| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:10:47 |
| WDS: | HDO294 | WDS ID/Discoverer |
| P: | 4484.500 | Orbital period (years) |
| a: | 4.916 | Semi-major axis (arcseconds) |
| i: | 40.86 | Inclination (degrees) |
| Ω: | 116.65 | Longitude of ascending node (degrees) |
| T: | 1922.730 | Epoch of periastron passage (year) |
| e: | 0.9474 | Eccentricity |
| ω: | 137.62 | Longitude of periastron (degrees) |
| Start-Year: | -217.0 | Year |
| End-Year: | 4267.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 200112.74-383512.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 20012-3835 | WDS designation |
| Discoverer Code: | HDO294 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 189386 | HD catalog number |
| Hipparcos number: | 98556 | Hipparcos catalog number |
| V1: | 8.08 | Magnitude of the primary |
| V2: | 9.11 | Magnitude of the secondary |
| Equinox: | 1900 | Equinox |
| Date: | 1974 | 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 1.440 37.6 ------------------------- -217.0 8.608 82.7 -207.0 8.609 82.8 -197.0 8.609 82.8 -187.0 8.609 82.9 -177.0 8.608 82.9 -167.0 8.608 83.0 -157.0 8.607 83.1 -147.0 8.606 83.1 -137.0 8.605 83.2 -127.0 8.604 83.3 -117.0 8.602 83.3 -107.0 8.600 83.4 -97.0 8.598 83.5 -87.0 8.596 83.5 -77.0 8.593 83.6 -67.0 8.590 83.6 -57.0 8.587 83.7 -47.0 8.584 83.8 -37.0 8.581 83.8 -27.0 8.577 83.9 -17.0 8.573 84.0 -7.0 8.569 84.0 3.0 8.565 84.1 13.0 8.560 84.2 23.0 8.555 84.2 33.0 8.550 84.3 43.0 8.545 84.3 53.0 8.540 84.4 63.0 8.534 84.5 73.0 8.528 84.5 83.0 8.522 84.6 93.0 8.516 84.7 103.0 8.509 84.7 113.0 8.502 84.8 123.0 8.495 84.9 133.0 8.488 84.9 143.0 8.480 85.0 153.0 8.472 85.1 163.0 8.464 85.1 173.0 8.456 85.2 183.0 8.448 85.3 193.0 8.439 85.3 203.0 8.430 85.4 213.0 8.421 85.5 223.0 8.411 85.5 233.0 8.402 85.6 243.0 8.392 85.7 253.0 8.382 85.7 263.0 8.371 85.8 273.0 8.361 85.9 283.0 8.350 85.9 293.0 8.339 86.0 303.0 8.327 86.1 313.0 8.316 86.1 323.0 8.304 86.2 333.0 8.292 86.3 343.0 8.279 86.3 353.0 8.267 86.4 363.0 8.254 86.5 373.0 8.241 86.5 383.0 8.227 86.6 393.0 8.214 86.7 403.0 8.200 86.7 413.0 8.186 86.8 423.0 8.171 86.9 433.0 8.157 87.0 443.0 8.142 87.0 453.0 8.127 87.1 463.0 8.111 87.2 473.0 8.096 87.2 483.0 8.080 87.3 493.0 8.063 87.4 503.0 8.047 87.5 513.0 8.030 87.5 523.0 8.013 87.6 533.0 7.996 87.7 543.0 7.978 87.7 553.0 7.960 87.8 563.0 7.942 87.9 573.0 7.924 88.0 583.0 7.905 88.0 593.0 7.886 88.1 603.0 7.867 88.2 613.0 7.847 88.3 623.0 7.828 88.3 633.0 7.808 88.4 643.0 7.787 88.5 653.0 7.766 88.6 663.0 7.745 88.7 673.0 7.724 88.7 683.0 7.703 88.8 693.0 7.681 88.9 703.0 7.659 89.0 713.0 7.636 89.1 723.0 7.613 89.1 733.0 7.590 89.2 743.0 7.567 89.3 753.0 7.543 89.4 763.0 7.519 89.5 773.0 7.495 89.5 783.0 7.470 89.6 793.0 7.445 89.7 803.0 7.420 89.8 813.0 7.394 89.9 823.0 7.368 90.0 833.0 7.342 90.1 843.0 7.315 90.1 853.0 7.288 90.2 863.0 7.261 90.3 873.0 7.234 90.4 883.0 7.206 90.5 893.0 7.177 90.6 903.0 7.149 90.7 913.0 7.120 90.8 923.0 7.090 90.9 933.0 7.060 91.0 943.0 7.030 