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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:32:11
WDS:
STF1037AB
WDS ID/Discoverer
P:
118.350
Orbital period (years)
a:
0.794
Semi-major axis (arcseconds)
i:
144.7
Inclination (degrees)
Ω:
38.5
Longitude of ascending node (degrees)
T:
1920.340
Epoch of periastron passage (year)
e:
0.933
Eccentricity
ω:
259.5
Longitude of periastron (degrees)
Start-Year:
1966.0
Year
End-Year:
2084.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
071249.08+271330.2
Epoch-2000 right ascension and declination
WDS-ID:
07128+2713
WDS designation
Discoverer Code:
STF1037AB
Discover designation and components
ADS number:
5871
Aitken Double Star catalog
HD number:
55130
HD catalog number
Hipparcos number:
34860
Hipparcos catalog number
V1:
7.24
Magnitude of the primary
V2:
7.27
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2014
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 0.704 297.6
-------------------------
1966.0 1.230 326.1
1967.0 1.235 325.8
1968.0 1.240 325.4
1969.0 1.244 325.0
1970.0 1.248 324.7
1971.0 1.252 324.3
1972.0 1.255 324.0
1973.0 1.257 323.6
1974.0 1.259 323.2
1975.0 1.261 322.9
1976.0 1.262 322.5
1977.0 1.263 322.2
1978.0 1.263 321.8
1979.0 1.263 321.5
1980.0 1.263 321.1
1981.0 1.262 320.8
1982.0 1.260 320.4
1983.0 1.258 320.1
1984.0 1.256 319.7
1985.0 1.253 319.3
1986.0 1.250 319.0
1987.0 1.246 318.6
1988.0 1.242 318.3
1989.0 1.238 317.9
1990.0 1.232 317.5
1991.0 1.227 317.2
1992.0 1.221 316.8
1993.0 1.215 316.4
1994.0 1.208 316.0
1995.0 1.200 315.6
1996.0 1.192 315.2
1997.0 1.184 314.8
1998.0 1.175 314.4
1999.0 1.166 314.0
2000.0 1.156 313.6
2001.0 1.146 313.2
2002.0 1.135 312.7
2003.0 1.123 312.3
2004.0 1.111 311.8
2005.0 1.099 311.4
2006.0 1.086 310.9
2007.0 1.072 310.4
2008.0 1.058 309.9
2009.0 1.043 309.4
2010.0 1.028 308.9
2011.0 1.011 308.4
2012.0 0.995 307.8
2013.0 0.977 307.2
2014.0 0.959 306.6
2015.0 0.940 306.0
2016.0 0.921 305.3
2017.0 0.900 304.7
2018.0 0.879 303.9
2019.0 0.857 303.2
2020.0 0.834 302.4
2021.0 0.810 301.6
2022.0 0.785 300.7
2023.0 0.759 299.8
2024.0 0.732 298.7
2025.0 0.704 297.6
2026.0 0.674 296.5
2027.0 0.643 295.2
2028.0 0.611 293.7
2029.0 0.576 292.1
2030.0 0.540 290.3
2031.0 0.502 288.2
2032.0 0.461 285.8
2033.0 0.418 282.9
2034.0 0.370 279.3
2035.0 0.319 274.5
2036.0 0.261 267.7
2037.0 0.194 256.7
2038.0 0.110 231.1
2039.0 0.066 71.9
2040.0 0.174 25.4
2041.0 0.254 12.8
2042.0 0.320 5.9
2043.0 0.378 1.2
2044.0 0.430 357.8
2045.0 0.477 355.0
2046.0 0.520 352.8
2047.0 0.561 350.8
2048.0 0.599 349.2
2049.0 0.635 347.7
2050.0 0.668 346.4
2051.0 0.700 345.2
2052.0 0.731 344.1
2053.0 0.760 343.0
2054.0 0.787 342.1
2055.0 0.814 341.2
2056.0 0.839 340.4
2057.0 0.863 339.6
2058.0 0.886 338.9
2059.0 0.908 338.2
2060.0 0.929 337.5
2061.0 0.949 336.9
2062.0 0.968 336.3
2063.0 0.987 335.7
2064.0 1.005 335.1
2065.0 1.022 334.6
2066.0 1.038 334.0
2067.0 1.053 333.5
2068.0 1.068 333.0
2069.0 1.083 332.5
2070.0 1.096 332.0
2071.0 1.109 331.6
2072.0 1.122 331.1
2073.0 1.133 330.7
2074.0 1.145 330.3
2075.0 1.155 329.8
2076.0 1.165 329.4
2077.0 1.175 329.0
2078.0 1.184 328.6
2079.0 1.193 328.2
2080.0 1.201 327.8
2081.0 1.208 327.4
2082.0 1.215 327.0
2083.0 1.222 326.6
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 .
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