| WDS: | A1377AB | WDS ID/Discoverer |
| P: | 205.891 | Orbital period (years) |
| a: | 0.2524 | Semi-major axis (arcseconds) |
| i: | 48.0 | Inclination (degrees) |
| Ω: | 57.5 | Longitude of ascending node (degrees) |
| T: | 1916.800 | Epoch of periastron passage (year) |
| e: | 0.4161 | Eccentricity |
| ω: | 262.4 | Longitude of periastron (degrees) |
| Start-Year: | 1922.0545 | Year |
| End-Year: | 2127.9455 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A1377AB |
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| Position: | 183356.69+522112.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18339+5221 | WDS designation |
| Discoverer Code: | A1377AB | Discover designation and components |
| ADS number: | 11468 | Aitken Double Star catalog |
| HD number: | 171779 | HD catalog number |
| Hipparcos number: | 91013 | Hipparcos catalog number |
| V1: | 6.20 | Magnitude of the primary |
| V2: | 6.40 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2008 | Date of last observation |
| Orbit grade: | 3 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Mut2010e | 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 0.239 144.16 -------------------------- 1922.05 0.106 351.35 1923.05 0.110 357.17 1924.05 0.114 2.56 1925.05 0.119 7.53 1926.05 0.125 12.09 1927.05 0.130 16.27 1928.05 0.136 20.11 1929.05 0.142 23.63 1930.05 0.147 26.88 1931.05 0.153 29.88 1932.05 0.159 32.66 1933.05 0.165 35.25 1934.05 0.170 37.67 1935.05 0.176 39.93 1936.05 0.181 42.07 1937.05 0.186 44.08 1938.05 0.191 45.99 1939.05 0.196 47.80 1940.05 0.200 49.53 1941.05 0.205 51.19 1942.05 0.209 52.78 1943.05 0.213 54.30 1944.05 0.216 55.78 1945.05 0.220 57.20 1946.05 0.224 58.58 1947.05 0.227 59.91 1948.05 0.230 61.21 1949.05 0.233 62.48 1950.05 0.236 63.71 1951.05 0.238 64.92 1952.05 0.241 66.10 1953.05 0.243 67.26 1954.05 0.245 68.40 1955.05 0.247 69.52 1956.05 0.249 70.62 1957.05 0.251 71.70 1958.05 0.253 72.77 1959.05 0.254 73.83 1960.05 0.255 74.87 1961.05 0.257 75.91 1962.05 0.258 76.93 1963.05 0.259 77.94 1964.05 0.260 78.95 1965.05 0.261 79.95 1966.05 0.262 80.94 1967.05 0.262 81.93 1968.05 0.263 82.91 1969.05 0.264 83.89 1970.05 0.264 84.86 1971.05 0.264 85.83 1972.05 0.265 86.80 1973.05 0.265 87.77 1974.05 0.265 88.73 1975.05 0.265 89.70 1976.05 0.265 90.66 1977.05 0.265 91.63 1978.05 0.265 92.59 1979.05 0.265 93.55 1980.05 0.265 94.52 1981.05 0.265 95.49 1982.05 0.264 96.45 1983.05 0.264 97.42 1984.05 0.264 98.40 1985.05 0.263 99.37 1986.05 0.263 100.35 1987.05 0.263 101.33 1988.05 0.262 102.32 1989.05 0.262 103.31 1990.05 0.261 104.30 1991.05 0.260 105.30 1992.05 0.260 106.30 1993.05 0.259 107.31 1994.05 0.259 108.32 1995.05 0.258 109.33 1996.05 0.257 110.35 1997.05 0.257 111.38 1998.05 0.256 112.41 1999.05 0.255 