| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:33:45 |
| WDS: | STF227 | WDS ID/Discoverer |
| P: | 5172.500 | Orbital period (years) |
| a: | 7.037 | Semi-major axis (arcseconds) |
| i: | 110.3 | Inclination (degrees) |
| Ω: | 158.8 | Longitude of ascending node (degrees) |
| T: | 4960.300 | Epoch of periastron passage (year) |
| e: | 0.63 | Eccentricity |
| ω: | 277.5 | Longitude of periastron (degrees) |
| Start-Year: | -561.0 | Year |
| End-Year: | 4611.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 021222.28+301811.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02124+3018 | WDS designation |
| Discoverer Code: | STF227 | Discover designation and components |
| ADS number: | 1697 | Aitken Double Star catalog |
| HD number: | 13480 | HD catalog number |
| Hipparcos number: | 10280 | Hipparcos catalog number |
| V1: | 5.26 | Magnitude of the primary |
| V2: | 6.67 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 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 3.928 67.8 ------------------------- -561.0 4.366 337.2 -551.0 4.289 336.7 -541.0 4.208 336.2 -531.0 4.125 335.6 -521.0 4.040 335.1 -511.0 3.952 334.5 -501.0 3.861 333.9 -491.0 3.768 333.2 -481.0 3.672 332.6 -471.0 3.573 331.9 -461.0 3.471 331.1 -451.0 3.366 330.3 -441.0 3.258 329.5 -431.0 3.148 328.6 -421.0 3.034 327.6 -411.0 2.917 326.5 -401.0 2.798 325.4 -391.0 2.676 324.2 -381.0 2.551 322.8 -371.0 2.423 321.3 -361.0 2.293 319.6 -351.0 2.162 317.8 -341.0 2.029 315.6 -331.0 1.895 313.2 -321.0 1.761 310.4 -311.0 1.628 307.2 -301.0 1.497 303.4 -291.0 1.371 298.9 -281.0 1.252 293.5 -271.0 1.143 287.0 -261.0 1.048 279.2 -251.0 0.974 270.0 -241.0 0.925 259.7 -231.0 0.906 248.5 -221.0 0.920 237.3 -211.0 0.965 226.8 -201.0 1.036 217.5 -191.0 1.127 209.5 -181.0 1.234 202.8 -171.0 1.352 197.3 -161.0 1.476 192.6 -151.0 1.604 188.7 -141.0 1.735 185.3 -131.0 1.867 182.5 -121.0 1.997 180.0 -111.0 2.127 177.8 -101.0 2.254 175.9 -91.0 2.379 174.1 -81.0 2.501 172.6 -71.0 2.619 171.1 -61.0 2.735 169.8 -51.0 2.846 168.7 -41.0 2.954 167.6 -31.0 3.059 166.5 -21.0 3.160 165.6 -11.0 3.257 164.7 -1.0 3.350 163.8 9.0 3.441 163.0 19.0 3.527 162.2 29.0 3.610 161.5 39.0 3.690 160.8 49.0 3.767 160.1 59.0 3.841 159.5 69.0 3.912 158.9 79.0 3.979 158.3 89.0 4.044 157.7 99.0 4.106 157.2 109.0 4.166 156.6 119.0 4.223 156.1 129.0 4.277 155.6 139.0 4.329 155.1 149.0 4.379 154.6 159.0 4.427 154.1 169.0 4.472 153.6 179.0 4.516 153.2 189.0 4.557 152.7 199.0 4.597 152.3 209.0 4.634 151.8 219.0 4.670 151.4 229.0 4.704 151.0 239.0 4.737 150.6 249.0 4.768 150.2 259.0 4.797 149.8 269.0 4.825 149.4 279.0 4.851 149.0 289.0 4.876 