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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:57:14

Orbital Elements for RST4454AB

WDS:	RST4454AB	WDS ID/Discoverer
P:	164.550	Orbital period (years)
a:	0.273	Semi-major axis (arcseconds)
i:	86.9	Inclination (degrees)
Ω:	221.3	Longitude of ascending node (degrees)
T:	1957.190	Epoch of periastron passage (year)
e:	0.306	Eccentricity
ω:	243.1	Longitude of periastron (degrees)
Start-Year:	1943.0	Year
End-Year:	2107.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST4454AB

Position:	101817.75-032626.0	Epoch-2000 right ascension and declination
WDS-ID:	10183-0326	WDS designation
Discoverer Code:	RST4454AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	89334	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.9	Magnitude of the primary
V2:	9.9	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2010	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for RST4454AB

WDS 6th Orbit including measures of RST4454AB

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

Ephemeris of RST4454AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.246    224.4
-------------------------
1943.0     0.211     41.6
1944.0     0.206     41.8
1945.0     0.201     42.0
1946.0     0.195     42.3
1947.0     0.189     42.5
1948.0     0.181     42.7
1949.0     0.173     43.0
1950.0     0.165     43.3
1951.0     0.156     43.6
1952.0     0.146     44.0
1953.0     0.135     44.4
1954.0     0.124     44.9
1955.0     0.113     45.5
1956.0     0.101     46.2
1957.0     0.089     47.2
1958.0     0.076     48.4
1959.0     0.063     50.2
1960.0     0.050     52.9
1961.0     0.036     57.5
1962.0     0.024     67.4
1963.0     0.013     96.7
1964.0     0.012    163.8
1965.0     0.023    194.1
1966.0     0.036    204.2
1967.0     0.049    208.9
1968.0     0.063    211.7
1969.0     0.076    213.4
1970.0     0.089    214.7
1971.0     0.101    215.6
1972.0     0.114    216.4
1973.0     0.126    216.9
1974.0     0.137    217.4
1975.0     0.149    217.8
1976.0     0.160    218.2
1977.0     0.170    218.5
1978.0     0.180    218.8
1979.0     0.190    219.0
1980.0     0.199    219.2
1981.0     0.208    219.4
1982.0     0.216    219.6
1983.0     0.224    219.8
1984.0     0.232    220.0
1985.0     0.239    220.1
1986.0     0.246    220.3
1987.0     0.252    220.4
1988.0     0.258    220.5
1989.0     0.263    220.6
1990.0     0.268    220.8
1991.0     0.273    220.9
1992.0     0.277    221.0
1993.0     0.281    221.1
1994.0     0.284    221.2
1995.0     0.287    221.3
1996.0     0.290    221.4
1997.0     0.293    221.5
1998.0     0.295    221.6
1999.0     0.297    221.7
2000.0     0.298    221.8
2001.0     0.299    221.9
2002.0     0.300    222.0
2003.0     0.300    222.1
2004.0     0.300    222.2
2005.0     0.300    222.3
2006.0     0.300    222.4
2007.0     0.299    222.5
2008.0     0.298    222.5
2009.0     0.297    222.6
2010.0     0.296    222.7
2011.0     0.294    222.8
2012.0     0.292    222.9
2013.0     0.290    223.0
2014.0     0.287    223.1
2015.0     0.285    223.2
2016.0     0.282    223.3
2017.0     0.279    223.4
2018.0     0.275    223.6
2019.0     0.272    223.7
2020.0     0.268    223.8
2021.0     0.264    223.9
2022.0     0.260    224.0
2023.0     0.256    224.1
2024.0     0.251    224.3
2025.0     0.246    224.4
2026.0     0.242    224.6
2027.0     0.237    224.7
2028.0     0.231    224.9
2029.0     0.226    225.0
2030.0     0.221    225.2
2031.0     0.215    225.4
2032.0     0.209    225.5
2033.0     0.203    225.7
2034.0     0.197    226.0
2035.0     0.191    226.2
2036.0     0.185    226.4
2037.0     0.178    226.7
2038.0     0.172    226.9
2039.0     0.165    227.2
2040.0     0.159    227.6
2041.0     0.152    227.9
2042.0     0.145    228.3
2043.0     0.138    228.7
2044.0     0.131    229.2
2045.0     0.124    229.7
2046.0     0.116    230.3
2047.0     0.109    230.9
2048.0     0.102    231.7
2049.0     0.094    232.6
2050.0     0.087    233.6
2051.0     0.079    234.8
2052.0     0.072    236.3
2053.0     0.065    238.1
2054.0     0.057    240.4
2055.0     0.050    243.3
2056.0     0.043    247.3
2057.0     0.036    252.8
2058.0     0.029    261.0
2059.0     0.024    273.3
2060.0     0.020    291.9
2061.0     0.018    315.8
2062.0     0.021    338.5
2063.0     0.025    355.0
2064.0     0.031      5.8
2065.0     0.038     12.9
2066.0     0.045     17.9
2067.0     0.052     21.5
2068.0     0.059     24.2
2069.0     0.067     26.3
2070.0     0.074     28.0
2071.0     0.082     29.4
2072.0     0.089     30.6
2073.0     0.096     31.5
2074.0     0.104     32.4
2075.0     0.111     33.1
2076.0     0.118     33.8
2077.0     0.125     34.3
2078.0     0.132     34.8
2079.0     0.139     35.3
2080.0     0.145     35.7
2081.0     0.152     36.1
2082.0     0.158     36.4
2083.0     0.164     36.8
2084.0     0.170     37.1
2085.0     0.176     37.3
2086.0     0.181     37.6
2087.0     0.186     37.9
2088.0     0.191     38.1
2089.0     0.196     38.3
2090.0     0.200     38.5
2091.0     0.205     38.7
2092.0     0.208     38.9
2093.0     0.212     39.1
2094.0     0.215     39.3
2095.0     0.218     39.5
2096.0     0.220     39.7
2097.0     0.222     39.8
2098.0     0.223     40.0
2099.0     0.224     40.2
2100.0     0.225     40.3
2101.0     0.225     40.5
2102.0     0.224     40.7
2103.0     0.223     40.8
2104.0     0.221     41.0
2105.0     0.219     41.2
2106.0     0.216     41.4

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.