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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:12:41

Orbital Elements for RST3255

WDS:	RST3255	WDS ID/Discoverer
P:	45.700	Orbital period (years)
a:	0.217	Semi-major axis (arcseconds)
i:	55.4	Inclination (degrees)
Ω:	98.0	Longitude of ascending node (degrees)
T:	1951.900	Epoch of periastron passage (year)
e:	0.16	Eccentricity
ω:	91.9	Longitude of periastron (degrees)
Start-Year:	2003.0	Year
End-Year:	2047.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST3255

Position:	202028.13-274928.4	Epoch-2000 right ascension and declination
WDS-ID:	20205-2749	WDS designation
Discoverer Code:	RST3255	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	193280	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.6	Magnitude of the primary
V2:	10.6	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1984	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for RST3255

WDS 6th Orbit including measures of RST3255

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

Ephemeris of RST3255

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.170     51.8
-------------------------
2003.0     0.176    259.0
2004.0     0.189    265.3
2005.0     0.200    270.7
2006.0     0.208    275.7
2007.0     0.212    280.4
2008.0     0.214    285.0
2009.0     0.214    289.5
2010.0     0.210    294.1
2011.0     0.205    299.0
2012.0     0.198    304.1
2013.0     0.190    309.6
2014.0     0.181    315.6
2015.0     0.172    322.3
2016.0     0.163    329.7
2017.0     0.155    337.9
2018.0     0.149    347.0
2019.0     0.145    356.7
2020.0     0.143      6.8
2021.0     0.144     16.9
2022.0     0.148     26.7
2023.0     0.154     35.8
2024.0     0.162     44.2
2025.0     0.170     51.8
2026.0     0.180     58.6
2027.0     0.189     64.7
2028.0     0.197     70.3
2029.0     0.205     75.4
2030.0     0.211     80.2
2031.0     0.215     84.8
2032.0     0.217     89.2
2033.0     0.216     93.7
2034.0     0.212     98.2
2035.0     0.206    102.9
2036.0     0.197    108.1
2037.0     0.184    113.8
2038.0     0.170    120.4
2039.0     0.154    128.4
2040.0     0.137    138.3
2041.0     0.121    150.9
2042.0     0.109    166.9
2043.0     0.104    185.5
2044.0     0.107    204.6
2045.0     0.117    221.4
2046.0     0.132    235.0

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.