148.6 299.0 4.899 148.2 309.0 4.922 147.8 319.0 4.943 147.4 329.0 4.962 147.0 339.0 4.981 146.7 349.0 4.998 146.3 359.0 5.015 145.9 369.0 5.030 145.5 379.0 5.044 145.2 389.0 5.057 144.8 399.0 5.069 144.5 409.0 5.081 144.1 419.0 5.091 143.7 429.0 5.100 143.4 439.0 5.109 143.0 449.0 5.117 142.7 459.0 5.124 142.3 469.0 5.130 142.0 479.0 5.135 141.6 489.0 5.140 141.3 499.0 5.144 140.9 509.0 5.147 140.5 519.0 5.150 140.2 529.0 5.152 139.8 539.0 5.153 139.5 549.0 5.154 139.2 559.0 5.154 138.8 569.0 5.153 138.5 579.0 5.152 138.1 589.0 5.151 137.8 599.0 5.149 137.4 609.0 5.146 137.1 619.0 5.143 136.7 629.0 5.140 136.3 639.0 5.136 136.0 649.0 5.131 135.6 659.0 5.126 135.3 669.0 5.121 134.9 679.0 5.115 134.6 689.0 5.109 134.2 699.0 5.102 133.9 709.0 5.096 133.5 719.0 5.088 133.2 729.0 5.081 132.8 739.0 5.073 132.4 749.0 5.065 132.1 759.0 5.056 131.7 769.0 5.047 131.3 779.0 5.038 131.0 789.0 5.029 130.6 799.0 5.019 130.2 809.0 5.009 129.9 819.0 4.999 129.5 829.0 4.988 129.1 839.0 4.978 128.8 849.0 4.967 128.4 859.0 4.956 128.0 869.0 4.944 127.6 879.0 4.933 127.3 889.0 4.921 126.9 899.0 4.909 126.5 909.0 4.897 126.1 919.0 4.885 125.7 929.0 4.873 125.3 939.0 4.860 124.9 949.0 4.848 124.5 959.0 4.835 124.1 969.0 4.822 123.7 979.0 4.809 123.3 989.0 4.796 122.9 999.0 4.783 122.5 1009.0 4.769 122.1 1019.0 4.756 121.7 1029.0 4.742 121.3 1039.0 4.729 120.9 1049.0 4.715 120.5 1059.0 4.701 120.1 1069.0 4.688 119.6 1079.0 4.674 119.2 1089.0 4.660 118.8 1099.0 4.646 118.4 1109.0 4.632 117.9 1119.0 4.618 117.5 1129.0 4.604 117.1 1139.0 4.590 116.6 1149.0 4.576 116.2 1159.0 4.562 115.7 1169.0 4.549 115.3 1179.0 4.535 114.8 1189.0 4.521 114.4 1199.0 4.507 113.9 1209.0 4.493 113.5 1219.0 4.479 113.0 1229.0 4.465 112.5 1239.0 4.452 112.1 1249.0 4.438 111.6 1259.0 4.425 111.1 1269.0 4.411 110.6 1279.0 4.398 110.2 1289.0 4.384 109.7 1299.0 4.371 109.2 1309.0 4.358 108.7 1319.0 4.345 108.2 1329.0 4.332 107.7 1339.0 4.319 107.2 1349.0 4.306 106.7 1359.0 4.293 106.2 1369.0 4.281 105.7 1379.0 4.268 105.2 1389.0 4.256 104.7 1399.0 4.244 104.2 1409.0 4.232 103.7 1419.0 4.220 103.2 1429.0 4.208 102.6 1439.0 4.197 102.1 1449.0 4.186 101.6 1459.0 4.174 101.0 1469.0 4.163 100.5 1479.0 4.152 100.0 1489.0 4.142 99.4 1499.0 4.131 98.9 1509.0 4.121 98.3 1519.0 4.111 97.8 1529.0 4.101 97.3 1539.0 4.091 96.7 1549.0 4.082 96.1 1559.0 4.072 95.6 1569.0 4.063 95.0 1579.0 4.054 94.5 1589.0 4.046 93.9 1599.0 4.037 93.3 1609.0 4.029 92.8 1619.0 4.021 92.2 1629.0 4.014 91.6 1639.0 4.006 91.0 1649.0 3.999 90.4 1659.0 3.992 89.9 1669.0 3.985 89.3 1679.0 3.979 88.7 1689.0 3.972 88.1 1699.0 3.966 87.5 1709.0 3.961 86.9 1719.0 3.955 