| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:40:18 |
| WDS: | STF2987 | WDS ID/Discoverer |
| P: | 2176.792 | Orbital period (years) |
| a: | 8.12352 | Semi-major axis (arcseconds) |
| i: | 105.825 | Inclination (degrees) |
| Ω: | 0.967 | Longitude of ascending node (degrees) |
| T: | 1740.757 | Epoch of periastron passage (year) |
| e: | 0.85736 | Eccentricity |
| ω: | 94.316 | Longitude of periastron (degrees) |
| Start-Year: | 937.0 | Year |
| End-Year: | 3113.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 231021.28+490106.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 23104+4901 | WDS designation |
| Discoverer Code: | STF2987 | Discover designation and components |
| ADS number: | 16562 | Aitken Double Star catalog |
| HD number: | 218790 | HD catalog number |
| Hipparcos number: | 114420 | Hipparcos catalog number |
| V1: | 7.42 | Magnitude of the primary |
| V2: | 10.41 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 5 | 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 4.188 149.2 ------------------------- 937.0 4.809 54.1 947.0 4.829 53.4 957.0 4.850 52.8 967.0 4.870 52.1 977.0 4.890 51.5 987.0 4.910 50.8 997.0 4.930 50.2 1007.0 4.950 49.6 1017.0 4.969 49.0 1027.0 4.989 48.3 1037.0 5.008 47.7 1047.0 5.026 47.1 1057.0 5.045 46.5 1067.0 5.063 45.9 1077.0 5.080 45.3 1087.0 5.098 44.7 1097.0 5.115 44.1 1107.0 5.131 43.6 1117.0 5.147 43.0 1127.0 5.163 42.4 1137.0 5.178 41.8 1147.0 5.193 41.3 1157.0 5.207 40.7 1167.0 5.220 40.1 1177.0 5.233 39.6 1187.0 5.245 39.0 1197.0 5.257 38.5 1207.0 5.267 37.9 1217.0 5.277 37.4 1227.0 5.286 36.8 1237.0 5.295 36.3 1247.0 5.302 35.7 1257.0 5.309 35.2 1267.0 5.314 34.6 1277.0 5.319 34.1 1287.0 5.322 33.5 1297.0 5.325 33.0 1307.0 5.326 32.5 1317.0 5.326 31.9 1327.0 5.325 31.4 1337.0 5.322 30.8 1347.0 5.318 30.3 1357.0 5.312 29.8 1367.0 5.305 29.2 1377.0 5.296 28.7 1387.0 5.285 28.1 1397.0 5.273 27.6 1407.0 5.258 27.0 1417.0 5.242 26.5 1427.0 5.223 25.9 1437.0 5.202 25.3 1447.0 5.178 24.8 1457.0 5.152 24.2 1467.0 5.123 23.6 1477.0 5.090 23.0 1487.0 5.055 22.4 1497.0 5.016 21.8 1507.0 4.974 21.2 1517.0 4.927 20.6 1527.0 4.876 20.0 1537.0 4.821 19.3 1547.0 4.760 18.6 1557.0 4.693 17.9 1567.0 4.621 17.2 1577.0 4.542 16.5 1587.0 4.455 15.8 1597.0 4.359 15.0 1607.0 4.254 14.1 1617.0 4.139 13.3 1627.0 4.011 12.3 1637.0 3.869 11.4 1647.0 3.710 10.3 1657.0 3.531 9.1 1667.0 3.328 7.8 1677.0 3.095 6.3 1687.0 2.824 4.6 1697.0 2.504 2.4 1707.0 2.118 359.6 1717.0 1.640 355.2 1727.0 1.042 346.4 1737.0 0.390 307.0 1747.0 0.665 206.6 