| WDS: | ESG1 | WDS ID/Discoverer |
| P: | 341.500 | Orbital period (years) |
| a: | 4.393 | Semi-major axis (arcseconds) |
| i: | 125.4 | Inclination (degrees) |
| Ω: | 79.6 | Longitude of ascending node (degrees) |
| T: | 2000.500 | Epoch of periastron passage (year) |
| e: | 0.49 | Eccentricity |
| ω: | 306.4 | Longitude of periastron (degrees) |
| Start-Year: | 1854.25 | Year |
| End-Year: | 2195.75 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for ESG1 |
||
| Position: | 021025.98-504925.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02104-5049 | WDS designation |
| Discoverer Code: | ESG1 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 13445 | HD catalog number |
| Hipparcos number: | 10138 | Hipparcos catalog number |
| V1: | 6.17 | Magnitude of the primary |
| V2: | 13.2 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2012 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Msn2017c | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 2.829 66.77 -------------------------- 1854.25 5.343 288.28 1855.25 5.355 287.92 1856.25 5.367 287.56 1857.25 5.379 287.20 1858.25 5.390 286.85 1859.25 5.401 286.50 1860.25 5.411 286.15 1861.25 5.421 285.80 1862.25 5.431 285.45 1863.25 5.440 285.10 1864.25 5.449 284.75 1865.25 5.458 284.41 1866.25 5.466 284.06 1867.25 5.473 283.72 1868.25 5.480 283.38 1869.25 5.487 283.03 1870.25 5.493 282.69 1871.25 5.499 282.35 1872.25 5.505 282.01 1873.25 5.510 281.68 1874.25 5.514 281.34 1875.25 5.518 281.00 1876.25 5.522 280.66 1877.25 5.525 280.33 1878.25 5.527 279.99 1879.25 5.529 279.65 1880.25 5.531 279.32 1881.25 5.532 278.98 1882.25 5.533 278.65 1883.25 5.533 278.31 1884.25 5.532 277.98 1885.25 5.531 277.64 1886.25 5.530 277.30 1887.25 5.528 276.97 1888.25 5.525 276.63 1889.25 5.522 276.29 1890.25 5.519 275.96 1891.25 5.514 275.62 1892.25 5.509 275.28 1893.25 5.504 274.94 1894.25 5.498 274.60 1895.25 5.491 274.26 1896.25 5.484 273.92 1897.25 5.476 273.58 1898.25 5.468 273.24 1899.25 5.459 272.89 1900.25 5.449 272.55 1901.25 5.439 272.20 1902.25 5.428 271.85 1903.25 5.416 271.50 1904.25 5.404 271.15 1905.25 5.391 270.80 1906.25 5.378 270.45 1907.25 5.363 270.09 1908.25 5.348 269.73 1909.25 5.333 269.37 1910.25 5.316 269.01 1911.25 5.299 268.64 1912.25 5.281 268.28 1913.25 5.262 267.91 1914.25 5.243 267.54 1915.25 5.223 267.16 1916.25 5.202 266.78 1917.25 5.180 266.40 1918.25 5.158 266.02 1919.25 5.134 265.63 1920.25 5.110 265.24 1921.25 5.085 264.84 1922.25 5.059 264.44 1923.25 5.033 264.04 1924.25 5.005 263.63 1925.25 4.977 263.22 1926.25 4.947 262.80 1927.25 4.917 262.38 1928.25 4.886 261.95 1929.25 4.854 261.52 1930.25 4.821 261.08 1931.25 4.787 260.63 1932.25 4.752 260.18 1933.25 4.717 259.72 1934.25 4.680 259.26 