| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:40:36 |
| WDS: | D15 | WDS ID/Discoverer |
| P: | 120.050 | Orbital period (years) |
| a: | 0.975 | Semi-major axis (arcseconds) |
| i: | 118.2 | Inclination (degrees) |
| Ω: | 145.6 | Longitude of ascending node (degrees) |
| T: | 1895.020 | Epoch of periastron passage (year) |
| e: | 0.418 | Eccentricity |
| ω: | 149.7 | Longitude of periastron (degrees) |
| Start-Year: | 1965.0 | Year |
| End-Year: | 2085.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 164356.29+432831.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 16439+4329 | WDS designation |
| Discoverer Code: | D15 | Discover designation and components |
| ADS number: | 10188 | Aitken Double Star catalog |
| HD number: | 151188 | HD catalog number |
| Hipparcos number: | 81919 | Hipparcos catalog number |
| V1: | 9.04 | Magnitude of the primary |
| V2: | 9.27 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2007 | 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)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.584 305.0 ------------------------- 1965.0 1.311 153.6 1966.0 1.313 152.9 1967.0 1.313 152.2 1968.0 1.312 151.5 1969.0 1.310 150.8 1970.0 1.306 150.1 1971.0 1.302 149.4 1972.0 1.296 148.6 1973.0 1.289 147.9 1974.0 1.280 147.2 1975.0 1.271 146.4 1976.0 1.260 145.6 1977.0 1.247 144.9 1978.0 1.233 144.1 1979.0 1.218 143.3 1980.0 1.201 142.4 1981.0 1.183 141.6 1982.0 1.163 140.7 1983.0 1.142 139.7 1984.0 1.120 138.8 1985.0 1.095 137.8 1986.0 1.069 136.7 1987.0 1.042 135.6 1988.0 1.013 134.5 1989.0 0.982 133.3 1990.0 0.950 131.9 1991.0 0.916 130.5 1992.0 0.880 129.0 1993.0 0.843 127.4 1994.0 0.804 125.6 1995.0 0.764 123.6 1996.0 0.723 121.4 1997.0 0.680 118.9 1998.0 0.636 116.0 1999.0 0.592 112.8 2000.0 0.547 109.0 2001.0 0.502 104.5 2002.0 0.459 99.2 2003.0 0.418 92.8 2004.0 0.380 85.1 2005.0 0.348 75.8 2006.0 0.325 65.0 2007.0 0.312 52.9 2008.0 0.311 40.2 2009.0 0.323 27.9 2010.0 0.344 16.9 2011.0 0.373 7.3 2012.0 0.406 359.2 2013.0 0.440 352.3 2014.0 0.474 346.5 2015.0 0.506 341.4 2016.0 0.535 336.9 2017.0 0.559 332.8 2018.0 0.578 329.0 2019.0 0.592 325.4 2020.0 0.601 322.0 2021.0 0.605 318.6 2022.0 0.605 315.3 2023.0 0.601 311.9 2024.0 0.594 308.5 2025.0 0.584 305.0 2026.0 0.572 301.3 2027.0 0.559 297.5 2028.0 0.545 293.5 2029.0 0.530 289.2 2030.0 0.516 284.8 2031.0 0.503 280.1 2032.0 0.491 275.1 2033.0 0.481 269.9 2034.0 0.474 264.6 2035.0 0.469 259.0 2036.0 0.467 253.4 2037.0 0.468 247.8 2038.0 0.472 242.3 2039.0 0.480 236.9 2040.0 0.490 231.7 2041.0 0.503 226.7 2042.0 0.519 222.0 2043.0 0.536 217.6 2044.0 0.556 213.5 2045.0 0.577 209.7 2046.0 0.600 206.2 2047.0 0.624 202.9 2048.0 0.648 199.9 2049.0 0.674 197.1 2050.0 0.699 194.5 2051.0 0.725 192.0 2052.0 0.752 189.8 2053.0 0.778 187.7 2054.0 0.804 185.7 2055.0 0.830 183.9 2056.0 0.856 182.2 2057.0 0.882 180.6 2058.0 0.907 179.0 2059.0 0.932 177.6 2060.0 0.956 176.2 2061.0 0.980 174.9 2062.0 1.003 173.7 2063.0 1.026 172.5 2064.0 1.048 171.3 2065.0 1.069 170.3 2066.0 1.089 169.2 2067.0 1.109 168.2 2068.0 1.128 167.2 2069.0 1.146 166.3 2070.0 1.164 165.4 2071.0 1.180 164.5 2072.0 1.196 163.6 2073.0 1.210 162.7 2074.0 1.224 161.9 2075.0 1.237 161.1 2076.0 1.249 160.3 2077.0 1.260 159.5 2078.0 1.270 158.8 2079.0 1.279 158.0 2080.0 1.287 157.3 2081.0 1.294 156.5 2082.0 1.300 155.8 2083.0 1.305 155.1 2084.0 1.308 154.4