Double Star Calculator - Orbit

Orbital Elements for STT536AB

WDS:	STT536AB	WDS ID/Discoverer
P:	25.900	Orbital period (years)
a:	0.346	Semi-major axis (arcseconds)
i:	90.0	Inclination (degrees)
Ω:	166.6	Longitude of ascending node (degrees)
T:	1977.967	Epoch of periastron passage (year)
e:	0.471	Eccentricity
ω:	260.9	Longitude of periastron (degrees)
Start-Year:	2012.05	Year
End-Year:	2037.95	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT536AB
Position:	225835.08+092124.6	Epoch-2000 right ascension and declination
WDS-ID:	22586+0921	WDS designation
Discoverer Code:	STT536AB	Discover designation and components
ADS number:	16417	Aitken Double Star catalog
HD number:	217166	HD catalog number
Hipparcos number:	113445	Hipparcos catalog number
V1:	7.0	Magnitude of the primary
V2:	7.3	Magnitude of the secondary
Equinox:		Equinox
Date:	2023	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:	Doc2025a	Reference

Double Star Orbit for STT536AB

WDS 6th Orbit including measures of STT536AB

-- 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 STT536AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.277   346.60
--------------------------
2012.05    0.282   166.60
2012.15    0.279   166.60
2012.25    0.276   166.60
2012.35    0.273   166.60
2012.45    0.270   166.60
2012.55    0.266   166.60
2012.65    0.263   166.60
2012.75    0.259   166.60
2012.85    0.256   166.60
2012.95    0.252   166.60
2013.05    0.249   166.60
2013.15    0.245   166.60
2013.25    0.241   166.60
2013.35    0.237   166.60
2013.45    0.233   166.60
2013.55    0.229   166.60
2013.65    0.225   166.60
2013.75    0.221   166.60
2013.85    0.217   166.60
2013.95    0.213   166.60
2014.05    0.209   166.60
2014.15    0.205   166.60
2014.25    0.201   166.60
2014.35    0.196   166.60
2014.45    0.192   166.60
2014.55    0.188   166.60
2014.65    0.183   166.60
2014.75    0.179   166.60
2014.85    0.174   166.60
2014.95    0.170   166.60
2015.05    0.165   166.60
2015.15    0.161   166.60
2015.25    0.156   166.60
2015.35    0.151   166.60
2015.45    0.147   166.60
2015.55    0.142   166.60
2015.65    0.137   166.60
2015.75    0.132   166.60
2015.85    0.128   166.60
2015.95    0.123   166.60
2016.05    0.118   166.60
2016.15    0.113   166.60
2016.25    0.108   166.60
2016.35    0.104   166.60
2016.45    0.099   166.60
2016.55    0.094   166.60
2016.65    0.089   166.60
2016.75    0.084   166.60
2016.85    0.079   166.60
2016.95    0.074   166.60
2017.05    0.069   166.60
2017.15    0.064   166.60
2017.25    0.059   166.60
2017.35    0.054   166.60
2017.45    0.049   166.60
2017.55    0.044   166.60
2017.65    0.039   166.60
2017.75    0.034   166.60
2017.85    0.029   166.60
2017.95    0.023   166.60
2018.05    0.018   166.60
2018.15    0.013   166.60
2018.25    0.008   166.60
2018.35    0.003   166.60
2018.45    0.002   346.60
2018.55    0.007   346.60
2018.65    0.012   346.60
2018.75    0.017   346.60
2018.85    0.022   346.60
2018.95    0.027   346.60
2019.05    0.032   346.60
2019.15    0.038   346.60
2019.25    0.043   346.60
2019.35    0.048   346.60
2019.45    0.053   346.60
2019.55    0.058   346.60
2019.65    0.063   346.60
2019.75    0.068   346.60
2019.85    0.073   346.60
2019.95    0.078   346.60
2020.05    0.083   346.60
2020.15    0.088   346.60
2020.25    0.093   346.60
2020.35    0.097   346.60
2020.45    0.102   346.60
2020.55    0.107   346.60
2020.65    0.112   346.60
2020.75    0.117   346.60
2020.85    0.122   346.60
2020.95    0.126   346.60
2021.05    0.131   346.60
2021.15    0.136   346.60
2021.25    0.140   346.60
2021.35    0.145   346.60
2021.45    0.150   346.60
2021.55    0.154   346.60
2021.65    0.159   346.60
2021.75    0.163   346.60
2021.85    0.168   346.60
2021.95    0.172   346.60
2022.05    0.176   346.60
2022.15    0.181   346.60
2022.25    0.185   346.60
2022.35    0.189   346.60
2022.45    0.193   346.60
2022.55    0.197   346.60
2022.65    0.201   346.60
2022.75    0.205   346.60
2022.85    0.209   346.60
