Occultations of stars by asteroids in May 2025 The following list contains the circumstances of occultations of the Tycho-2 and UCAC4 catalog stars by the numbered asteroids for May 2025. Only those phenomena are selected that are observable in Russia and nearest countries and have a duration larger than 0.5 sec, a drop in magnitude larger than 0.2 m, and an altitude larger than 20 degrees. The left half of a page shows the three-line general information, namely: the date; the number (if any) and name or provisional designation of the asteroid, its apparent visual magnitude and approximate diameter in km, the drop in magnitude and maximum duration in seconds; the catalog number of the star, its visual magnitude and J2000.0 right ascension and declination. The right half of a page describes the line of occultation in terms of longitude and latitude values for a set of moments along with the values of azimuth and altitude of a phenomenon at that place. All angular values are expressed in degrees. The same data are provided also for some NEAs - near Earth asteroids. The orbital elements were used from the MPCORB catalog of Minor Planet Center (http://www.minorplanetcenter.net/iau/MPCORB.html) for April 19, 2025. Of course, the orbits of many asteroids are known with insufficient accuracy, so in reality the phenomena may happen in a wider region.Some phenomena are accompanied by the numbers of observatories where observations are probable. h m s ° ° ° ° 2025 May 2 19 59.9 21.3 44.7 82 43 1758 Naantali; 16.9; 23km; 6.1; 1.2s 20 00.2 25.5 42.6 87 41 U4 573-044811; 10.9; 83704.5891;+243344.558 20 00.5 29.8 40.3 92 37 2025 May 4 16 04.4 77.6 40.6 328 22 2001 FN194; 23.7; 98km;11.3; 4.0s 16 04.5 74.6 42.3 325 20 U4 350-070197; 12.5;141159.0489;-201102.999 2025 May 4 17 38.9 49.0 41.3 55 56 282 Clorinde; 15.5; 39km; 3.2; 3.0s 17 39.1 50.8 40.7 58 55 U4 540-049821; 12.4; 94758.2361;+175732.928 17 39.3 52.5 40.1 61 54 2025 May 5 16 13.3 130.7 43.8 41 20 990 Yerkes; 16.7; 21km; 6.0; 1.6s 16 14.7 116.9 47.3 27 22 U4 369-064045; 10.7;131616.1371;-161300.408 16 16.1 103.5 53.2 13 20 2025 May 5 17 59.6 72.3 53.7 59 38 758 Mancunia; 14.1; 89km; 5.2; 15.9s 18 02.0 75.3 46.8 67 40 U4 526-052386; 8.9;103733.2879;+150855.595 18 04.4 78.9 40.1 75 40 2025 May 5 18 44.6 39.5 46.0 109 24 1237 Genevieve; 16.6; 40km; 3.8; 1.1s 18 44.7 43.6 43.4 113 20 U4 601-034250; 12.8; 63304.7422;+300724.311 2025 May 5 20 10.3 41.0 40.4 339 33 1082 Pirola; 14.9; 43km; 3.0; 3.2s 20 10.9 33.9 43.5 333 28 U4 379-068478; 12.0;145927.9822;-141451.488 20 11.5 24.9 47.3 325 21 2025 May 6 23 46.7 39.0 43.6 297 20 681 Gorgo; 16.1; 20km; 3.5; 1.1s 23 46.8 40.6 44.1 298 21 U4 430-116203; 12.7;211501.1349;- 40103.302 23 46.9 42.2 44.7 300 22 2025 May 8 19 32.1 38.5 40.1 1 51 853 Nansenia; 14.4; 28km; 2.4; 5.1s 19 33.4 34.4 43.4 354 47 U4 455-054016; 12.1;131229.1112;+ 04905.377 19 34.7 29.7 46.8 348 43 2025 May 9 14 45.2 93.3 40.8 39 61 1017 Jacqueline; 15.5; 40km; 3.5; 4.8s 14 45.3 93.6 40.5 40 61 U4 536-052046; 12.0;105118.7384;+170113.482 14 45.4 94.0 40.1 41 61 2025 May 10 19 19.5 71.5 40.0 325 40 4152 Weber; 17.0; 20km; 6.6; 1.6s 19 20.3 62.4 45.3 318 31 U4 429-066102; 10.4;170221.4638;- 42039.566 19 21.1 48.2 51.4 306 20 2025 May 10 21 20.3 80.7 40.7 301 26 26482 2000 AM203; 18.1; 22km; 7.3; 1.1s 21 20.4 81.4 41.6 302 26 U4 431-114895; 10.7;212516.5171;- 34851.642 2025 May 11 15 07.5 150.0 44.8 345 29 4436 