![\"\"](\"http:\/\/www.petrhoralek.com\/wp-content\/uploads\/2018\/10\/2015_08_15_Kolonica_Hvezdarna_Fulldome_metasy_StereoGraf_Sirka_Radiant_1500px.png\")
<\/a>From Kolonica planetarium into the Perseid radiant<\/p><\/div>Welcome to the Kolonica Observatory<\/a>, Slovakia, located in the Dark Sky Park Poloniny<\/a>. Just this place was in August 2018 perfect center for observing annual Perseid meteor shower caused by debris of comet Swift-Tuttle’s nucleus. The celestial show was amazing as usual, bringing even some of spactacular fireballs. Here comes photographic testimony of whole shower, captured between 6th and 14th August 2018.<\/p>\n From total 468 meteors captured during the 8 nights, there are 149 Perseids used in the full sky version. The faintest were about 3rd magnitude, the brightest one was fireball on August 12<\/a>, with magnitude about -9. Meteoroids enter in Earth’s atmosphere with velocity about 59 km\/s, causing light phenomena in high atmosphere, typically between 160 and 80 kilometres abouve the ground, and also colours<\/a> of vaporising gas around the meteoroid. As layers of the meteoroid abrade and ionize, the colour of the light<\/a> emitted may change according to the layering of minerals. For the Perseids, most typical is green color when entering the atmosphere and yellow-purple if the meteoroid gets lower in the atmosphere. Thus the brightest meteors are always most vivid.<\/p>\n Enjoy the virtual reality…<\/strong><\/p>\n