| WDS: | A308 | WDS ID/Discoverer |
| P: | 174.380 | Orbital period (years) |
| a: | 0.2 | Semi-major axis (arcseconds) |
| i: | 68.4 | Inclination (degrees) |
| Ω: | 305.7 | Longitude of ascending node (degrees) |
| T: | 2015.310 | Epoch of periastron passage (year) |
| e: | 0.059 | Eccentricity |
| ω: | 26.1 | Longitude of periastron (degrees) |
| Start-Year: | 1937.81 | Year |
| End-Year: | 2112.19 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A308 |
||
| Position: | 220729.16+253811.4 | Epoch-2000 right ascension and declination |
| WDS-ID: | 22075+2538 | WDS designation |
| Discoverer Code: | A308 | Discover designation and components |
| ADS number: | 15650 | Aitken Double Star catalog |
| HD number: | 210103 | HD catalog number |
| Hipparcos number: | 109211 | Hipparcos catalog number |
| V1: | 8.83 | Magnitude of the primary |
| V2: | 9.38 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2006 | 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: | Hrt2009 | 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 0.129 330.96 -------------------------- 1937.81 0.161 145.23 1938.81 0.157 146.43 1939.81 0.153 147.69 1940.81 0.149 149.02 1941.81 0.145 150.42 1942.81 0.140 151.92 1943.81 0.136 153.51 1944.81 0.132 155.20 1945.81 0.127 157.02 1946.81 0.123 158.97 1947.81 0.118 161.06 1948.81 0.114 163.32 1949.81 0.109 165.76 1950.81 0.105 168.40 1951.81 0.101 171.26 1952.81 0.097 174.37 1953.81 0.093 177.73 1954.81 0.090 181.37 1955.81 0.086 185.30 1956.81 0.083 189.52 1957.81 0.081 194.03 1958.81 0.079 198.80 1959.81 0.077 203.81 1960.81 0.076 209.00 1961.81 0.075 214.31 1962.81 0.075 219.66 1963.81 0.076 224.97 1964.81 0.077 230.16 1965.81 0.079 235.17 1966.81 0.081 239.96 1967.81 0.083 244.47 1968.81 0.086 248.70 1969.81 0.089 252.64 1970.81 0.093 256.29 1971.81 0.097 259.67 1972.81 0.101 262.79 1973.81 0.105 265.66 1974.81 0.109 268.33 1975.81 0.113 270.79 1976.81 0.117 273.07 1977.81 0.122 275.19 1978.81 0.126 277.16 1979.81 0.130 279.01 1980.81 0.135 280.74 1981.81 0.139 282.36 1982.81 0.143 283.89 1983.81 0.147 285.33 1984.81 0.151 286.70 1985.81 0.155 288.00 1986.81 0.158 289.25 1987.81 0.162 290.43 1988.81 0.165 291.57 1989.81 0.168 292.67 1990.81 0.171 293.72 1991.81 0.174 294.75 1992.81 0.176 295.74 1993.81 0.179 296.70 1994.81 0.181 297.64 1995.81 0.183 298.56 1996.81 0.184 299.47 1997.81 0.186 300.35 1998.81 0.187 301.23 1999.81 0.188 302.09 2000.81 0.189 302.95 2001.81 0.189 303.80 2002.81 0.189 304.65 2003.81 0.189 305.49 2004.81 0.189 306.34 2005.81 0.189 307.19 2006.81 0.188 308.05 2007.81 0.187 308.91 2008.81 0.186 309.79 2009.81 0.184 310.68 2010.81 0.182 311.58 2011.81 0.180 312.50 2012.81 0.178 313.45 2013.81 0.176 314.42 2014.81 0.173 315.41 2015.81 0.170 316.44 2016.81 0.167 317.51 2017.81 0.164 318.61 2018.81 0.160 319.77 2019.81 0.157 320.97 2020.81 0.153 322.24 2021.81 0.149 323.57 2022.81 0.145 324.97 2023.81 0.141 326.46 2024.81 0.136 328.04 2025.81 0.132 329.73 2026.81 0.127 331.54 2027.81 0.123 333.48 2028.81 0.118 335.58 2029.81 0.113 337.84 2030.81 0.109 340.30 2031.81 0.104 342.98 2032.81 0.100 345.90 2033.81 0.095 349.09 2034.81 0.091 352.58 2035.81 0.087 356.40 2036.81 0.084 0.55 2037.81 0.080 5.07 2038.81 0.078 9.95 2039.81 0.075 15.17 2040.81 0.073 20.68 2041.81 0.072 26.43 2042.81 0.072 32.32 2043.81 0.072 38.25 2044.81 0.072 44.11 2045.81 0.074 49.80 2046.81 0.076 55.24 2047.81 0.078 60.36 2048.81 0.081 65.13 2049.81 0.085 69.54 2050.81 0.088 73.60 2051.81 0.093 77.31 2052.81 0.097 80.70 2053.81 0.101 83.80 2054.81 0.106 86.63 2055.81 0.111 89.22 2056.81 0.115 91.61 2057.81 0.120 93.80 2058.81 0.125 95.82 2059.81 0.130 97.70 2060.81 0.134 99.44 2061.81 0.139 101.06 2062.81 0.144 102.58 2063.81 0.148 104.01 2064.81 0.153 105.35 2065.81 0.157 106.62 2066.81 0.161 107.82 2067.81 0.165 108.96 2068.81 0.169 110.04 2069.81 0.173 111.08 2070.81 0.177 112.07 2071.81 0.180 113.03 2072.81 0.183 113.95 2073.81 0.186 114.83 2074.81 0.189 115.69 2075.81 0.192 116.53 2076.81 0.195 117.34 2077.81 0.197 118.13 2078.81 0.199 118.90 2079.81 0.201 119.65 2080.81 0.203 120.39 2081.81 0.205 121.12 2082.81 0.206 121.84 2083.81 0.207 122.55 2084.81 0.209 123.25 2085.81 0.209 123.95 2086.81 0.210 124.64 2087.81 0.210 125.32 2088.81 0.211 126.01 2089.81 0.211 126.69 2090.81 0.210 127.38 2091.81 0.210 128.07 2092.81 0.209 128.76 2093.81 0.208 129.45 2094.81 0.207 130.16 2095.81 0.206 130.86 2096.81 0.205 131.58 2097.81 0.203 132.31 2098.81 0.201 133.05 2099.81 0.199 133.81 2100.81 0.197 134.58 2101.81 0.195 135.37 2102.81 0.192 136.18 2103.81 0.190 137.01 2104.81 0.187 137.86 2105.81 0.184 138.74 2106.81 0.181 139.66 2107.81 0.177 140.60 2108.81 0.174 141.58 2109.81 0.170 142.61 2110.81 0.167 143.68 2111.81 0.163 144.79
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
|
| Report created: |
2026-06-25 18:36:55 |