| WDS: | STF2138AB | WDS ID/Discoverer |
| P: | 4478.000 | Orbital period (years) |
| a: | 15.247 | Semi-major axis (arcseconds) |
| i: | 131.0 | Inclination (degrees) |
| Ω: | 321.0 | Longitude of ascending node (degrees) |
| T: | 4179.000 | Epoch of periastron passage (year) |
| e: | 0.47 | Eccentricity |
| ω: | 10.0 | Longitude of periastron (degrees) |
| Start-Year: | -214.0 | Year |
| End-Year: | 4264.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF2138AB |
||
| Position: | 171010.51+542939.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17102+5430 | WDS designation |
| Discoverer Code: | STF2138AB | Discover designation and components |
| ADS number: | 10386 | Aitken Double Star catalog |
| HD number: | 155674 | HD catalog number |
| Hipparcos number: | 83988 | Hipparcos catalog number |
| V1: | 8.99 | Magnitude of the primary |
| V2: | 9.36 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 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: | Pko2021a | 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 22.071 132.49 -------------------------- -214.00 7.603 299.36 -204.00 7.545 297.47 -194.00 7.486 295.56 -184.00 7.426 293.61 -174.00 7.367 291.63 -164.00 7.307 289.62 -154.00 7.249 287.58 -144.00 7.192 285.50 -134.00 7.137 283.40 -124.00 7.084 281.25 -114.00 7.034 279.08 -104.00 6.987 276.88 -94.00 6.944 274.65 -84.00 6.905 272.39 -74.00 6.871 270.11 -64.00 6.841 267.81 -54.00 6.816 265.49 -44.00 6.797 263.15 -34.00 6.784 260.80 -24.00 6.777 258.45 -14.00 6.776 256.09 -4.00 6.782 253.74 6.00 6.794 251.39 16.00 6.813 249.05 26.00 6.838 246.73 36.00 6.870 244.42 46.00 6.909 242.14 56.00 6.954 239.89 66.00 7.005 237.67 76.00 7.063 235.48 86.00 7.127 233.33 96.00 7.198 231.22 106.00 7.273 229.15 116.00 7.355 227.13 126.00 7.441 225.15 136.00 7.533 223.22 146.00 7.630 221.34 156.00 7.731 219.50 166.00 7.836 217.72 176.00 7.946 215.98 186.00 8.059 214.29 196.00 8.176 212.64 206.00 8.296 211.05 216.00 8.420 209.50 226.00 8.546 207.99 236.00 8.674 206.53 246.00 8.805 205.12 256.00 8.939 203.74 266.00 9.074 202.41 276.00 9.211 201.11 286.00 9.350 199.86 296.00 9.491 198.64 306.00 9.632 197.45 316.00 9.775 196.30 326.00 9.919 195.19 336.00 10.063 194.10 346.00 10.209 193.05 356.00 10.355 192.03 366.00 10.502 191.03 376.00 10.649 190.06 386.00 10.796 189.12 396.00 10.943 188.21 406.00 11.091 187.31 416.00 11.239 186.45 426.00 11.386 185.60 436.00 11.534 184.78 446.00 11.681 183.97 456.00 11.828 183.19 466.00 11.975 182.43 476.00 12.122 181.68 486.00 12.268 180.95 496.00 12.413 180.24 506.00 12.558 179.55 516.00 12.702 178.87 526.00 12.846 178.21 536.00 12.989 177.56 546.00 13.132 176.92 556.00 13.273 176.30 