91.1 953.0 7.000 91.2 963.0 6.969 91.3 973.0 6.938 91.3 983.0 6.906 91.4 993.0 6.874 91.5 1003.0 6.842 91.6 1013.0 6.809 91.7 1023.0 6.776 91.8 1033.0 6.742 91.9 1043.0 6.708 92.1 1053.0 6.674 92.2 1063.0 6.639 92.3 1073.0 6.604 92.4 1083.0 6.568 92.5 1093.0 6.532 92.6 1103.0 6.496 92.7 1113.0 6.459 92.8 1123.0 6.421 92.9 1133.0 6.383 93.0 1143.0 6.345 93.2 1153.0 6.306 93.3 1163.0 6.267 93.4 1173.0 6.227 93.5 1183.0 6.187 93.6 1193.0 6.146 93.8 1203.0 6.105 93.9 1213.0 6.064 94.0 1223.0 6.021 94.1 1233.0 5.979 94.3 1243.0 5.935 94.4 1253.0 5.892 94.5 1263.0 5.847 94.7 1273.0 5.802 94.8 1283.0 5.757 95.0 1293.0 5.711 95.1 1303.0 5.664 95.2 1313.0 5.617 95.4 1323.0 5.569 95.5 1333.0 5.521 95.7 1343.0 5.472 95.8 1353.0 5.422 96.0 1363.0 5.372 96.2 1373.0 5.321 96.3 1383.0 5.269 96.5 1393.0 5.217 96.7 1403.0 5.164 96.8 1413.0 5.110 97.0 1423.0 5.056 97.2 1433.0 5.000 97.4 1443.0 4.944 97.6 1453.0 4.887 97.8 1463.0 4.830 98.0 1473.0 4.771 98.2 1483.0 4.712 98.4 1493.0 4.652 98.6 1503.0 4.590 98.8 1513.0 4.528 99.0 1523.0 4.465 99.3 1533.0 4.401 99.5 1543.0 4.336 99.8 1553.0 4.270 100.0 1563.0 4.203 100.3 1573.0 4.135 100.5 1583.0 4.065 100.8 1593.0 3.994 101.1 1603.0 3.923 101.4 1613.0 3.849 101.7 1623.0 3.775 102.0 1633.0 3.699 102.4 1643.0 3.621 102.7 1653.0 3.542 103.1 1663.0 3.462 103.5 1673.0 3.380 103.9 1683.0 3.296 104.3 1693.0 3.210 104.7 1703.0 3.122 105.2 1713.0 3.032 105.7 1723.0 2.940 106.2 1733.0 2.846 106.8 1743.0 2.749 107.4 1753.0 2.649 108.0 1763.0 2.547 108.7 1773.0 2.441 109.5 1783.0 2.332 110.3 1793.0 2.220 111.2 1803.0 2.103 112.2 1813.0 1.982 113.4 1823.0 1.855 114.6 1833.0 1.723 116.1 1843.0 1.585 117.8 1853.0 1.438 119.9 1863.0 1.283 122.4 1873.0 1.117 125.7 1883.0 0.937 130.2 1893.0 0.741 136.9 1903.0 0.524 148.9 1913.0 0.298 179.3 1923.0 0.235 264.4 1933.0 0.366 319.4 1943.0 0.493 345.3 1953.0 0.619 0.7 1963.0 0.742 10.9 1973.0 0.863 18.2 1983.0 0.981 23.8 1993.0 1.095 28.1 2003.0 1.206 31.7 2013.0 1.314 34.7 2023.0 1.419 37.2 2033.0 1.521 39.3 2043.0 1.621 41.2 2053.0 1.718 42.9 2063.0 1.813 44.4 2073.0 1.906 45.8 2083.0 1.997 47.0 2093.0 2.086 48.2 2103.0 2.173 49.2 2113.0 2.258 50.2 2123.0 2.342 51.0 2133.0 2.424 51.9 2143.0 2.505 52.6 2153.0 2.584 53.4 2163.0 2.662 54.1 2173.0 2.739 54.7 2183.0 2.814 55.3 2193.0 2.889 55.9 2203.0 2.962 56.4 2213.0 3.034 57.0 2223.0 3.105 57.5 2233.0 3.175 57.9 2243.0 3.244 58.4 2253.0 3.312 58.8 2263.0 3.379 59.2 2273.0 3.445 59.6 2283.0 3.510 60.0 2293.0 3.575 60.4 2303.0 3.638 60.8 2313.0 3.701 61.1 2323.0 3.763 61.5 2333.0 3.824 61.8 2343.0 3.885 62.1 2353.0 3.944 62.4 2363.0 4.004 62.7 2373.0 4.062 63.0 2383.0 4.120 63.3 2393.0 4.177 63.5 2403.0 4.233 63.8 2413.0 4.289 64.1 2423.0 4.344 64.3 2433.0 4.398 64.6 2443.0 4.452 64.8 2453.0 4.505 65.0 2463.0 4.558 65.3 2473.0 4.610 65.5 2483.0 4.662 65.7 2493.0 4.713 65.9 2503.0 4.763 66.1 2513.0 4.813 66.3 2523.0 4.863 66.5 2533.0 4.912 66.7 2543.0 4.960 66.9 2553.0 5.008 67.1 2563.0 5.056 67.3 2573.0 5.103 67.5 2583.0 5.149 67.7 2593.0 5.195 67.8 