86.3 1729.0 3.950 85.7 1739.0 3.945 85.1 1749.0 3.941 84.5 1759.0 3.936 83.9 1769.0 3.932 83.3 1779.0 3.929 82.7 1789.0 3.925 82.1 1799.0 3.922 81.5 1809.0 3.919 80.9 1819.0 3.916 80.3 1829.0 3.914 79.7 1839.0 3.912 79.1 1849.0 3.910 78.5 1859.0 3.909 77.9 1869.0 3.908 77.3 1879.0 3.907 76.7 1889.0 3.906 76.1 1899.0 3.906 75.5 1909.0 3.906 74.9 1919.0 3.906 74.3 1929.0 3.907 73.6 1939.0 3.908 73.0 1949.0 3.909 72.4 1959.0 3.910 71.8 1969.0 3.912 71.2 1979.0 3.914 70.6 1989.0 3.917 70.0 1999.0 3.919 69.4 2009.0 3.922 68.8 2019.0 3.926 68.2 2029.0 3.929 67.6 2039.0 3.933 67.0 2049.0 3.937 66.4 2059.0 3.942 65.8 2069.0 3.946 65.2 2079.0 3.952 64.6 2089.0 3.957 64.0 2099.0 3.962 63.4 2109.0 3.968 62.8 2119.0 3.975 62.2 2129.0 3.981 61.6 2139.0 3.988 61.1 2149.0 3.995 60.5 2159.0 4.002 59.9 2169.0 4.010 59.3 2179.0 4.017 58.7 2189.0 4.026 58.2 2199.0 4.034 57.6 2209.0 4.043 57.0 2219.0 4.051 56.5 2229.0 4.061 55.9 2239.0 4.070 55.3 2249.0 4.080 54.8 2259.0 4.089 54.2 2269.0 4.100 53.7 2279.0 4.110 53.1 2289.0 4.121 52.6 2299.0 4.131 52.0 2309.0 4.142 51.5 2319.0 4.154 50.9 2329.0 4.165 50.4 2339.0 4.177 49.9 2349.0 4.189 49.3 2359.0 4.201 48.8 2369.0 4.214 48.3 2379.0 4.226 47.8 2389.0 4.239 47.2 2399.0 4.252 46.7 2409.0 4.265 46.2 2419.0 4.279 45.7 2429.0 4.292 45.2 2439.0 4.306 44.7 2449.0 4.320 44.2 2459.0 4.334 43.7 2469.0 4.348 43.2 2479.0 4.363 42.7 2489.0 4.377 42.2 2499.0 4.392 41.8 2509.0 4.407 41.3 2519.0 4.422 40.8 2529.0 4.438 40.3 2539.0 4.453 39.9 2549.0 4.469 39.4 2559.0 4.484 38.9 2569.0 4.500 38.5 2579.0 4.516 38.0 2589.0 4.532 37.6 2599.0 4.548 37.1 2609.0 4.565 36.7 2619.0 4.581 36.2 2629.0 4.598 35.8 2639.0 4.615 35.3 2649.0 4.631 34.9 2659.0 4.648 34.5 2669.0 4.665 34.0 2679.0 4.682 33.6 2689.0 4.700 33.2 2699.0 4.717 32.8 2709.0 4.734 32.4 2719.0 4.752 31.9 2729.0 4.769 31.5 2739.0 4.787 31.1 2749.0 4.804 30.7 2759.0 4.822 30.3 2769.0 4.840 29.9 2779.0 4.858 29.5 2789.0 4.876 29.1 2799.0 4.894 28.7 2809.0 4.912 28.4 2819.0 4.930 28.0 2829.0 4.948 27.6 2839.0 4.966 27.2 2849.0 4.984 26.8 2859.0 5.002 26.5 2869.0 5.020 26.1 2879.0 5.039 25.7 2889.0 5.057 25.4 2899.0 5.075 25.0 2909.0 5.093 24.7 2919.0 5.112 24.3 2929.0 5.130 23.9 2939.0 5.148 23.6 2949.0 5.167 23.2 2959.0 5.185 22.9 2969.0 5.203 22.5 2979.0 5.221 22.2 2989.0 5.240 21.9 2999.0 5.258 21.5 3009.0 5.276 21.2 3019.0 5.294 20.9 3029.0 5.312 20.5 3039.0 5.330 20.2 3049.0 5.349 19.9 3059.0 5.367 19.6 3069.0 5.385 19.2 3079.0 5.402 18.9 3089.0 5.420 18.6 3099.0 5.438 18.3 3109.0 5.456 18.0 3119.0 5.474 17.7 3129.0 5.491 17.3 3139.0 5.509 17.0 3149.0 5.526 16.7 3159.0 5.544 16.4 3169.0 5.561 16.1 3179.0 