566.00 13.414 175.69 576.00 13.554 175.10 586.00 13.694 174.52 596.00 13.832 173.94 606.00 13.970 173.38 616.00 14.107 172.84 626.00 14.242 172.30 636.00 14.377 171.77 646.00 14.511 171.25 656.00 14.644 170.74 666.00 14.776 170.24 676.00 14.907 169.75 686.00 15.037 169.27 696.00 15.165 168.79 706.00 15.293 168.32 716.00 15.420 167.87 726.00 15.546 167.41 736.00 15.670 166.97 746.00 15.794 166.53 756.00 15.916 166.10 766.00 16.037 165.68 776.00 16.157 165.26 786.00 16.276 164.85 796.00 16.394 164.44 806.00 16.511 164.04 816.00 16.626 163.65 826.00 16.741 163.26 836.00 16.854 162.88 846.00 16.966 162.50 856.00 17.077 162.12 866.00 17.187 161.76 876.00 17.295 161.39 886.00 17.403 161.03 896.00 17.509 160.68 906.00 17.614 160.33 916.00 17.718 159.98 926.00 17.820 159.64 936.00 17.922 159.30 946.00 18.022 158.96 956.00 18.121 158.63 966.00 18.219 158.30 976.00 18.316 157.98 986.00 18.411 157.66 996.00 18.506 157.34 1006.00 18.599 157.03 1016.00 18.691 156.71 1026.00 18.782 156.41 1036.00 18.871 156.10 1046.00 18.959 155.80 1056.00 19.047 155.50 1066.00 19.133 155.20 1076.00 19.217 154.91 1086.00 19.301 154.62 1096.00 19.384 154.33 1106.00 19.465 154.04 1116.00 19.545 153.76 1126.00 19.624 153.47 1136.00 19.701 153.19 1146.00 19.778 152.92 1156.00 19.853 152.64 1166.00 19.927 152.37 1176.00 20.000 152.09 1186.00 20.072 151.83 1196.00 20.143 151.56 1206.00 20.212 151.29 1216.00 20.280 151.03 1226.00 20.347 150.77 1236.00 20.413 150.50 1246.00 20.478 150.25 1256.00 20.542 149.99 1266.00 20.604 149.73 1276.00 20.665 149.48 1286.00 20.725 149.23 1296.00 20.784 148.97 1306.00 20.842 148.72 1316.00 20.899 148.48 1326.00 20.954 148.23 1336.00 21.009 147.98 1346.00 21.062 147.74 1356.00 21.114 147.50 1366.00 21.165 147.25 1376.00 21.214 147.01 1386.00 21.263 146.77 1396.00 21.310 146.53 1406.00 21.357 146.30 1416.00 21.402 146.06 1426.00 21.446 145.82 1436.00 21.489 145.59 1446.00 21.530 145.35 1456.00 21.571 145.12 1466.00 21.610 144.89 1476.00 21.649 144.66 1486.00 21.686 144.43 1496.00 21.722 144.20 1506.00 21.757 143.97 1516.00 21.791 143.74 1526.00 21.824 143.51 1536.00 21.855 143.29 1546.00 21.886 143.06 1556.00 21.915 142.83 1566.00 21.944 142.61 1576.00 21.971 142.38 1586.00 21.997 142.16 1596.00 22.022 141.94 1606.00 22.046 141.71 1616.00 22.069 141.49 1626.00 22.090 141.27 1636.00 22.111 141.05 1646.00 22.130 140.83 1656.00 22.149 140.61 1666.00 22.166 140.39 1676.00 22.182 140.17 1686.00 22.197 139.95 1696.00 22.211 139.73 1706.00 22.224 139.51 1716.00 22.236 139.29 1726.00 22.247 139.07 1736.00 22.256 138.85 1746.00 22.265 138.63 1756.00 22.273 138.41 1766.00 22.279 138.20 1776.00 22.284 137.98 1786.00 22.289 137.76 1796.00 22.292 