113.45 2000.05 0.255 114.49 2001.05 0.254 115.54 2002.05 0.253 116.59 2003.05 0.253 117.65 2004.05 0.252 118.72 2005.05 0.251 119.79 2006.05 0.250 120.87 2007.05 0.250 121.95 2008.05 0.249 123.04 2009.05 0.248 124.14 2010.05 0.248 125.24 2011.05 0.247 126.35 2012.05 0.246 127.46 2013.05 0.246 128.58 2014.05 0.245 129.71 2015.05 0.244 130.84 2016.05 0.244 131.98 2017.05 0.243 133.12 2018.05 0.243 134.27 2019.05 0.242 135.42 2020.05 0.242 136.58 2021.05 0.241 137.75 2022.05 0.241 138.91 2023.05 0.240 140.09 2024.05 0.240 141.27 2025.05 0.239 142.45 2026.05 0.239 143.63 2027.05 0.238 144.82 2028.05 0.238 146.02 2029.05 0.238 147.22 2030.05 0.237 148.42 2031.05 0.237 149.62 2032.05 0.237 150.83 2033.05 0.237 152.03 2034.05 0.236 153.25 2035.05 0.236 154.46 2036.05 0.236 155.67 2037.05 0.236 156.89 2038.05 0.236 158.11 2039.05 0.236 159.33 2040.05 0.236 160.54 2041.05 0.236 161.76 2042.05 0.236 162.98 2043.05 0.236 164.20 2044.05 0.236 165.42 2045.05 0.236 166.64 2046.05 0.236 167.86 2047.05 0.236 169.08 2048.05 0.236 170.30 2049.05 0.236 171.51 2050.05 0.236 172.73 2051.05 0.236 173.94 2052.05 0.237 175.15 2053.05 0.237 176.36 2054.05 0.237 177.57 2055.05 0.237 178.78 2056.05 0.237 179.99 2057.05 0.237 181.19 2058.05 0.238 182.39 2059.05 0.238 183.59 2060.05 0.238 184.79 2061.05 0.238 185.99 2062.05 0.238 187.18 2063.05 0.238 188.38 2064.05 0.238 189.57 2065.05 0.239 190.76 2066.05 0.239 191.95 2067.05 0.239 193.14 2068.05 0.239 194.33 2069.05 0.239 195.52 2070.05 0.239 196.71 2071.05 0.239 197.90 2072.05 0.238 199.09 2073.05 0.238 200.29 2074.05 0.238 201.48 2075.05 0.238 202.68 2076.05 0.238 203.88 2077.05 0.237 205.08 2078.05 0.237 206.29 2079.05 0.236 207.50 2080.05 0.236 208.71 2081.05 0.235 209.94 2082.05 0.234 211.17 2083.05 0.233 212.41 2084.05 0.233 213.66 2085.05 0.232 214.91 2086.05 0.230 216.18 2087.05 0.229 217.47 2088.05 0.228 218.76 2089.05 0.226 220.08 2090.05 0.225 221.41 2091.05 0.223 222.76 2092.05 0.221 224.13 2093.05 0.219 225.53 2094.05 0.217 226.96 2095.05 0.215 228.41 2096.05 0.212 229.90 2097.05 0.209 231.42 2098.05 0.207 232.99 2099.05 0.204 234.60 2100.05 0.200 236.26 2101.05 0.197 237.98 2102.05 0.193 239.76 2103.05 0.189 241.62 2104.05 0.185 243.55 2105.05 0.181 245.57 2106.05 0.177 247.69 2107.05 0.172 249.93 2108.05 0.167 252.29 2109.05 0.162 254.79 2110.05 0.157 257.46 2111.05 0.151 260.32 2112.05 0.146 263.39 2113.05 0.140 266.69 2114.05 0.135 270.27 2115.05 0.129 274.15 2116.05 0.124 278.37 2117.05 0.119 282.96 2118.05 0.114 287.94 2119.05 0.110 293.34 2120.05 0.106 299.16 2121.05 0.103 305.37 2122.05 0.101 311.92 2123.05 0.099 318.71 2124.05 0.099 325.63 2125.05 0.099 332.55 2126.05 0.101 339.32 2127.05 0.103 345.83
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:52:52 |