   163.57
2039.61    0.139   164.96

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 16:06:08