| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:59:34 |
| WDS: | HDS564 | WDS ID/Discoverer |
| P: | 111.750 | Orbital period (years) |
| a: | 0.731 | Semi-major axis (arcseconds) |
| i: | 116.1 | Inclination (degrees) |
| Ω: | 162.6 | Longitude of ascending node (degrees) |
| T: | 1995.330 | Epoch of periastron passage (year) |
| e: | 0.97 | Eccentricity |
| ω: | 108.1 | Longitude of periastron (degrees) |
| Start-Year: | 1970.0 | Year |
| End-Year: | 2080.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 042412.40+144529.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04242+1445 | WDS designation |
| Discoverer Code: | HDS564 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 27836 | HD catalog number |
| Hipparcos number: | 20553 | Hipparcos catalog number |
| V1: | 7.78 | Magnitude of the primary |
| V2: | 10.80 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2004 | 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 0.590 226.4 ------------------------- 1970.0 0.672 205.6 1971.0 0.663 205.2 1972.0 0.653 204.8 1973.0 0.644 204.3 1974.0 0.633 203.9 1975.0 0.622 203.4 1976.0 0.610 202.9 1977.0 0.598 202.4 1978.0 0.585 201.9 1979.0 0.571 201.4 1980.0 0.556 200.8 1981.0 0.541 200.2 1982.0 0.524 199.5 1983.0 0.507 198.8 1984.0 0.488 198.1 1985.0 0.468 197.3 1986.0 0.446 196.4 1987.0 0.423 195.4 1988.0 0.398 194.3 1989.0 0.370 193.1 1990.0 0.340 191.6 1991.0 0.306 189.8 1992.0 0.267 187.6 1993.0 0.221 184.5 1994.0 0.162 179.4 1995.0 0.068 164.4 1996.0 0.074 307.3 1997.0 0.111 285.5 1998.0 0.141 273.9 1999.0 0.169 266.2 2000.0 0.195 260.6 2001.0 0.219 256.3 2002.0 0.242 252.8 2003.0 0.264 249.9 2004.0 0.285 247.5 2005.0 0.305 245.4 2006.0 0.325 243.5 2007.0 0.343 241.9 2008.0 0.361 240.4 2009.0 0.379 239.0 2010.0 0.395 237.8 2011.0 0.411 236.7 2012.0 0.427 235.6 2013.0 0.442 234.7 2014.0 0.457 233.8 2015.0 0.471 232.9 2016.0 0.485 232.1 2017.0 0.498 231.3 2018.0 0.511 230.6 2019.0 0.523 229.9 2020.0 0.536 229.3 2021.0 0.547 228.6 2022.0 0.559 228.0 2023.0 0.570 227.5 2024.0 0.580 226.9 2025.0 0.590 226.4 2026.0 0.600 225.8 2027.0 0.610 225.3 2028.0 0.619 224.8 2029.0 0.628 224.4 2030.0 0.637 223.9 2031.0 0.645 223.5 2032.0 0.653 223.0 2033.0 0.661 222.6 2034.0 0.668 222.2 2035.0 0.675 221.8 2036.0 0.682 221.4 2037.0 0.689 221.0 2038.0 0.695 220.6 2039.0 0.701 220.2 2040.0 0.706 219.9 2041.0 0.712 219.5 2042.0 0.717 219.1 2043.0 0.722 218.8 2044.0 0.726 218.4 2045.0 0.730 218.1 2046.0 0.734 217.7 2047.0 0.738 217.4 2048.0 0.741 217.1 2049.0 0.744 216.7 2050.0 0.747 216.4 2051.0 0.750 216.1 2052.0 0.752 215.7 2053.0 0.754 215.4 2054.0 0.756 215.1 2055.0 0.757 214.8 2056.0 0.758 214.4 2057.0 0.759 214.1 2058.0 0.759 213.8 2059.0 0.759 213.5 2060.0 0.759 213.2 2061.0 0.759 212.8 2062.0 0.758 212.5 2063.0 0.757 212.2 2064.0 0.756 211.9 2065.0 0.754 211.6 2066.0 0.752 211.2 2067.0 0.750 210.9 2068.0 0.747 210.6 2069.0 0.744 210.2 2070.0 0.741 209.9 2071.0 0.737 209.6 2072.0 0.733 209.2 2073.0 0.728 208.9 2074.0 0.724 208.5 2075.0 0.718 208.2 2076.0 0.713 207.8 2077.0 0.707 207.5 2078.0 0.700 207.1 2079.0 0.693 206.7