| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:34:58 |
| WDS: | B1554 | WDS ID/Discoverer |
| P: | 113.800 | Orbital period (years) |
| a: | 0.228 | Semi-major axis (arcseconds) |
| i: | 68.7 | Inclination (degrees) |
| Ω: | 150.3 | Longitude of ascending node (degrees) |
| T: | 1984.200 | Epoch of periastron passage (year) |
| e: | 0.254 | Eccentricity |
| ω: | 356.7 | Longitude of periastron (degrees) |
| Start-Year: | 1969.0 | Year |
| End-Year: | 2081.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 073757.57-320752.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 07380-3208 | WDS designation |
| Discoverer Code: | B1554 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 61431 | HD catalog number |
| Hipparcos number: | 37145 | Hipparcos catalog number |
| V1: | 6.99 | Magnitude of the primary |
| V2: | 8.72 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2018 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | n | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.228 315.7 ------------------------- 1969.0 0.083 91.1 1970.0 0.088 99.0 1971.0 0.094 106.0 1972.0 0.102 112.1 1973.0 0.109 117.3 1974.0 0.117 121.8 1975.0 0.125 125.7 1976.0 0.132 129.2 1977.0 0.140 132.4 1978.0 0.146 135.2 1979.0 0.152 137.8 1980.0 0.158 140.2 1981.0 0.162 142.5 1982.0 0.166 144.6 1983.0 0.168 146.7 1984.0 0.170 148.7 1985.0 0.170 150.7 1986.0 0.170 152.7 1987.0 0.168 154.7 1988.0 0.166 156.8 1989.0 0.162 159.0 1990.0 0.158 161.2 1991.0 0.152 163.6 1992.0 0.147 166.2 1993.0 0.140 169.0 1994.0 0.133 172.1 1995.0 0.126 175.5 1996.0 0.118 179.4 1997.0 0.111 183.8 1998.0 0.104 188.9 1999.0 0.097 194.6 2000.0 0.090 201.2 2001.0 0.085 208.7 2002.0 0.081 217.1 2003.0 0.079 226.1 2004.0 0.078 235.5 2005.0 0.079 244.9 2006.0 0.082 253.7 2007.0 0.087 261.8 2008.0 0.093 269.0 2009.0 0.099 275.3 2010.0 0.107 280.8 2011.0 0.115 285.5 2012.0 0.123 289.6 2013.0 0.132 293.1 2014.0 0.141 296.3 2015.0 0.149 299.0 2016.0 0.158 301.5 2017.0 0.167 303.6 2018.0 0.175 305.6 2019.0 0.183 307.4 2020.0 0.191 309.1 2021.0 0.199 310.6 2022.0 0.207 312.0 2023.0 0.214 313.3 2024.0 0.221 314.5 2025.0 0.228 315.7 2026.0 0.234 316.7 2027.0 0.240 317.8 2028.0 0.246 318.7 2029.0 0.251 319.7 2030.0 0.256 320.6 2031.0 0.261 321.4 2032.0 0.265 322.3 2033.0 0.269 323.1 2034.0 0.272 323.9 2035.0 0.275 324.7 2036.0 0.278 325.4 2037.0 0.280 326.2 2038.0 0.282 326.9 2039.0 0.284 327.6 2040.0 0.285 328.3 2041.0 0.285 329.0 2042.0 0.286 329.7 2043.0 0.286 330.4 2044.0 0.285 331.2 2045.0 0.284 331.9 2046.0 0.283 332.6 2047.0 0.281 333.3 2048.0 0.279 334.0 2049.0 0.277 334.8 2050.0 0.274 335.6 2051.0 0.271 336.3 2052.0 0.267 337.1 2053.0 0.263 338.0 2054.0 0.259 338.8 2055.0 0.254 339.7 2056.0 0.249 340.6 2057.0 0.243 341.5 2058.0 0.237 342.6 2059.0 0.231 343.6 2060.0 0.224 344.7 2061.0 0.217 345.9 2062.0 0.210 347.2 2063.0 0.202 348.5 2064.0 0.194 350.0 2065.0 0.186 351.6 2066.0 0.178 353.3 2067.0 0.169 355.3 2068.0 0.160 357.4 2069.0 0.151 359.8 2070.0 0.142 2.4 2071.0 0.133 5.5 2072.0 0.124 9.0 2073.0 0.115 13.0 2074.0 0.107 17.7 2075.0 0.099 23.2 2076.0 0.092 29.5 2077.0 0.086 36.9 2078.0 0.081 45.3 2079.0 0.077 54.6 2080.0 0.076 64.5