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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:27:07
WDS:
A1260AB
WDS ID/Discoverer
P:
137.170
Orbital period (years)
a:
0.288
Semi-major axis (arcseconds)
i:
78.1
Inclination (degrees)
Ω:
242.2
Longitude of ascending node (degrees)
T:
2029.430
Epoch of periastron passage (year)
e:
0.489
Eccentricity
ω:
274.29
Longitude of periastron (degrees)
Start-Year:
1957.0
Year
End-Year:
2093.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
011308.90+294159.1
Epoch-2000 right ascension and declination
WDS-ID:
01131+2942
WDS designation
Discoverer Code:
A1260AB
Discover designation and components
ADS number:
993
Aitken Double Star catalog
HD number:
7255
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
9.19
Magnitude of the primary
V2:
9.4
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2009
Date of last observation
Orbit grade:
3
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 0.090 80.0
-------------------------
1957.0 0.088 333.7
1958.0 0.089 338.7
1959.0 0.090 343.6
1960.0 0.092 348.4
1961.0 0.094 352.9
1962.0 0.097 357.2
1963.0 0.100 1.2
1964.0 0.104 4.9
1965.0 0.108 8.4
1966.0 0.112 11.6
1967.0 0.117 14.6
1968.0 0.122 17.4
1969.0 0.127 19.9
1970.0 0.132 22.2
1971.0 0.137 24.4
1972.0 0.143 26.4
1973.0 0.148 28.3
1974.0 0.153 30.0
1975.0 0.159 31.6
1976.0 0.164 33.1
1977.0 0.170 34.5
1978.0 0.175 35.8
1979.0 0.181 37.0
1980.0 0.186 38.2
1981.0 0.191 39.3
1982.0 0.196 40.4
1983.0 0.202 41.3
1984.0 0.207 42.3
1985.0 0.211 43.2
1986.0 0.216 44.0
1987.0 0.221 44.9
1988.0 0.225 45.6
1989.0 0.230 46.4
1990.0 0.234 47.1
1991.0 0.238 47.8
1992.0 0.241 48.5
1993.0 0.245 49.2
1994.0 0.248 49.8
1995.0 0.251 50.5
1996.0 0.254 51.1
1997.0 0.256 51.7
1998.0 0.258 52.3
1999.0 0.260 52.8
2000.0 0.262 53.4
2001.0 0.263 54.0
2002.0 0.263 54.6
2003.0 0.264 55.1
2004.0 0.264 55.7
2005.0 0.263 56.3
2006.0 0.262 56.8
2007.0 0.260 57.4
2008.0 0.258 58.0
2009.0 0.255 58.6
2010.0 0.252 59.2
2011.0 0.248 59.8
2012.0 0.243 60.5
2013.0 0.237 61.1
2014.0 0.231 61.8
2015.0 0.223 62.6
2016.0 0.215 63.4
2017.0 0.206 64.3
2018.0 0.195 65.3
2019.0 0.184 66.4
2020.0 0.171 67.6
2021.0 0.157 69.1
2022.0 0.142 70.8
2023.0 0.125 73.0
2024.0 0.108 75.9
2025.0 0.090 80.0
2026.0 0.071 86.1
2027.0 0.052 96.7
2028.0 0.037 117.3
2029.0 0.030 154.7
2030.0 0.038 190.6
2031.0 0.054 209.8
2032.0 0.073 219.7
2033.0 0.091 225.6
2034.0 0.109 229.5
2035.0 0.126 232.3
2036.0 0.142 234.5
2037.0 0.157 236.2
2038.0 0.170 237.7
2039.0 0.182 239.0
2040.0 0.192 240.1
2041.0 0.202 241.1
2042.0 0.210 242.0
2043.0 0.217 242.9
2044.0 0.223 243.7
2045.0 0.228 244.5
2046.0 0.232 245.2
2047.0 0.236 245.9
2048.0 0.238 246.6
2049.0 0.240 247.3
2050.0 0.242 248.0
2051.0 0.242 248.6
2052.0 0.243 249.3
2053.0 0.242 250.0
2054.0 0.241 250.6
2055.0 0.240 251.3
2056.0 0.238 252.0
2057.0 0.236 252.7
2058.0 0.234 253.4
2059.0 0.231 254.1
2060.0 0.228 254.9
2061.0 0.225 255.6
2062.0 0.221 256.4
2063.0 0.218 257.2
2064.0 0.213 258.1
2065.0 0.209 258.9
2066.0 0.205 259.8
2067.0 0.200 260.8
2068.0 0.195 261.8
2069.0 0.191 262.9
2070.0 0.186 264.0
2071.0 0.180 265.1
2072.0 0.175 266.4
2073.0 0.170 267.7
2074.0 0.165 269.1
2075.0 0.159 270.6
2076.0 0.154 272.2
2077.0 0.149 273.9
2078.0 0.143 275.7
2079.0 0.138 277.7
2080.0 0.133 279.8
2081.0 0.128 282.1
2082.0 0.123 284.6
2083.0 0.118 287.4
2084.0 0.113 290.3
2085.0 0.109 293.5
2086.0 0.105 296.9
2087.0 0.101 300.6
2088.0 0.098 304.6
2089.0 0.095 308.8
2090.0 0.092 313.3
2091.0 0.090 318.0
2092.0 0.089 322.9
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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