2603.0 5.241 68.0 2613.0 5.286 68.2 2623.0 5.331 68.3 2633.0 5.375 68.5 2643.0 5.419 68.7 2653.0 5.462 68.8 2663.0 5.505 69.0 2673.0 5.547 69.1 2683.0 5.589 69.3 2693.0 5.631 69.4 2703.0 5.672 69.6 2713.0 5.713 69.7 2723.0 5.754 69.9 2733.0 5.794 70.0 2743.0 5.834 70.2 2753.0 5.873 70.3 2763.0 5.912 70.4 2773.0 5.950 70.6 2783.0 5.989 70.7 2793.0 6.026 70.8 2803.0 6.064 71.0 2813.0 6.101 71.1 2823.0 6.138 71.2 2833.0 6.174 71.3 2843.0 6.210 71.5 2853.0 6.246 71.6 2863.0 6.281 71.7 2873.0 6.316 71.8 2883.0 6.351 71.9 2893.0 6.385 72.0 2903.0 6.419 72.2 2913.0 6.453 72.3 2923.0 6.487 72.4 2933.0 6.520 72.5 2943.0 6.552 72.6 2953.0 6.585 72.7 2963.0 6.617 72.8 2973.0 6.649 72.9 2983.0 6.680 73.0 2993.0 6.711 73.1 3003.0 6.742 73.2 3013.0 6.773 73.3 3023.0 6.803 73.4 3033.0 6.833 73.5 3043.0 6.862 73.6 3053.0 6.892 73.7 3063.0 6.921 73.8 3073.0 6.950 73.9 3083.0 6.978 74.0 3093.0 7.006 74.1 3103.0 7.034 74.2 3113.0 7.062 74.3 3123.0 7.089 74.4 3133.0 7.116 74.5 3143.0 7.143 74.6 3153.0 7.170 74.7 3163.0 7.196 74.8 3173.0 7.222 74.9 3183.0 7.247 75.0 3193.0 7.273 75.1 3203.0 7.298 75.1 3213.0 7.323 75.2 3223.0 7.347 75.3 3233.0 7.372 75.4 3243.0 7.396 75.5 3253.0 7.420 75.6 3263.0 7.443 75.7 3273.0 7.466 75.7 3283.0 7.489 75.8 3293.0 7.512 75.9 3303.0 7.535 76.0 3313.0 7.557 76.1 3323.0 7.579 76.2 3333.0 7.601 76.2 3343.0 7.622 76.3 3353.0 7.643 76.4 3363.0 7.664 76.5 3373.0 7.685 76.6 3383.0 7.706 76.6 3393.0 7.726 76.7 3403.0 7.746 76.8 3413.0 7.766 76.9 3423.0 7.785 77.0 3433.0 7.804 77.0 3443.0 7.823 77.1 3453.0 7.842 77.2 3463.0 7.861 77.3 3473.0 7.879 77.3 3483.0 7.897 77.4 3493.0 7.915 77.5 3503.0 7.932 77.6 3513.0 7.950 77.6 3523.0 7.967 77.7 3533.0 7.984 77.8 3543.0 8.000 77.9 3553.0 8.017 77.9 3563.0 8.033 78.0 3573.0 8.049 78.1 3583.0 8.065 78.2 3593.0 8.080 78.2 3603.0 8.095 78.3 3613.0 8.110 78.4 3623.0 8.125 78.4 3633.0 8.140 78.5 3643.0 8.154 78.6 3653.0 8.168 78.7 3663.0 8.182 78.7 3673.0 8.196 78.8 3683.0 8.209 78.9 3693.0 8.222 78.9 3703.0 8.235 79.0 3713.0 8.248 79.1 3723.0 8.260 79.1 3733.0 8.273 79.2 3743.0 8.285 79.3 3753.0 8.296 79.3 3763.0 8.308 79.4 3773.0 8.319 79.5 3783.0 8.331 79.5 3793.0 8.342 79.6 3803.0 8.352 79.7 3813.0 8.363 79.8 3823.0 8.373 79.8 3833.0 8.383 79.9 3843.0 8.393 80.0 3853.0 8.403 80.0 3863.0 8.412 80.1 3873.0 8.421 80.2 3883.0 8.430 80.2 3893.0 8.439 80.3 3903.0 8.447 80.3 3913.0 8.456 80.4 3923.0 8.464 80.5 3933.0 8.471 80.5 3943.0 8.479 80.6 3953.0 8.486 80.7 3963.0 8.494 80.7 3973.0 8.501 80.8 3983.0 8.507 80.9 3993.0 8.514 80.9 4003.0 8.520 81.0 4013.0 8.526 81.1 4023.0 8.532 81.1 4033.0 8.538 81.2 4043.0 8.543 81.3 4053.0 8.549 81.3 4063.0 8.554 81.4 4073.0 8.558 81.5 4083.0 8.563 81.5 4093.0 8.567 81.6 4103.0 8.572 81.6 4113.0 8.575 81.7 4123.0 8.579 81.8 4133.0 8.583 81.8 4143.0 8.586 81.9 4153.0 8.589 82.0 4163.0 8.592 82.0 4173.0 8.594 82.1 4183.0 8.597 82.2 4193.0 8.599 82.2 4203.0 8.601 82.3 4213.0 8.603 82.3 4223.0 8.604 82.4 4233.0 8.606 82.5 4243.0 8.607 82.5 4253.0 8.608 82.6 4263.0 8.608 82.7