Content-Type: text/html; charset=UTF-8
Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:29:37
WDS:
STF1932AB
WDS ID/Discoverer
P:
196.628
Orbital period (years)
a:
1.21625
Semi-major axis (arcseconds)
i:
59.764
Inclination (degrees)
Ω:
64.231
Longitude of ascending node (degrees)
T:
1941.548
Epoch of periastron passage (year)
e:
0.64086
Eccentricity
ω:
50.836
Longitude of periastron (degrees)
Start-Year:
1927.0
Year
End-Year:
2123.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
151820.19+265024.7
Epoch-2000 right ascension and declination
WDS-ID:
15183+2650
WDS designation
Discoverer Code:
STF1932AB
Discover designation and components
ADS number:
9578
Aitken Double Star catalog
HD number:
136176
HD catalog number
Hipparcos number:
74893
Hipparcos catalog number
V1:
7.32
Magnitude of the primary
V2:
7.41
Magnitude of the secondary
Equinox:
Equinox
Date:
2015
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 1.586 269.4
-------------------------
1927.0 0.610 34.6
1928.0 0.607 37.5
1929.0 0.603 40.3
1930.0 0.598 43.2
1931.0 0.592 46.2
1932.0 0.583 49.2
1933.0 0.572 52.4
1934.0 0.558 55.6
1935.0 0.540 59.1
1936.0 0.519 62.8
1937.0 0.493 66.9
1938.0 0.462 71.5
1939.0 0.427 76.8
1940.0 0.388 83.1
1941.0 0.347 90.9
1942.0 0.306 100.7
1943.0 0.270 113.4
1944.0 0.246 129.3
1945.0 0.239 147.4
1946.0 0.251 165.1
1947.0 0.281 180.1
1948.0 0.322 191.7
1949.0 0.369 200.5
1950.0 0.420 207.3
1951.0 0.472 212.6
1952.0 0.523 216.8
1953.0 0.574 220.3
1954.0 0.623 223.2
1955.0 0.671 225.7
1956.0 0.717 227.9
1957.0 0.761 229.8
1958.0 0.804 231.5
1959.0 0.845 233.1
1960.0 0.885 234.5
1961.0 0.922 235.7
1962.0 0.959 236.9
1963.0 0.994 238.0
1964.0 1.027 239.0
1965.0 1.059 240.0
1966.0 1.089 240.9
1967.0 1.119 241.8
1968.0 1.147 242.6
1969.0 1.174 243.4
1970.0 1.200 244.1
1971.0 1.225 244.8
1972.0 1.249 245.5
1973.0 1.271 246.2
1974.0 1.293 246.8
1975.0 1.314 247.4
1976.0 1.334 248.0
1977.0 1.353 248.6
1978.0 1.371 249.2
1979.0 1.389 249.7
1980.0 1.405 250.3
1981.0 1.421 250.8
1982.0 1.436 251.3
1983.0 1.451 251.8
1984.0 1.464 252.3
1985.0 1.477 252.8
1986.0 1.490 253.2
1987.0 1.501 253.7
1988.0 1.512 254.2
1989.0 1.523 254.6
1990.0 1.533 255.1
1991.0 1.542 255.5
1992.0 1.551 256.0
1993.0 1.559 256.4
1994.0 1.566 256.8
1995.0 1.573 257.2
1996.0 1.580 257.7
1997.0 1.586 258.1
1998.0 1.592 258.5
1999.0 1.597 258.9
2000.0 1.601 259.3
2001.0 1.606 259.7
2002.0 1.609 260.1
2003.0 1.612 260.5
2004.0 1.615 260.9
2005.0 1.618 261.3
2006.0 1.620 261.7
2007.0 1.621 262.1
2008.0 1.622 262.5
2009.0 1.623 262.9
2010.0 1.623 263.3
2011.0 1.623 263.7
2012.0 1.623 264.1
2013.0 1.622 264.5
2014.0 1.621 264.9
2015.0 1.620 265.3
2016.0 1.618 265.7
2017.0 1.616 266.1
2018.0 1.613 266.5
2019.0 1.610 266.9
2020.0 1.607 267.3
2021.0 1.603 267.7
2022.0 1.600 268.1
2023.0 1.595 268.6
2024.0 1.591 269.0
2025.0 1.586 269.4
2026.0 1.581 269.8
2027.0 1.576 270.2
2028.0 1.570 270.6
2029.0 1.564 271.1
2030.0 1.558 271.5
2031.0 1.551 271.9
2032.0 1.544 272.4
2033.0 1.537 272.8
2034.0 1.530 273.3
2035.0 1.522 273.7
2036.0 1.515 274.2
2037.0 1.506 274.6
2038.0 1.498 275.1
2039.0 1.489 275.5
2040.0 1.481 276.0
2041.0 1.471 276.5
2042.0 1.462 277.0
2043.0 1.453 277.5
2044.0 1.443 278.0
2045.0 1.433 278.5
2046.0 1.422 279.0
2047.0 1.412 279.5
2048.0 1.401 280.1
2049.0 1.390 280.6
2050.0 1.379 281.1
2051.0 1.368 281.7
2052.0 1.357 282.3
2053.0 1.345 282.8
2054.0 1.333 283.4
2055.0 1.321 284.0
2056.0 1.309 284.6
2057.0 1.297 285.2
2058.0 1.284 285.9
2059.0 1.271 286.5
2060.0 1.258 287.2
2061.0 1.245 287.8
2062.0 1.232 288.5
2063.0 1.219 289.2
2064.0 1.206 289.9
2065.0 1.192 290.6
2066.0 1.178 291.4
2067.0 1.164 292.2
2068.0 1.151 292.9
2069.0 1.137 293.7
2070.0 1.122 294.6
2071.0 1.108 295.4
2072.0 1.094 296.3
2073.0 1.080 297.1
2074.0 1.065 298.1
2075.0 1.051 299.0
2076.0 1.036 300.0
2077.0 1.022 300.9
2078.0 1.007 302.0
2079.0 0.993 303.0
2080.0 0.978 304.1
2081.0 0.964 305.2
2082.0 0.949 306.3
2083.0 0.935 307.5
2084.0 0.921 308.7
2085.0 0.906 310.0
2086.0 0.892 311.3
2087.0 0.878 312.6
2088.0 0.864 314.0
2089.0 0.851 315.4
2090.0 0.837 316.9
2091.0 0.824 318.4
2092.0 0.810 320.0
2093.0 0.798 321.6
2094.0 0.785 323.3
2095.0 0.773 325.0
2096.0 0.760 326.8
2097.0 0.749 328.6
2098.0 0.737 330.5
2099.0 0.727 332.5
2100.0 0.716 334.5
2101.0 0.706 336.6
2102.0 0.697 338.7
2103.0 0.687 340.9
2104.0 0.679 343.1
2105.0 0.671 345.4
2106.0 0.664 347.8
2107.0 0.657 350.2
2108.0 0.650 352.6
2109.0 0.645 355.1
2110.0 0.640 357.7
2111.0 0.635 0.2
2112.0 0.631 2.8
2113.0 0.628 5.5
2114.0 0.625 8.2
2115.0 0.623 10.8
2116.0 0.621 13.6
2117.0 0.619 16.3
2118.0 0.618 19.0
2119.0 0.616 21.8
2120.0 0.615 24.5
2121.0 0.614 27.3
2122.0 0.613 30.1
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