2022.95    0.213   346.60
2023.05    0.217   346.60
2023.15    0.221   346.60
2023.25    0.224   346.60
2023.35    0.228   346.60
2023.45    0.231   346.60
2023.55    0.235   346.60
2023.65    0.238   346.60
2023.75    0.241   346.60
2023.85    0.244   346.60
2023.95    0.247   346.60
2024.05    0.250   346.60
2024.15    0.253   346.60
2024.25    0.256   346.60
2024.35    0.258   346.60
2024.45    0.261   346.60
2024.55    0.263   346.60
2024.65    0.265   346.60
2024.75    0.267   346.60
2024.85    0.269   346.60
2024.95    0.271   346.60
2025.05    0.273   346.60
2025.15    0.274   346.60
2025.25    0.276   346.60
2025.35    0.277   346.60
2025.45    0.278   346.60
2025.55    0.279   346.60
2025.65    0.280   346.60
2025.75    0.280   346.60
2025.85    0.280   346.60
2025.95    0.281   346.60
2026.05    0.280   346.60
2026.15    0.280   346.60
2026.25    0.279   346.60
2026.35    0.279   346.60
2026.45    0.278   346.60
2026.55    0.276   346.60
2026.65    0.275   346.60
2026.75    0.273   346.60
2026.85    0.270   346.60
2026.95    0.268   346.60
2027.05    0.265   346.60
2027.15    0.262   346.60
2027.25    0.258   346.60
2027.35    0.255   346.60
2027.45    0.250   346.60
2027.55    0.246   346.60
2027.65    0.241   346.60
2027.75    0.235   346.60
2027.85    0.229   346.60
2027.95    0.223   346.60
2028.05    0.216   346.60
2028.15    0.209   346.60
2028.25    0.201   346.60
2028.35    0.193   346.60
2028.45    0.184   346.60
2028.55    0.175   346.60
2028.65    0.165   346.60
2028.75    0.155   346.60
2028.85    0.145   346.60
2028.95    0.134   346.60
2029.05    0.122   346.60
2029.15    0.110   346.60
2029.25    0.098   346.60
2029.35    0.085   346.60
2029.45    0.072   346.60
2029.55    0.059   346.60
2029.65    0.045   346.60
2029.75    0.031   346.60
2029.85    0.017   346.60
2029.95    0.004   346.60
2030.05    0.010   166.60
2030.15    0.024   166.60
2030.25    0.038   166.60
2030.35    0.052   166.60
2030.45    0.065   166.60
2030.55    0.078   166.60
2030.65    0.091   166.60
2030.75    0.104   166.60
2030.85    0.117   166.60
2030.95    0.129   166.60
2031.05    0.140   166.60
2031.15    0.151   166.60
2031.25    0.162   166.60
2031.35    0.173   166.60
2031.45    0.183   166.60
2031.55    0.193   166.60
2031.65    0.202   166.60
2031.75    0.211   166.60
2031.85    0.219   166.60
2031.95    0.227   166.60
2032.05    0.235   166.60
2032.15    0.242   166.60
2032.25    0.249   166.60
2032.35    0.256   166.60
2032.45    0.262   166.60
2032.55    0.268   166.60
2032.65    0.274   166.60
2032.75    0.279   166.60
2032.85    0.284   166.60
2032.95    0.289   166.60
2033.05    0.293   166.60
2033.15    0.297   166.60
2033.25    0.301   166.60
2033.35    0.305   166.60
2033.45    0.308   166.60
2033.55    0.311   166.60
2033.65    0.314   166.60
2033.75    0.317   166.60
2033.85    0.319   166.60
2033.95    0.321   166.60
2034.05    0.323   166.60
2034.15    0.325   166.60
2034.25    0.326   166.60
2034.35    0.328   166.60
2034.45    0.329   166.60
2034.55    0.330   166.60
2034.65    0.331   166.60
2034.75    0.331   166.60
2034.85    0.332   166.60
2034.95    0.332   166.60
2035.05    0.332   166.60
2035.15    0.332   166.60
2035.25    0.332   166.60
2035.35    0.332   166.60
2035.45    0.331   166.60
2035.55    0.330   166.60
2035.65    0.330   166.60
2035.75    0.329   166.60
2035.85    0.328   166.60
2035.95    0.327   166.60
2036.05    0.325   166.60
2036.15    0.324   166.60
2036.25    0.323   166.60
2036.35    0.321   166.60
2036.45    0.319   166.60
2036.55    0.317   166.60
2036.65    0.316   166.60
2036.75    0.314   166.60
2036.85    0.311   166.60
2036.95    0.309   166.60
2037.05    0.307   166.60
2037.15    0.305   166.60
2037.25    0.302   166.60
2037.35    0.299   166.60
2037.45    0.297   166.60
2037.55    0.294   166.60
2037.65    0.291   166.60
2037.75    0.288   166.60
2037.85    0.285   166.60
2037.95    0.282   166.60

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 18:45:41