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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:28:35
WDS:
A939
WDS ID/Discoverer
P:
145.640
Orbital period (years)
a:
0.185
Semi-major axis (arcseconds)
i:
19.4
Inclination (degrees)
Ω:
143.5
Longitude of ascending node (degrees)
T:
1962.500
Epoch of periastron passage (year)
e:
0.196
Eccentricity
ω:
273.6
Longitude of periastron (degrees)
Start-Year:
1953.0
Year
End-Year:
2097.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
012506.75+453631.0
Epoch-2000 right ascension and declination
WDS-ID:
01251+4537
WDS designation
Discoverer Code:
A939
Discover designation and components
ADS number:
1126
Aitken Double Star catalog
HD number:
8528
HD catalog number
Hipparcos number:
6633
Hipparcos catalog number
V1:
8.94
Magnitude of the primary
V2:
9.09
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2010
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 0.207 218.7
-------------------------
1953.0 0.147 20.7
1954.0 0.146 24.3
1955.0 0.144 28.1
1956.0 0.143 31.8
1957.0 0.143 35.7
1958.0 0.142 39.5
1959.0 0.141 43.5
1960.0 0.141 47.4
1961.0 0.140 51.4
1962.0 0.140 55.3
1963.0 0.140 59.3
1964.0 0.141 63.3
1965.0 0.141 67.2
1966.0 0.142 71.1
1967.0 0.142 75.0
1968.0 0.143 78.9
1969.0 0.144 82.6
1970.0 0.145 86.4
1971.0 0.147 90.0
1972.0 0.148 93.7
1973.0 0.149 97.2
1974.0 0.151 100.7
1975.0 0.153 104.1
1976.0 0.154 107.4
1977.0 0.156 110.6
1978.0 0.158 113.8
1979.0 0.159 116.9
1980.0 0.161 120.0
1981.0 0.163 123.0
1982.0 0.165 125.9
1983.0 0.166 128.7
1984.0 0.168 131.5
1985.0 0.170 134.3
1986.0 0.172 136.9
1987.0 0.173 139.6
1988.0 0.175 142.2
1989.0 0.176 144.7
1990.0 0.178 147.2
1991.0 0.180 149.6
1992.0 0.181 152.0
1993.0 0.182 154.4
1994.0 0.184 156.7
1995.0 0.185 159.0
1996.0 0.186 161.3
1997.0 0.188 163.5
1998.0 0.189 165.8
1999.0 0.190 167.9
2000.0 0.191 170.1
2001.0 0.192 172.2
2002.0 0.193 174.3
2003.0 0.194 176.4
2004.0 0.195 178.5
2005.0 0.196 180.5
2006.0 0.197 182.5
2007.0 0.198 184.5
2008.0 0.199 186.5
2009.0 0.199 188.5
2010.0 0.200 190.5
2011.0 0.201 192.4
2012.0 0.201 194.4
2013.0 0.202 196.3
2014.0 0.203 198.2
2015.0 0.203 200.1
2016.0 0.204 202.0
2017.0 0.204 203.9
2018.0 0.205 205.8
2019.0 0.205 207.6
2020.0 0.205 209.5
2021.0 0.206 211.3
2022.0 0.206 213.2
2023.0 0.206 215.0
2024.0 0.207 216.8
2025.0 0.207 218.7
2026.0 0.207 220.5
2027.0 0.208 222.3
2028.0 0.208 224.1
2029.0 0.208 225.9
2030.0 0.208 227.7
2031.0 0.208 229.5
2032.0 0.208 231.3
2033.0 0.209 233.1
2034.0 0.209 234.9
2035.0 0.209 236.7
2036.0 0.209 238.5
2037.0 0.209 240.3
2038.0 0.209 242.1
2039.0 0.209 243.9
2040.0 0.209 245.7
2041.0 0.209 247.5
2042.0 0.209 249.3
2043.0 0.208 251.1
2044.0 0.208 252.9
2045.0 0.208 254.7
2046.0 0.208 256.5
2047.0 0.208 258.3
2048.0 0.207 260.2
2049.0 0.207 262.0
2050.0 0.207 263.8
2051.0 0.207 265.6
2052.0 0.206 267.5
2053.0 0.206 269.3
2054.0 0.205 271.2
2055.0 0.205 273.0
2056.0 0.204 274.9
2057.0 0.204 276.8
2058.0 0.203 278.7
2059.0 0.203 280.6
2060.0 0.202 282.5
2061.0 0.201 284.4
2062.0 0.200 286.3
2063.0 0.200 288.3
2064.0 0.199 290.3
2065.0 0.198 292.3
2066.0 0.197 294.3
2067.0 0.196 296.3
2068.0 0.195 298.3
2069.0 0.194 300.4
2070.0 0.193 302.5
2071.0 0.192 304.6
2072.0 0.191 306.7
2073.0 0.189 308.9
2074.0 0.188 311.1
2075.0 0.187 313.3
2076.0 0.185 315.6
2077.0 0.184 317.9
2078.0 0.182 320.2
2079.0 0.181 322.6
2080.0 0.179 325.0
2081.0 0.177 327.5
2082.0 0.176 330.0
2083.0 0.174 332.6
2084.0 0.172 335.2
2085.0 0.171 337.8
2086.0 0.169 340.6
2087.0 0.167 343.3
2088.0 0.165 346.2
2089.0 0.163 349.1
2090.0 0.161 352.0
2091.0 0.160 355.1
2092.0 0.158 358.2
2093.0 0.156 1.4
2094.0 0.154 4.6
2095.0 0.153 8.0
2096.0 0.151 11.4
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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