Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:34:17
WDS:
STF2912AB
WDS ID/Discoverer
P:
123.530
Orbital period (years)
a:
0.714
Semi-major axis (arcseconds)
i:
89.94
Inclination (degrees)
Ω:
117.1
Longitude of ascending node (degrees)
T:
2035.380
Epoch of periastron passage (year)
e:
0.515
Eccentricity
ω:
214.6
Longitude of periastron (degrees)
Start-Year:
1964.0
Year
End-Year:
2086.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
222957.93+042554.1
Epoch-2000 right ascension and declination
WDS-ID:
22300+0426
WDS designation
Discoverer Code:
STF2912AB
Discover designation and components
ADS number:
15988
Aitken Double Star catalog
HD number:
213235
HD catalog number
Hipparcos number:
111062
Hipparcos catalog number
V1:
5.75
Magnitude of the primary
V2:
7.26
Magnitude of the secondary
Equinox:
Equinox
Date:
Date of last observation
Orbit grade:
2
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.323 297.0
-------------------------
1964.0 0.971 117.1
1965.0 0.965 117.1
1966.0 0.959 117.1
1967.0 0.953 117.1
1968.0 0.945 117.1
1969.0 0.937 117.1
1970.0 0.928 117.1
1971.0 0.919 117.1
1972.0 0.908 117.1
1973.0 0.897 117.1
1974.0 0.886 117.1
1975.0 0.874 117.1
1976.0 0.861 117.1
1977.0 0.847 117.1
1978.0 0.833 117.1
1979.0 0.818 117.2
1980.0 0.803 117.2
1981.0 0.787 117.2
1982.0 0.770 117.2
1983.0 0.753 117.2
1984.0 0.735 117.2
1985.0 0.717 117.2
1986.0 0.698 117.2
1987.0 0.678 117.2
1988.0 0.658 117.2
1989.0 0.637 117.2
1990.0 0.616 117.2
1991.0 0.594 117.2
1992.0 0.572 117.2
1993.0 0.549 117.2
1994.0 0.526 117.2
1995.0 0.502 117.2
1996.0 0.478 117.2
1997.0 0.453 117.2
1998.0 0.428 117.2
1999.0 0.402 117.2
2000.0 0.376 117.2
2001.0 0.349 117.2
2002.0 0.322 117.3
2003.0 0.295 117.3
2004.0 0.267 117.3
2005.0 0.239 117.3
2006.0 0.210 117.3
2007.0 0.181 117.4
2008.0 0.152 117.4
2009.0 0.123 117.5
2010.0 0.093 117.6
2011.0 0.064 117.8
2012.0 0.034 118.5
2013.0 0.004 128.9
2014.0 0.026 295.4
2015.0 0.056 296.3
2016.0 0.086 296.6
2017.0 0.115 296.8
2018.0 0.145 296.8
2019.0 0.173 296.9
2020.0 0.201 296.9
2021.0 0.228 297.0
2022.0 0.254 297.0
2023.0 0.279 297.0
2024.0 0.302 297.0
2025.0 0.323 297.0
2026.0 0.342 297.0
2027.0 0.357 297.1
2028.0 0.369 297.1
2029.0 0.377 297.1
2030.0 0.380 297.1
2031.0 0.377 297.1
2032.0 0.368 297.1
2033.0 0.352 297.1
2034.0 0.329 297.1
2035.0 0.298 297.1
2036.0 0.261 297.2
2037.0 0.218 297.2
2038.0 0.170 297.2
2039.0 0.119 297.3
2040.0 0.066 297.4
2041.0 0.011 299.2
2042.0 0.043 116.5
2043.0 0.098 116.8
2044.0 0.151 116.9
2045.0 0.202 117.0
2046.0 0.252 117.0
2047.0 0.300 117.0
2048.0 0.347 117.0
2049.0 0.391 117.0
2050.0 0.433 117.0
2051.0 0.473 117.1
2052.0 0.511 117.1
2053.0 0.548 117.1
2054.0 0.582 117.1
2055.0 0.615 117.1
2056.0 0.646 117.1
2057.0 0.675 117.1
2058.0 0.703 117.1
2059.0 0.729 117.1
2060.0 0.754 117.1
2061.0 0.777 117.1
2062.0 0.798 117.1
2063.0 0.819 117.1
2064.0 0.837 117.1
2065.0 0.855 117.1
2066.0 0.871 117.1
2067.0 0.886 117.1
2068.0 0.900 117.1
2069.0 0.913 117.1
2070.0 0.925 117.1
2071.0 0.935 117.1
2072.0 0.945 117.1
2073.0 0.953 117.1
2074.0 0.960 117.1
2075.0 0.967 117.1
2076.0 0.972 117.1
2077.0 0.977 117.1
2078.0 0.980 117.1
2079.0 0.983 117.1
2080.0 0.985 117.1
2081.0 0.985 117.1
2082.0 0.985 117.1
2083.0 0.985 117.1
2084.0 0.983 117.1
2085.0 0.980 117.1
This result is provided without warranty. For all terms, see the Full Disclaimer .
Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .
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 .
www.stella-vega.de