Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:28:41

Orbital Elements for RST3906

WDS:	RST3906	WDS ID/Discoverer
P:	52.250	Orbital period (years)
a:	0.178	Semi-major axis (arcseconds)
i:	89.8	Inclination (degrees)
Ω:	154.9	Longitude of ascending node (degrees)
T:	2020.540	Epoch of periastron passage (year)
e:	0.672	Eccentricity
ω:	18.4	Longitude of periastron (degrees)
Start-Year:	1999.0	Year
End-Year:	2051.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST3906

Position:	150414.24-152951.4	Epoch-2000 right ascension and declination
WDS-ID:	15042-1530	WDS designation
Discoverer Code:	RST3906	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	133316	HD catalog number
Hipparcos number:	73724	Hipparcos catalog number
V1:	8.67	Magnitude of the primary
V2:	9.17	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for RST3906

WDS 6th Orbit including measures of RST3906

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)

Ephemeris of RST3906

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.082    334.7
-------------------------
1999.0     0.260    335.0
2000.0     0.252    335.0
2001.0     0.244    335.0
2002.0     0.235    335.0
2003.0     0.225    335.0
2004.0     0.214    335.1
2005.0     0.202    335.1
2006.0     0.190    335.1
2007.0     0.176    335.1
2008.0     0.161    335.1
2009.0     0.146    335.1
2010.0     0.129    335.2
2011.0     0.112    335.2
2012.0     0.093    335.3
2013.0     0.073    335.3
2014.0     0.052    335.5
2015.0     0.031    335.8
2016.0     0.008    338.0
2017.0     0.014    153.4
2018.0     0.036    154.4
2019.0     0.054    154.7
2020.0     0.060    154.9
2021.0     0.046    155.1
2022.0     0.015    155.8
2023.0     0.019    334.0
2024.0     0.052    334.5
2025.0     0.082    334.7
2026.0     0.109    334.7
2027.0     0.133    334.8
2028.0     0.155    334.8
2029.0     0.174    334.8
2030.0     0.191    334.8
2031.0     0.207    334.8
2032.0     0.220    334.9
2033.0     0.233    334.9
2034.0     0.243    334.9
2035.0     0.253    334.9
2036.0     0.261    334.9
2037.0     0.268    334.9
2038.0     0.274    334.9
2039.0     0.279    334.9
2040.0     0.282    334.9
2041.0     0.285    334.9
2042.0     0.287    334.9
2043.0     0.287    334.9
2044.0     0.287    334.9
2045.0     0.286    335.0
2046.0     0.284    335.0
2047.0     0.281    335.0
2048.0     0.278    335.0
2049.0     0.273    335.0
2050.0     0.268    335.0

Disclaimer

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.