| 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: | 936.6038000000001 | Year |
| End-Year: | 3113.3962 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF2987 |
||
| 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 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Izm2019 | 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 4.190 149.07 -------------------------- 936.60 4.808 54.12 946.60 4.828 53.46 956.60 4.849 52.80 966.60 4.869 52.15 976.60 4.889 51.51 986.60 4.909 50.87 996.60 4.929 50.24 1006.60 4.949 49.61 1016.60 4.969 48.99 1026.60 4.988 48.37 1036.60 5.007 47.76 1046.60 5.025 47.15 1056.60 5.044 46.54 1066.60 5.062 45.94 1076.60 5.080 45.35 1086.60 5.097 44.76 1096.60 5.114 44.17 1106.60 5.131 43.58 1116.60 5.147 43.00 1126.60 5.162 42.43 1136.60 5.178 41.85 1146.60 5.192 41.28 1156.60 5.206 40.72 1166.60 5.220 40.15 1176.60 5.232 39.59 1186.60 5.245 39.03 1196.60 5.256 38.48 1206.60 5.267 37.93 1216.60 5.277 37.37 1226.60 5.286 36.83 1236.60 5.294 36.28 1246.60 5.302 35.73 1256.60 5.309 35.19 1266.60 5.314 34.65 1276.60 5.319 34.10 1286.60 5.322 33.56 1296.60 5.325 33.02 1306.60 5.326 32.48 1316.60 5.326 31.94 1326.60 5.325 31.40 1336.60 5.322 30.86 1346.60 5.318 30.32 1356.60 5.312 29.78 1366.60 5.305 29.23 1376.60 5.296 28.69 1386.60 5.286 28.14 1396.60 5.273 27.59 1406.60 5.259 27.04 1416.60 5.242 26.48 1426.60 5.224 25.92 1436.60 5.202 25.36 1446.60 5.179 24.79 1456.60 5.153 24.22 1466.60 5.124 23.64 1476.60 5.092 23.05 1486.60 5.056 22.46 1496.60 5.018 21.85 1506.60 4.975 21.24 1516.60 4.929 20.61 1526.60 4.878 19.98 1536.60 4.823 19.33 1546.60 4.762 18.66 1556.60 4.696 17.97 1566.60 4.624 17.27 1576.60 4.545 16.54 1586.60 4.458 15.78 1596.60 4.363 15.00 1606.60 4.259 14.17 1616.60 4.144 13.31 1626.60 4.016 12.39 1636.60 3.875 11.40 1646.60 3.716 10.34 1656.60 3.538 9.17 1666.60 3.336 7.88 1676.60 3.105 6.40 1686.60 2.836 4.67 1696.60 2.518 2.53 1706.60 2.135 359.70 1716.60 1.661 355.42 1726.60 1.068 346.91 1736.60 0.410 310.81 1746.60 0.638 207.99 1756.60 1.288 189.66 1766.60 1.803 183.16 1776.60 2.196 179.33 1786.60 2.504 176.56 1796.60 2.752 174.34 1806.60 2.956 172.46 1816.60 3.127 170.81 1826.60 3.272 169.31 1836.60 3.396 167.93 1846.60 3.503 166.65 1856.60 3.597 165.43 1866.60 3.679 164.28 1876.60 3.751 163.17 1886.60 3.814 162.09 1896.60 3.869 161.06 1906.60 3.918 160.05 1916.60 3.962 159.06 1926.60 4.000 158.09 1936.60 4.033 157.14 1946.60 4.062 156.21 1956.60 4.088 155.29 1966.60 4.110 154.38 1976.60 4.130 153.47 1986.60 4.146 152.58 1996.60 4.160 151.69 2006.60 4.172 150.81 2016.60 4.182 149.93 2026.60 4.190 149.06 2036.60 4.196 148.18 2046.60 4.200 147.32 2056.60 4.203 146.45 2066.60 4.205 145.58 2076.60 4.206 144.72 2086.60 4.205 143.85 2096.60 4.204 142.98 2106.60 4.202 142.12 2116.60 4.199 141.25 2126.60 4.195 140.38 2136.60 4.190 139.51 2146.60 4.185 138.63 2156.60 4.180 137.76 2166.60 4.174 136.88 2176.60 4.167 136.00 2186.60 4.161 135.11 2196.60 4.154 134.23 2206.60 4.146 133.34 2216.60 4.139 132.45 2226.60 4.131 131.55 2236.60 4.123 130.65 2246.60 4.116 129.75 2256.60 4.108 128.84 2266.60 4.100 127.93 2276.60 4.092 127.02 2286.60 4.085 126.10 2296.60 4.077 125.18 2306.60 4.070 124.26 2316.60 4.062 123.33 2326.60 4.055 122.40 2336.60 4.048 121.47 2346.60 4.042 120.53 2356.60 4.035 119.59 2366.60 4.029 118.65 2376.60 4.024 117.71 2386.60 4.018 116.76 2396.60 4.013 115.81 2406.60 4.009 114.86 2416.60 4.004 113.90 2426.60 4.000 112.95 2436.60 3.997 111.99 2446.60 3.994 111.03 2456.60 3.991 110.07 2466.60 3.989 109.11 2476.60 3.988 108.14 2486.60 3.986 107.18 2496.60 3.986 106.22 2506.60 3.985 105.25 2516.60 3.986 104.29 2526.60 3.987 103.32 2536.60 3.988 102.36 2546.60 3.990 101.40 2556.60 3.992 100.43 2566.60 3.995 99.47 2576.60 3.999 98.51 2586.60 4.003 97.56 2596.60 4.007 96.60 2606.60 4.012 95.65 2616.60 4.018 94.70 2626.60 4.024 93.75 2636.60 4.031 92.81 2646.60 4.038 91.87 2656.60 4.046 90.93 2666.60 4.054 90.00 2676.60 4.063 89.07 2686.60 4.072 88.14 2696.60 4.082 87.22 2706.60 4.093 86.30 2716.60 4.103 85.39 2726.60 4.115 84.48 2736.60 4.127 83.58 2746.60 4.139 82.68 2756.60 4.152 81.79 2766.60 4.165 80.90 2776.60 4.179 80.02 2786.60 4.193 79.15 2796.60 4.207 78.28 2806.60 4.222 77.42 2816.60 4.237 76.56 2826.60 4.253 75.71 2836.60 4.269 74.87 2846.60 4.286 74.03 2856.60 4.302 73.20 2866.60 4.320 72.38 2876.60 4.337 71.56 2886.60 4.355 70.75 2896.60 4.373 69.94 2906.60 4.391 69.15 2916.60 4.410 68.35 2926.60 4.429 67.57 2936.60 4.448 66.79 2946.60 4.467 66.02 2956.60 4.487 65.26 2966.60 4.506 64.50 2976.60 4.526 63.75 2986.60 4.546 63.00 2996.60 4.567 62.27 3006.60 4.587 61.54 3016.60 4.607 60.81 3026.60 4.628 60.09 3036.60 4.649 59.38 3046.60 4.669 58.67 3056.60 4.690 57.97 3066.60 4.711 57.28 3076.60 4.732 56.59 3086.60 4.752 55.91 3096.60 4.773 55.24 3106.60 4.794 54.57
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:48:33 |