1935.25 4.642 258.79 1936.25 4.603 258.31 1937.25 4.563 257.82 1938.25 4.523 257.32 1939.25 4.481 256.81 1940.25 4.438 256.30 1941.25 4.394 255.77 1942.25 4.349 255.23 1943.25 4.302 254.68 1944.25 4.255 254.12 1945.25 4.206 253.55 1946.25 4.157 252.96 1947.25 4.106 252.36 1948.25 4.054 251.74 1949.25 4.001 251.11 1950.25 3.947 250.46 1951.25 3.891 249.79 1952.25 3.835 249.10 1953.25 3.777 248.39 1954.25 3.718 247.66 1955.25 3.657 246.90 1956.25 3.596 246.12 1957.25 3.533 245.31 1958.25 3.469 244.47 1959.25 3.404 243.60 1960.25 3.338 242.70 1961.25 3.270 241.76 1962.25 3.202 240.78 1963.25 3.132 239.75 1964.25 3.061 238.68 1965.25 2.989 237.56 1966.25 2.916 236.38 1967.25 2.842 235.14 1968.25 2.767 233.84 1969.25 2.692 232.46 1970.25 2.615 231.00 1971.25 2.538 229.45 1972.25 2.461 227.81 1973.25 2.383 226.05 1974.25 2.306 224.19 1975.25 2.228 222.19 1976.25 2.151 220.04 1977.25 2.074 217.74 1978.25 1.998 215.26 1979.25 1.924 212.59 1980.25 1.852 209.70 1981.25 1.782 206.59 1982.25 1.715 203.23 1983.25 1.652 199.60 1984.25 1.593 195.70 1985.25 1.540 191.51 1986.25 1.493 187.03 1987.25 1.452 182.29 1988.25 1.420 177.30 1989.25 1.395 172.11 1990.25 1.380 166.77 1991.25 1.374 161.34 1992.25 1.377 155.91 1993.25 1.390 150.53 1994.25 1.411 145.29 1995.25 1.440 140.23 1996.25 1.477 135.39 1997.25 1.519 130.81 1998.25 1.568 126.49 1999.25 1.620 122.45 2000.25 1.676 118.66 2001.25 1.735 115.13 2002.25 1.795 111.83 2003.25 1.857 108.75 2004.25 1.918 105.87 2005.25 1.980 103.16 2006.25 2.041 100.62 2007.25 2.100 98.22 2008.25 2.159 95.96 2009.25 2.215 93.81 2010.25 2.270 91.77 2011.25 2.322 89.82 2012.25 2.372 87.95 2013.25 2.420 86.16 2014.25 2.465 84.44 2015.25 2.508 82.78 2016.25 2.548 81.17 2017.25 2.586 79.61 2018.25 2.621 78.10 2019.25 2.654 76.62 2020.25 2.685 75.18 2021.25 2.713 73.77 2022.25 2.740 72.39 2023.25 2.764 71.03 2024.25 2.786 69.70 2025.25 2.806 68.38 2026.25 2.825 67.09 2027.25 2.841 65.81 2028.25 2.857 64.54 2029.25 2.870 63.29 2030.25 2.882 62.05 2031.25 2.893 60.82 2032.25 2.902 59.59 2033.25 2.911 58.38 2034.25 2.918 57.17 2035.25 2.924 55.96 2036.25 2.930 54.76 2037.25 2.934 53.57 2038.25 2.938 52.38 2039.25 2.941 51.19 2040.25 2.943 50.00 2041.25 2.945 48.82 2042.25 2.946 47.63 2043.25 2.947 46.45 2044.25 2.947 45.27 2045.25 2.947 44.08 2046.25 2.947 42.90 2047.25 2.946 41.72 2048.25 2.946 40.53 2049.25 2.945 39.35 2050.25 2.944 38.16 2051.25 2.943 36.98 2052.25 2.942 35.79 2053.25 2.942 34.60 2054.25 2.941 33.42 2055.25 2.940 32.23 2056.25 2.940 31.04 2057.25 2.939 29.85 2058.25 2.939 28.66 2059.25 2.939 27.47 2060.25 2.940 26.28 2061.25 2.941 25.10 2062.25 2.942 23.91 2063.25 2.943 22.72 2064.25 2.945 21.54 2065.25 2.947 20.35 2066.25 2.950 19.17 2067.25 2.952 17.99 