{"version":1,"generatedAt":"2026-10-28T10:38:56.207Z","kind":"meteor-shower-peak","name":"Perseids 2025","shower":{"id":"perseids","name":"Perseids","parent":"Comet Swift-Tuttle","zhr":100,"populationIndex":2.2,"velocityKmS":59},"peak":{"at":"2025-08-12T19:50:26.000Z","solarLongitudeJ2000":140},"radiant":{"ra":3.07,"dec":58,"frame":"J2000","raUnit":"hours","decUnit":"degrees"},"moonAtPeak":{"phase":"Waning Gibbous","illumination":0.85},"visibility":{"neverRisesBeyond":{"hemisphere":"south","latitude":32},"neverSetsBeyond":{"hemisphere":"north","latitude":32},"nightOf":"2025-08-12","longitude":0,"skyBortle":5,"bands":[{"latitude":60,"verdict":"moonlit","summary":"About 47 an hour; a Moon 83% lit drowns the faint ones","radiantHighestAt":"2025-08-13T01:53:07.737Z","radiantAltitude":62,"perHour":47,"fullyDark":false,"moon":{"illumination":0.83,"up":true}},{"latitude":45,"verdict":"moonlit","summary":"About 43 an hour; a Moon 83% lit drowns the faint ones","radiantHighestAt":"2025-08-13T02:57:09.133Z","radiantAltitude":62,"perHour":43,"fullyDark":true,"moon":{"illumination":0.83,"up":true}},{"latitude":30,"verdict":"moonlit","summary":"About 36 an hour; a Moon 83% lit drowns the faint ones","radiantHighestAt":"2025-08-13T03:50:22.755Z","radiantAltitude":56,"perHour":36,"fullyDark":true,"moon":{"illumination":0.83,"up":true}},{"latitude":15,"verdict":"moonlit","summary":"About 29 an hour; a Moon 82% lit drowns the faint ones","radiantHighestAt":"2025-08-13T04:29:32.596Z","radiantAltitude":45,"perHour":29,"fullyDark":true,"moon":{"illumination":0.82,"up":true}},{"latitude":0,"verdict":"moonlit","summary":"About 22 an hour; a Moon 82% lit drowns the faint ones","radiantHighestAt":"2025-08-13T04:49:29.584Z","radiantAltitude":31,"perHour":22,"fullyDark":true,"moon":{"illumination":0.82,"up":true}},{"latitude":-15,"verdict":"moonlit","summary":"About 13 an hour; a Moon 82% lit drowns the faint ones","radiantHighestAt":"2025-08-13T04:55:20.637Z","radiantAltitude":16,"perHour":13,"fullyDark":true,"moon":{"illumination":0.82,"up":true}},{"latitude":-30,"verdict":"few","summary":"Hardly any: about 1.4 an hour at best","radiantHighestAt":"2025-08-13T05:05:10.264Z","radiantAltitude":2,"perHour":1.4,"fullyDark":true,"moon":{"illumination":0.82,"up":true}},{"latitude":-45,"verdict":"never-rises","summary":"The radiant never rises","radiantHighestAt":null,"radiantAltitude":null,"perHour":null,"fullyDark":true,"moon":{"illumination":0.84,"up":true}}]},"links":{"page":"https://www.whatthestar.com/meteor-showers/perseids-2025","map":"https://www.whatthestar.com/explore?ra=3.07&dec=58&fov=40&t=2025-08-12T19%3A50%3A00.000Z"},"sources":[{"name":"International Meteor Organization, Meteor Shower Calendar (J. Rendtel): each maximum’s solar longitude, ZHR, population index and radiant","url":"https://www.imo.net/"},{"name":"J. Meeus, Astronomical Algorithms, ch. 25 (the Sun) and ch. 47–48 (the Moon), as the map draws them","url":"https://www.whatthestar.com/credits#method-moon"},{"name":"U.S. Naval Observatory, Astronomical Applications: the Moon’s illuminated fraction, which the tests hold these to","url":"https://aa.usno.navy.mil/data/"}]}