1757.0 1.311 189.3 1767.0 1.821 183.0 1777.0 2.210 179.2 1787.0 2.515 176.5 1797.0 2.761 174.3 1807.0 2.963 172.4 1817.0 3.133 170.7 1827.0 3.277 169.3 1837.0 3.400 167.9 1847.0 3.507 166.6 1857.0 3.600 165.4 1867.0 3.682 164.2 1877.0 3.753 163.1 1887.0 3.816 162.1 1897.0 3.871 161.0 1907.0 3.920 160.0 1917.0 3.963 159.0 1927.0 4.001 158.1 1937.0 4.034 157.1 1947.0 4.064 156.2 1957.0 4.089 155.3 1967.0 4.111 154.3 1977.0 4.130 153.4 1987.0 4.147 152.5 1997.0 4.161 151.7 2007.0 4.172 150.8 2017.0 4.182 149.9 2027.0 4.190 149.0 2037.0 4.196 148.2 2047.0 4.200 147.3 2057.0 4.204 146.4 2067.0 4.205 145.5 2077.0 4.206 144.7 2087.0 4.205 143.8 2097.0 4.204 142.9 2107.0 4.202 142.1 2117.0 4.199 141.2 2127.0 4.195 140.3 2137.0 4.190 139.5 2147.0 4.185 138.6 2157.0 4.180 137.7 2167.0 4.173 136.8 2177.0 4.167 136.0 2187.0 4.160 135.1 2197.0 4.153 134.2 2207.0 4.146 133.3 2217.0 4.138 132.4 2227.0 4.131 131.5 2237.0 4.123 130.6 2247.0 4.115 129.7 2257.0 4.108 128.8 2267.0 4.100 127.9 2277.0 4.092 127.0 2287.0 4.084 126.1 2297.0 4.077 125.1 2307.0 4.069 124.2 2317.0 4.062 123.3 2327.0 4.055 122.4 2337.0 4.048 121.4 2347.0 4.042 120.5 2357.0 4.035 119.6 2367.0 4.029 118.6 2377.0 4.023 117.7 2387.0 4.018 116.7 2397.0 4.013 115.8 2407.0 4.008 114.8 2417.0 4.004 113.9 2427.0 4.000 112.9 2437.0 3.997 112.0 2447.0 3.994 111.0 2457.0 3.991 110.0 2467.0 3.989 109.1 2477.0 3.987 108.1 2487.0 3.986 107.1 2497.0 3.986 106.2 2507.0 3.985 105.2 2517.0 3.986 104.2 2527.0 3.987 103.3 2537.0 3.988 102.3 2547.0 3.990 101.4 2557.0 3.992 100.4 2567.0 3.995 99.4 2577.0 3.999 98.5 2587.0 4.003 97.5 2597.0 4.008 96.6 2607.0 4.013 95.6 2617.0 4.018 94.7 2627.0 4.024 93.7 2637.0 4.031 92.8 2647.0 4.038 91.8 2657.0 4.046 90.9 2667.0 4.055 90.0 2677.0 4.063 89.0 2687.0 4.073 88.1 2697.0 4.083 87.2 2707.0 4.093 86.3 2717.0 4.104 85.4 2727.0 4.115 84.4 2737.0 4.127 83.5 2747.0 4.139 82.6 2757.0 4.152 81.8 2767.0 4.165 80.9 2777.0 4.179 80.0 2787.0 4.193 79.1 2797.0 4.208 78.2 2807.0 4.223 77.4 2817.0 4.238 76.5 2827.0 4.254 75.7 2837.0 4.270 74.8 2847.0 4.286 74.0 2857.0 4.303 73.2 2867.0 4.320 72.3 2877.0 4.338 71.5 2887.0 4.356 70.7 2897.0 4.374 69.9 2907.0 4.392 69.1 2917.0 4.411 68.3 2927.0 4.429 67.5 2937.0 4.449 66.8 2947.0 4.468 66.0 2957.0 4.487 65.2 2967.0 4.507 64.5 2977.0 4.527 63.7 2987.0 4.547 63.0 2997.0 4.567 62.2 3007.0 4.588 61.5 3017.0 4.608 60.8 3027.0 4.629 60.1 3037.0 4.649 59.4 3047.0 4.670 58.6 3057.0 4.691 57.9 3067.0 4.712 57.3 3077.0 4.732 56.6 3087.0 4.753 55.9 3097.0 4.774 55.2 3107.0 4.795 54.5