2068.25 2.956 16.81 2069.25 2.960 15.64 2070.25 2.964 14.47 2071.25 2.969 13.30 2072.25 2.974 12.14 2073.25 2.980 10.98 2074.25 2.986 9.82 2075.25 2.993 8.67 2076.25 3.000 7.53 2077.25 3.008 6.39 2078.25 3.016 5.26 2079.25 3.025 4.13 2080.25 3.034 3.01 2081.25 3.044 1.90 2082.25 3.054 0.80 2083.25 3.065 359.70 2084.25 3.076 358.61 2085.25 3.088 357.53 2086.25 3.100 356.45 2087.25 3.113 355.39 2088.25 3.126 354.33 2089.25 3.140 353.29 2090.25 3.154 352.25 2091.25 3.169 351.22 2092.25 3.184 350.20 2093.25 3.199 349.19 2094.25 3.216 348.20 2095.25 3.232 347.21 2096.25 3.249 346.23 2097.25 3.266 345.26 2098.25 3.284 344.30 2099.25 3.302 343.35 2100.25 3.320 342.42 2101.25 3.339 341.49 2102.25 3.358 340.57 2103.25 3.378 339.67 2104.25 3.397 338.77 2105.25 3.418 337.89 2106.25 3.438 337.01 2107.25 3.459 336.15 2108.25 3.480 335.30 2109.25 3.501 334.45 2110.25 3.523 333.62 2111.25 3.544 332.80 2112.25 3.566 331.99 2113.25 3.589 331.18 2114.25 3.611 330.39 2115.25 3.634 329.61 2116.25 3.657 328.83 2117.25 3.680 328.07 2118.25 3.703 327.32 2119.25 3.726 326.57 2120.25 3.750 325.84 2121.25 3.774 325.11 2122.25 3.797 324.39 2123.25 3.821 323.69 2124.25 3.845 322.99 2125.25 3.870 322.30 2126.25 3.894 321.61 2127.25 3.918 320.94 2128.25 3.942 320.28 2129.25 3.967 319.62 2130.25 3.991 318.97 2131.25 4.016 318.33 2132.25 4.040 317.70 2133.25 4.065 317.07 2134.25 4.090 316.45 2135.25 4.114 315.84 2136.25 4.139 315.24 2137.25 4.163 314.64 2138.25 4.188 314.05 2139.25 4.212 313.47 2140.25 4.237 312.90 2141.25 4.261 312.33 2142.25 4.286 311.76 2143.25 4.310 311.21 2144.25 4.334 310.66 2145.25 4.358 310.11 2146.25 4.383 309.58 2147.25 4.407 309.04 2148.25 4.431 308.52 2149.25 4.454 308.00 2150.25 4.478 307.48 2151.25 4.502 306.97 2152.25 4.525 306.47 2153.25 4.549 305.97 2154.25 4.572 305.48 2155.25 4.595 304.99 2156.25 4.618 304.50 2157.25 4.641 304.02 2158.25 4.663 303.55 2159.25 4.686 303.08 2160.25 4.708 302.61 2161.25 4.730 302.15 2162.25 4.752 301.69 2163.25 4.774 301.24 2164.25 4.795 300.79 2165.25 4.816 300.35 2166.25 4.838 299.91 2167.25 4.858 299.47 2168.25 4.879 299.04 2169.25 4.900 298.61 2170.25 4.920 298.18 2171.25 4.940 297.76 2172.25 4.960 297.34 2173.25 4.979 296.92 2174.25 4.998 296.51 2175.25 5.017 296.10 2176.25 5.036 295.69 2177.25 5.055 295.29 2178.25 5.073 294.89 2179.25 5.091 294.49 2180.25 5.108 294.10 2181.25 5.126 293.70 2182.25 5.143 293.31 2183.25 5.160 292.93 2184.25 5.176 292.54 2185.25 5.192 292.16 2186.25 5.208 291.78 2187.25 5.224 291.40 2188.25 5.239 291.03 2189.25 5.254 290.65 2190.25 5.269 290.28 2191.25 5.283 289.91 2192.25 5.297 289.55 2193.25 5.310 289.18 2194.25 5.324 288.82 2195.25 5.337 288.46
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:57:24 |