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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:23:37

Orbital Elements for RST1785

WDS:	RST1785	WDS ID/Discoverer
P:	92.340	Orbital period (years)
a:	0.222	Semi-major axis (arcseconds)
i:	45.3	Inclination (degrees)
Ω:	60.7	Longitude of ascending node (degrees)
T:	1987.770	Epoch of periastron passage (year)
e:	0.22	Eccentricity
ω:	65.2	Longitude of periastron (degrees)
Start-Year:	1979.0	Year
End-Year:	2071.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST1785

Position:	142417.03-383745.4	Epoch-2000 right ascension and declination
WDS-ID:	14243-3838	WDS designation
Discoverer Code:	RST1785	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	126061	HD catalog number
Hipparcos number:	70410	Hipparcos catalog number
V1:	10.35	Magnitude of the primary
V2:	10.62	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for RST1785

WDS 6th Orbit including measures of RST1785

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

Ephemeris of RST1785

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.233    273.1
-------------------------
1979.0     0.184     70.0
1980.0     0.179     74.0
1981.0     0.173     78.2
1982.0     0.167     82.8
1983.0     0.161     87.6
1984.0     0.155     92.9
1985.0     0.148     98.7
1986.0     0.142    104.9
1987.0     0.136    111.8
1988.0     0.131    119.1
1989.0     0.127    127.1
1990.0     0.125    135.4
1991.0     0.124    144.0
1992.0     0.124    152.6
1993.0     0.126    161.0
1994.0     0.130    169.0
1995.0     0.135    176.6
1996.0     0.141    183.5
1997.0     0.148    189.9
1998.0     0.155    195.7
1999.0     0.162    200.9
2000.0     0.170    205.7
2001.0     0.178    210.1
2002.0     0.185    214.1
2003.0     0.192    217.8
2004.0     0.199    221.2
2005.0     0.205    224.5
2006.0     0.211    227.5
2007.0     0.216    230.4
2008.0     0.221    233.2
2009.0     0.226    235.8
2010.0     0.230    238.3
2011.0     0.233    240.8
2012.0     0.236    243.2
2013.0     0.238    245.6
2014.0     0.240    247.9
2015.0     0.241    250.1
2016.0     0.242    252.4
2017.0     0.242    254.6
2018.0     0.243    256.9
2019.0     0.242    259.1
2020.0     0.241    261.4
2021.0     0.240    263.7
2022.0     0.239    266.0
2023.0     0.237    268.3
2024.0     0.235    270.6
2025.0     0.233    273.1
2026.0     0.230    275.5
2027.0     0.228    278.0
2028.0     0.225    280.6
2029.0     0.222    283.2
2030.0     0.219    285.9
2031.0     0.216    288.7
2032.0     0.213    291.6
2033.0     0.210    294.5
2034.0     0.207    297.6
2035.0     0.204    300.7
2036.0     0.201    303.9
2037.0     0.198    307.3
2038.0     0.196    310.7
2039.0     0.193    314.1
2040.0     0.191    317.7
2041.0     0.189    321.4
2042.0     0.188    325.1
2043.0     0.186    328.9
2044.0     0.185    332.7
2045.0     0.185    336.6
2046.0     0.184    340.4
2047.0     0.184    344.3
2048.0     0.184    348.2
2049.0     0.185    352.1
2050.0     0.186    355.9
2051.0     0.187    359.7
2052.0     0.188      3.5
2053.0     0.189      7.2
2054.0     0.191     10.8
2055.0     0.193     14.4
2056.0     0.194     17.9
2057.0     0.196     21.4
2058.0     0.197     24.8
2059.0     0.199     28.2
2060.0     0.200     31.5
2061.0     0.201     34.8
2062.0     0.201     38.0
2063.0     0.202     41.3
2064.0     0.202     44.5
2065.0     0.201     47.8
2066.0     0.200     51.1
2067.0     0.198     54.4
2068.0     0.196     57.8
2069.0     0.193     61.3
2070.0     0.189     64.9

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.