137.54 1806.00 22.294 137.32 1816.00 22.295 137.11 1826.00 22.295 136.89 1836.00 22.294 136.67 1846.00 22.292 136.45 1856.00 22.289 136.24 1866.00 22.284 136.02 1876.00 22.279 135.80 1886.00 22.273 135.58 1896.00 22.265 135.36 1906.00 22.257 135.15 1916.00 22.247 134.93 1926.00 22.236 134.71 1936.00 22.225 134.49 1946.00 22.212 134.27 1956.00 22.198 134.05 1966.00 22.183 133.83 1976.00 22.168 133.61 1986.00 22.151 133.39 1996.00 22.133 133.17 2006.00 22.114 132.95 2016.00 22.094 132.73 2026.00 22.072 132.50 2036.00 22.050 132.28 2046.00 22.027 132.06 2056.00 22.003 131.84 2066.00 21.978 131.61 2076.00 21.951 131.39 2086.00 21.924 131.16 2096.00 21.896 130.94 2106.00 21.866 130.71 2116.00 21.836 130.49 2126.00 21.804 130.26 2136.00 21.772 130.03 2146.00 21.738 129.80 2156.00 21.704 129.57 2166.00 21.668 129.34 2176.00 21.632 129.11 2186.00 21.594 128.88 2196.00 21.556 128.65 2206.00 21.516 128.41 2216.00 21.475 128.18 2226.00 21.434 127.94 2236.00 21.391 127.71 2246.00 21.347 127.47 2256.00 21.303 127.23 2266.00 21.257 126.99 2276.00 21.210 126.75 2286.00 21.162 126.51 2296.00 21.114 126.27 2306.00 21.064 126.03 2316.00 21.013 125.78 2326.00 20.961 125.54 2336.00 20.909 125.29 2346.00 20.855 125.04 2356.00 20.800 124.79 2366.00 20.744 124.54 2376.00 20.688 124.29 2386.00 20.630 124.04 2396.00 20.571 123.78 2406.00 20.512 123.52 2416.00 20.451 123.27 2426.00 20.389 123.01 2436.00 20.326 122.75 2446.00 20.263 122.48 2456.00 20.198 122.22 2466.00 20.133 121.95 2476.00 20.066 121.68 2486.00 19.998 121.41 2496.00 19.930 121.14 2506.00 19.860 120.87 2516.00 19.790 120.59 2526.00 19.719 120.32 2536.00 19.646 120.04 2546.00 19.573 119.76 2556.00 19.498 119.47 2566.00 19.423 119.19 2576.00 19.347 118.90 2586.00 19.270 118.61 2596.00 19.192 118.32 2606.00 19.113 118.02 2616.00 19.033 117.72 2626.00 18.952 117.42 2636.00 18.870 117.12 2646.00 18.787 116.82 2656.00 18.703 116.51 2666.00 18.619 116.20 2676.00 18.533 115.88 2686.00 18.447 115.57 2696.00 18.359 115.25 2706.00 18.271 114.92 2716.00 18.182 114.60 2726.00 18.092 114.27 2736.00 18.001 113.94 2746.00 17.909 113.60 2756.00 17.816 113.26 2766.00 17.723 112.92 2776.00 17.628 112.57 2786.00 17.533 112.22 2796.00 17.437 111.87 2806.00 17.340 111.51 2816.00 17.242 111.15 2826.00 17.143 110.78 2836.00 17.044 110.41 2846.00 16.943 110.04 2856.00 16.842 109.66 2866.00 16.740 109.27 2876.00 16.637 108.89 2886.00 16.534 108.49 2896.00 16.429 108.09 2906.00 16.324 107.69 2916.00 16.218 107.28 2926.00 16.112 106.87 2936.00 16.004 106.45 2946.00 15.896 106.02 2956.00 15.787 105.59 2966.00 15.678 105.15 2976.00 15.567 104.71 2986.00 15.456 104.26 2996.00 15.345 103.80 3006.00 15.233 103.34 3016.00 