5.578 15.8 3189.0 5.596 15.5 3199.0 5.613 15.2 3209.0 5.630 14.9 3219.0 5.647 14.7 3229.0 5.663 14.4 3239.0 5.680 14.1 3249.0 5.697 13.8 3259.0 5.713 13.5 3269.0 5.730 13.2 3279.0 5.746 12.9 3289.0 5.762 12.7 3299.0 5.778 12.4 3309.0 5.794 12.1 3319.0 5.810 11.8 3329.0 5.825 11.6 3339.0 5.841 11.3 3349.0 5.856 11.0 3359.0 5.871 10.7 3369.0 5.886 10.5 3379.0 5.901 10.2 3389.0 5.916 9.9 3399.0 5.931 9.7 3409.0 5.945 9.4 3419.0 5.959 9.1 3429.0 5.973 8.9 3439.0 5.987 8.6 3449.0 6.001 8.4 3459.0 6.014 8.1 3469.0 6.028 7.9 3479.0 6.041 7.6 3489.0 6.054 7.3 3499.0 6.066 7.1 3509.0 6.079 6.8 3519.0 6.091 6.6 3529.0 6.103 6.3 3539.0 6.115 6.1 3549.0 6.127 5.8 3559.0 6.138 5.6 3569.0 6.149 5.3 3579.0 6.160 5.1 3589.0 6.171 4.9 3599.0 6.181 4.6 3609.0 6.191 4.4 3619.0 6.201 4.1 3629.0 6.211 3.9 3639.0 6.220 3.6 3649.0 6.229 3.4 3659.0 6.238 3.2 3669.0 6.247 2.9 3679.0 6.255 2.7 3689.0 6.263 2.5 3699.0 6.271 2.2 3709.0 6.278 2.0 3719.0 6.285 1.8 3729.0 6.292 1.5 3739.0 6.298 1.3 3749.0 6.304 1.0 3759.0 6.310 0.8 3769.0 6.315 0.6 3779.0 6.320 0.3 3789.0 6.325 0.1 3799.0 6.329 359.9 3809.0 6.333 359.7 3819.0 6.337 359.4 3829.0 6.340 359.2 3839.0 6.343 359.0 3849.0 6.345 358.7 3859.0 6.347 358.5 3869.0 6.349 358.3 3879.0 6.350 358.0 3889.0 6.351 357.8 3899.0 6.351 357.6 3909.0 6.351 357.3 3919.0 6.350 357.1 3929.0 6.349 356.9 3939.0 6.348 356.7 3949.0 6.346 356.4 3959.0 6.343 356.2 3969.0 6.340 356.0 3979.0 6.337 355.7 3989.0 6.333 355.5 3999.0 6.328 355.3 4009.0 6.323 355.0 4019.0 6.317 354.8 4029.0 6.311 354.6 4039.0 6.305 354.3 4049.0 6.297 354.1 4059.0 6.289 353.9 4069.0 6.281 353.6 4079.0 6.272 353.4 4089.0 6.262 353.2 4099.0 6.251 352.9 4109.0 6.240 352.7 4119.0 6.228 352.4 4129.0 6.216 352.2 4139.0 6.203 352.0 4149.0 6.189 351.7 4159.0 6.174 351.5 4169.0 6.159 351.2 4179.0 6.143 351.0 4189.0 6.126 350.7 4199.0 6.108 350.5 4209.0 6.090 350.2 4219.0 6.070 350.0 4229.0 6.050 349.7 4239.0 6.029 349.5 4249.0 6.007 349.2 4259.0 5.984 349.0 4269.0 5.960 348.7 4279.0 5.936 348.5 4289.0 5.910 348.2 4299.0 5.883 347.9 4309.0 5.856 347.7 4319.0 5.827 347.4 4329.0 5.797 347.1 4339.0 5.766 346.8 4349.0 5.734 346.5 4359.0 5.700 346.3 4369.0 5.666 346.0 4379.0 5.630 345.7 4389.0 5.593 345.4 4399.0 5.555 345.1 4409.0 5.516 344.8 4419.0 5.475 344.5 4429.0 5.433 344.2 4439.0 5.389 343.8 4449.0 5.344 343.5 4459.0 5.297 343.2 4469.0 5.249 342.9 4479.0 5.199 342.5 4489.0 5.148 342.2 4499.0 5.095 341.8 4509.0 5.040 341.5 4519.0 4.983 341.1 4529.0 4.925 340.7 4539.0 4.865 340.3 4549.0 4.802 339.9 4559.0 4.738 339.5 4569.0 4.672 339.1 4579.0 4.604 338.7 4589.0 4.533 338.2 4599.0 4.461 337.8 4609.0 4.386 337.3