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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:18:11
WDS:
A1789
WDS ID/Discoverer
P:
143.440
Orbital period (years)
a:
0.191
Semi-major axis (arcseconds)
i:
137.8
Inclination (degrees)
Ω:
67.9
Longitude of ascending node (degrees)
T:
1962.712
Epoch of periastron passage (year)
e:
0.42
Eccentricity
ω:
105.4
Longitude of periastron (degrees)
Start-Year:
1954.0
Year
End-Year:
2096.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
133029.62+072910.1
Epoch-2000 right ascension and declination
WDS-ID:
13305+0729
WDS designation
Discoverer Code:
A1789
Discover designation and components
ADS number:
8926
Aitken Double Star catalog
HD number:
117478
HD catalog number
Hipparcos number:
65897
Hipparcos catalog number
V1:
9.14
Magnitude of the primary
V2:
9.39
Magnitude of the secondary
Equinox:
Equinox
Date:
2018
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.199 151.6
-------------------------
1954.0 0.107 25.0
1955.0 0.102 19.3
1956.0 0.097 13.1
1957.0 0.092 6.1
1958.0 0.088 358.5
1959.0 0.085 350.3
1960.0 0.083 341.7
1961.0 0.083 332.7
1962.0 0.083 323.7
1963.0 0.085 315.0
1964.0 0.088 306.8
1965.0 0.091 299.1
1966.0 0.096 292.1
1967.0 0.100 285.6
1968.0 0.105 279.8
1969.0 0.110 274.5
1970.0 0.116 269.7
1971.0 0.120 265.3
1972.0 0.125 261.2
1973.0 0.130 257.4
1974.0 0.134 253.9
1975.0 0.138 250.6
1976.0 0.142 247.4
1977.0 0.146 244.5
1978.0 0.149 241.6
1979.0 0.152 238.9
1980.0 0.155 236.3
1981.0 0.157 233.8
1982.0 0.160 231.3
1983.0 0.162 229.0
1984.0 0.164 226.6
1985.0 0.166 224.4
1986.0 0.168 222.2
1987.0 0.169 220.0
1988.0 0.171 217.9
1989.0 0.172 215.8
1990.0 0.173 213.7
1991.0 0.174 211.7
1992.0 0.176 209.7
1993.0 0.177 207.7
1994.0 0.177 205.7
1995.0 0.178 203.8
1996.0 0.179 201.9
1997.0 0.180 199.9
1998.0 0.181 198.1
1999.0 0.181 196.2
2000.0 0.182 194.3
2001.0 0.183 192.5
2002.0 0.183 190.6
2003.0 0.184 188.8
2004.0 0.185 187.0
2005.0 0.185 185.2
2006.0 0.186 183.4
2007.0 0.186 181.6
2008.0 0.187 179.8
2009.0 0.188 178.1
2010.0 0.188 176.3
2011.0 0.189 174.6
2012.0 0.189 172.9
2013.0 0.190 171.2
2014.0 0.191 169.5
2015.0 0.191 167.8
2016.0 0.192 166.1
2017.0 0.193 164.5
2018.0 0.194 162.8
2019.0 0.194 161.2
2020.0 0.195 159.6
2021.0 0.196 157.9
2022.0 0.197 156.3
2023.0 0.197 154.8
2024.0 0.198 153.2
2025.0 0.199 151.6
2026.0 0.200 150.1
2027.0 0.201 148.5
2028.0 0.201 147.0
2029.0 0.202 145.5
2030.0 0.203 144.0
2031.0 0.204 142.5
2032.0 0.205 141.0
2033.0 0.205 139.6
2034.0 0.206 138.1
2035.0 0.207 136.7
2036.0 0.208 135.3
2037.0 0.209 133.8
2038.0 0.209 132.4
2039.0 0.210 131.0
2040.0 0.211 129.6
2041.0 0.212 128.3
2042.0 0.212 126.9
2043.0 0.213 125.5
2044.0 0.214 124.2
2045.0 0.214 122.8
2046.0 0.215 121.5
2047.0 0.215 120.2
2048.0 0.216 118.9
2049.0 0.216 117.5
2050.0 0.217 116.2
2051.0 0.217 114.9
2052.0 0.218 113.6
2053.0 0.218 112.3
2054.0 0.218 111.0
2055.0 0.218 109.7
2056.0 0.218 108.4
2057.0 0.218 107.1
2058.0 0.218 105.9
2059.0 0.218 104.6
2060.0 0.218 103.3
2061.0 0.218 102.0
2062.0 0.217 100.7
2063.0 0.217 99.4
2064.0 0.216 98.0
2065.0 0.215 96.7
2066.0 0.215 95.4
2067.0 0.214 94.0
2068.0 0.213 92.7
2069.0 0.212 91.3
2070.0 0.210 89.9
2071.0 0.209 88.5
2072.0 0.207 87.1
2073.0 0.206 85.7
2074.0 0.204 84.2
2075.0 0.202 82.7
2076.0 0.200 81.2
2077.0 0.198 79.6
2078.0 0.195 78.0
2079.0 0.192 76.4
2080.0 0.189 74.7
2081.0 0.186 73.0
2082.0 0.183 71.2
2083.0 0.180 69.3
2084.0 0.176 67.4
2085.0 0.172 65.3
2086.0 0.168 63.2
2087.0 0.164 61.0
2088.0 0.159 58.6
2089.0 0.154 56.1
2090.0 0.149 53.4
2091.0 0.144 50.5
2092.0 0.139 47.5
2093.0 0.133 44.1
2094.0 0.127 40.5
2095.0 0.121 36.5
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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