Ortizmoreno; 16.6; 31km; 4.7; 2.8s 15 09.1 136.5 43.0 331 27 U4 375-083636; 11.9;171839.2605;-150846.752 15 10.7 121.1 42.7 316 20 2025 May 13 14 25.1 106.5 40.5 330 23 3978 Klepesta; 15.9; 29km; 5.1; 2.3s 14 25.2 105.1 41.7 329 21 U4 345-072830; 10.7;145237.9873;-210236.055 2025 May 13 19 23.8 27.7 42.7 87 43 3156 Ellington; 16.7; 31km; 4.2; 1.2s 19 23.9 28.8 41.4 89 42 U4 578-045293; 12.4; 90242.2740;+253136.446 19 24.0 29.9 40.1 91 41 2025 May 14 14 11.9 128.2 40.0 341 44 1603 Neva; 15.3; 40km; 2.5; 3.1s 14 12.8 118.9 42.1 330 39 U4 428-061465; 12.9;150835.2996;- 42653.737 14 13.7 108.1 44.4 319 33 2025 May 14 14 48.3 149.3 46.9 343 21 555 Norma; 16.1; 31km; 3.7; 2.8s 14 48.4 148.3 47.2 342 21 U4 350-098435; 12.4;172153.0739;-200325.008 14 48.5 147.2 47.5 341 20 2025 May 14 15 29.7 94.5 40.2 48 31 899 Jokaste; 16.2; 31km; 3.7; 3.9s 15 30.3 100.6 42.7 52 26 U4 422-052616; 12.5;103254.6132;- 54527.056 15 30.9 108.7 45.5 58 20 2025 May 15 12 20.8 147.0 48.8 92 26 22009 1999 XK77; 19.7; 22km; 8.0; 1.0s 12 20.9 149.0 47.8 94 24 U4 553-044699; 11.7; 84317.7689;+203037.072 2025 May 17 19 52.9 99.5 42.4 24 24 3507 Vilas; 15.3; 25km; 2.7; 2.8s 19 56.4 75.6 41.3 359 28 U4 349-081841; 12.7;164425.1431;-202255.758 19 59.9 50.0 45.8 334 20 2025 May 17 20 30.5 91.6 40.1 355 33 430 Hybris; 16.7; 32km; 3.7; 3.4s 20 31.0 88.2 42.7 351 30 U4 366-140797; 13.0;183820.9599;-165529.492 20 31.5 84.5 45.5 347 27 2025 May 17 21 33.5 66.9 41.2 50 20 2659 Millis; 16.3; 28km; 3.9; 2.4s 21 35.7 46.4 44.9 30 27 U4 383-067547; 12.4;143717.1371;-132614.711 21 37.9 27.6 51.6 10 24 2025 May 18 21 18.7 65.0 47.5 79 33 1191 Alfaterna; 15.3; 47km; 3.8; 7.1s 21 22.1 39.3 45.6 56 50 U4 537-054032; 11.5;133712.1367;+172040.312 21 25.5 20.2 41.5 32 63 2025 May 19 16 59.3 131.8 40.1 326 40 2378 Pannekoek; 16.6; 40km; 3.9; 5.9s 17 00.5 124.7 45.2 320 33 U4 431-092991; 12.7;191154.8197;- 35737.685 17 01.7 114.5 51.1 312 24 2025 May 20 11 47.2 147.5 44.2 67 42 1723 Klemola; 15.6; 33km; 2.7; 2.3s 11 47.3 148.5 43.7 69 41 U4 526-052131; 13.0;102514.3897;+150005.017 11 47.4 149.5 43.3 70 41 2025 May 20 18 58.0 52.9 48.5 97 33 2146 Stentor; 18.0; 51km; 5.1; 3.2s 18 58.4 58.0 45.1 102 29 U4 591-047384; 12.9; 93541.1509;+280243.286 18 58.8 63.7 41.1 107 24 2025 May 21 14 50.8 149.2 45.0 5 36 2091 Sampo; 15.0; 23km; 2.4; 1.8s 14 52.4 132.4 46.3 345 34 U4 406-066408; 12.8;162927.2264;- 85917.371 14 54.0 112.8 48.6 324 26 2025 May 22 13 52.9 149.0 40.7 337 31 4436 Ortizmoreno; 16.4; 31km; 4.3; 2.3s 13 53.3 145.1 40.2 333 30 U4 373-083272; 12.2;171107.3041;-152915.330 13 55.1 124.4 40.1 313 20 2025 May 24 19 58.9 99.7 40.3 1 40 2879 Shimizu; 16.4; 22km; 4.0; 3.5s 20 02.5 81.8 44.1 339 34 U4 404-087237; 12.4;184635.0788;- 91326.202 20 06.1 57.5 49.9 315 21 2025 May 25 15 59.4 95.1 40.1 337 26 2439 Ulugbek; 16.8; 21km; 6.0; 1.5s 15 59.7 91.0 41.8 333 23 U4 349-076946; 10.8;160038.0025;-201645.495 16 00.0 86.3 44.0 329 20 2025 May 25 15 55.1 140.5 40.5 311 29 4162 SAF; 17.0; 25km; 6.2; 2.8s 15 55.6 138.2 44.1 310 25 U4 416-144375; 10.8;204049.3761;- 65900.132 15 56.1 134.7 48.0 308 21 2025 May 27 18 18.8 94.4 40.2 334 48 3046 Moliere; 18.2; 21km; 5.5; 1.6s 18 19.8 83.3 44.0 322 40 U4 454-073606; 12.7;180449.8501;+ 03906.327 18 20.8 68.7 48.0 308 30 2025 May 28 20 51.3 23.8 46.5 108 24 9661 Hohmann; 19.1; 28km; 7.3; 1.1s 20 51.4 24.9 44.9 109 23 U4 595-045436; 11.8; 91009.6803;+285715.915 20 51.5 26.0 43.2 110 21