15.120 102.87 3026.00 15.006 102.39 3036.00 14.892 101.91 3046.00 14.777 101.42 3056.00 14.662 100.92 3066.00 14.546 100.41 3076.00 14.430 99.90 3086.00 14.313 99.37 3096.00 14.196 98.84 3106.00 14.078 98.30 3116.00 13.959 97.75 3126.00 13.841 97.19 3136.00 13.722 96.62 3146.00 13.602 96.04 3156.00 13.482 95.45 3166.00 13.362 94.85 3176.00 13.242 94.23 3186.00 13.121 93.61 3196.00 13.000 92.98 3206.00 12.879 92.33 3216.00 12.758 91.67 3226.00 12.637 91.00 3236.00 12.515 90.32 3246.00 12.394 89.62 3256.00 12.272 88.91 3266.00 12.151 88.18 3276.00 12.029 87.44 3286.00 11.908 86.69 3296.00 11.787 85.91 3306.00 11.666 85.13 3316.00 11.546 84.32 3326.00 11.426 83.50 3336.00 11.306 82.67 3346.00 11.187 81.81 3356.00 11.068 80.94 3366.00 10.950 80.04 3376.00 10.833 79.13 3386.00 10.716 78.20 3396.00 10.601 77.25 3406.00 10.486 76.27 3416.00 10.372 75.28 3426.00 10.259 74.26 3436.00 10.147 73.22 3446.00 10.037 72.16 3456.00 9.928 71.07 3466.00 9.820 69.96 3476.00 9.714 68.83 3486.00 9.609 67.67 3496.00 9.507 66.48 3506.00 9.406 65.27 3516.00 9.307 64.04 3526.00 9.210 62.77 3536.00 9.115 61.48 3546.00 9.022 60.17 3556.00 8.932 58.83 3566.00 8.844 57.46 3576.00 8.759 56.06 3586.00 8.677 54.63 3596.00 8.597 53.18 3606.00 8.521 51.71 3616.00 8.447 50.20 3626.00 8.377 48.67 3636.00 8.310 47.12 3646.00 8.246 45.54 3656.00 8.186 43.94 3666.00 8.129 42.31 3676.00 8.076 40.66 3686.00 8.026 38.99 3696.00 7.981 37.30 3706.00 7.939 35.59 3716.00 7.900 33.87 3726.00 7.866 32.13 3736.00 7.836 30.37 3746.00 7.809 28.60 3756.00 7.786 26.82 3766.00 7.767 25.03 3776.00 7.751 23.23 3786.00 7.740 21.43 3796.00 7.732 19.62 3806.00 7.727 17.81 3816.00 7.726 15.99 3826.00 7.727 14.18 3836.00 7.732 12.37 3846.00 7.740 10.56 3856.00 7.751 8.76 3866.00 7.764 6.96 3876.00 7.780 5.17 3886.00 7.797 3.38 3896.00 7.817 1.61 3906.00 7.838 359.84 3916.00 7.860 358.08 3926.00 7.884 356.34 3936.00 7.908 354.60 3946.00 7.933 352.88 3956.00 7.958 351.16 3966.00 7.983 349.46 3976.00 8.008 347.77 3986.00 8.031 346.08 3996.00 8.054 344.41 4006.00 8.076 342.75 4016.00 8.096 341.09 4026.00 8.115 339.44 4036.00 8.131 337.80 4046.00 8.145 336.17 4056.00 8.156 334.54 4066.00 8.164 332.92 4076.00 8.169 331.29 4086.00 8.171 329.67 4096.00 8.170 328.05 4106.00 8.165 326.43 4116.00 8.156 324.80 4126.00 8.143 323.17 4136.00 8.127 321.54 4146.00 8.106 319.90 4156.00 8.082 318.24 4166.00 8.054 316.58 4176.00 8.022 314.91 4186.00 7.986 313.22 4196.00 7.947 311.51 4206.00 7.904 309.79 4216.00 7.858 308.05 4226.00 7.809 306.28 4236.00 7.758 304.50 4246.00 7.704 302.69 4256.00 7.649 300.85
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
|
| Report created: |
2026-06-25 17:34:25 |