Double Star Calculator - Orbit

Orbital Elements for RST3972AA,AB

WDS:	RST3972AA,AB	WDS ID/Discoverer
P:	15.280	Orbital period (years)
a:	0.1473	Semi-major axis (arcseconds)
i:	24.6	Inclination (degrees)
Ω:	61.6	Longitude of ascending node (degrees)
T:	2021.269	Epoch of periastron passage (year)
e:	0.5726	Eccentricity
ω:	24.3	Longitude of periastron (degrees)
Start-Year:	2017.36	Year
End-Year:	2032.64	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST3972AA,AB
Position:	172357.87-092129.7	Epoch-2000 right ascension and declination
WDS-ID:	17240-0921	WDS designation
Discoverer Code:	RST3972AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	157498	HD catalog number
Hipparcos number:	85141	Hipparcos catalog number
V1:	8.5	Magnitude of the primary
V2:	8.7	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	1	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Doc2022e	Reference

Double Star Orbit for RST3972AA,AB

WDS 6th Orbit including measures of RST3972AA,AB

-- 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 RST3972AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.215   245.70
--------------------------
2017.36    0.178   296.63
2017.46    0.175   297.86
2017.56    0.173   299.11
2017.66    0.170   300.41
2017.76    0.167   301.75
2017.86    0.165   303.13
2017.96    0.162   304.56
2018.06    0.159   306.04
2018.16    0.156   307.58
2018.26    0.153   309.18
2018.36    0.150   310.84
2018.46    0.147   312.57
2018.56    0.144   314.38
2018.66    0.140   316.27
2018.76    0.137   318.25
2018.86    0.134   320.33
2018.96    0.130   322.51
2019.06    0.127   324.81
2019.16    0.124   327.24
2019.26    0.120   329.81
2019.36    0.117   332.53
2019.46    0.113   335.42
2019.56    0.110   338.49
2019.66    0.106   341.77
2019.76    0.102   345.28
2019.86    0.099   349.04
2019.96    0.095   353.07
2020.06    0.092   357.41
2020.16    0.089     2.08
2020.26    0.085     7.11
2020.36    0.082    12.54
2020.46    0.079    18.40
2020.56    0.076    24.72
2020.66    0.073    31.52
2020.76    0.071    38.84
2020.86    0.069    46.69
2020.96    0.066    55.07
2021.06    0.065    63.95
2021.16    0.063    73.30
2021.26    0.062    83.03
2021.36    0.062    93.01
2021.46    0.062   103.08
2021.56    0.062   113.04
2021.66    0.064   122.68
2021.76    0.066   131.83
2021.86    0.068   140.36
2021.96    0.071   148.21
2022.06    0.075   155.36
2022.16    0.079   161.85
2022.26    0.083   167.71
2022.36    0.087   173.00
2022.46    0.091   177.79
2022.56    0.096   182.14
2022.66    0.100   186.11
2022.76    0.105   189.73
2022.86    0.109   193.06
2022.96    0.114   196.12
2023.06    0.118   198.96
2023.16    0.122   201.60
2023.26    0.127   204.06
2023.36    0.131   206.36
2023.46    0.135   208.53
2023.56    0.139   210.57
2023.66    0.143   212.49
2023.76    0.146   214.32
2023.86    0.150   216.06
2023.96    0.154   217.71
2024.06    0.157   219.29
2024.16    0.160   220.81
2024.26    0.164   222.26
2024.36    0.167   223.65
2024.46    0.170   225.00
2024.56    0.173   226.29
2024.66    0.176   227.54
2024.76    0.179   228.76
2024.86    0.181   229.93
2024.96    0.184   231.07
2025.06    0.187   232.18
2025.16    0.189   233.26
2025.26    0.192   234.31
2025.36    0.194   235.34
2025.46    0.196   236.34
2025.56    0.198   237.32
2025.66    0.200   238.28
2025.76    0.202   239.22
2025.86    0.204   240.14
2025.96    0.206   241.05
2026.06    0.208   241.94
2026.16    0.209   242.82
2026.26    0.211   243.68
2026.36    0.213   244.53
2026.46    0.214   245.37
2026.56    0.215   246.19
2026.66    0.217   247.01
2026.76    0.218   247.82
2026.86    0.219   248.62
2026.96    0.220   249.41
2027.06    0.221   250.19
2027.16    0.222   250.96
2027.26    0.223   251.73
2027.36    0.224   252.50
2027.46    0.225   253.25
2027.56    0.225   254.01
2027.66    0.226   254.76
2027.76    0.226   255.50
2027.86    0.227   256.24
2027.96    0.227   256.98
2028.06    0.228   257.72
2028.16    0.228   258.45
2028.26    0.228   259.18
2028.36    0.228   259.91
2028.46    0.229   260.64
2028.56    0.229   261.37
2028.66    0.229   262.10
2028.76    0.228   262.83
2028.86    0.228   263.56
2028.96    0.228   264.29
2029.06    0.228   265.03
2029.16    0.228   265.76
2029.26    0.227   266.50
2029.36    0.227   267.24
2029.46    0.226   267.98
2029.56    0.226   268.73
2029.66    0.225   269.48
2029.76    0.224   270.24
2029.86    0.223   271.00
2029.96    0.223   271.76
2030.06    0.222   272.53
2030.16    0.221   273.31
2030.26    0.220   274.10
2030.36    0.219   274.89
2030.46    0.218   275.69
2030.56    0.216   276.50
2030.66    0.215   277.32
2030.76    0.214   278.15
2030.86    0.213   278.98
2030.96    0.211   279.83
2031.06    0.210   280.70
2031.16    0.208   281.57
2031.26    0.206   282.46
2031.36    0.205   283.36
2031.46    0.203   284.28
2031.56    0.201   285.21
2031.66    0.199   286.16
2031.76    0.197   287.13
2031.86    0.195   288.11
2031.96    0.193   289.12
2032.06    0.191   290.15
2032.16    0.189   291.20
2032.26    0.187   292.28
2032.36    0.185   293.39
2032.46    0.182   294.52
2032.56    0.180   295.68

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 17:38:03