{"version":1,"generatedAt":"2026-10-28T10:38:56.207Z","kind":"meteor-shower-peak","name":"Leonids 2025","shower":{"id":"leonids","name":"Leonids","parent":"Comet Tempel-Tuttle","zhr":15,"populationIndex":2.5,"velocityKmS":71},"peak":{"at":"2025-11-17T17:35:12.000Z","solarLongitudeJ2000":235.27},"radiant":{"ra":10.13,"dec":21.6,"frame":"J2000","raUnit":"hours","decUnit":"degrees"},"moonAtPeak":{"phase":"Waning Crescent","illumination":0.06},"visibility":{"neverRisesBeyond":{"hemisphere":"south","latitude":68.4},"neverSetsBeyond":{"hemisphere":"north","latitude":68.4},"nightOf":"2025-11-17","longitude":0,"skyBortle":5,"bands":[{"latitude":60,"verdict":"good","summary":"About 7.3 an hour","radiantHighestAt":"2025-11-18T05:27:01.500Z","radiantAltitude":50,"perHour":7.3,"fullyDark":true,"moon":{"illumination":0.04,"up":false}},{"latitude":45,"verdict":"good","summary":"About 8.4 an hour","radiantHighestAt":"2025-11-18T05:11:28.421Z","radiantAltitude":63,"perHour":8.4,"fullyDark":true,"moon":{"illumination":0.04,"up":false}},{"latitude":30,"verdict":"good","summary":"About 8.9 an hour","radiantHighestAt":"2025-11-18T04:55:50.829Z","radiantAltitude":69,"perHour":8.9,"fullyDark":true,"moon":{"illumination":0.04,"up":true}},{"latitude":15,"verdict":"good","summary":"About 8.7 an hour","radiantHighestAt":"2025-11-18T04:41:54.999Z","radiantAltitude":66,"perHour":8.7,"fullyDark":true,"moon":{"illumination":0.04,"up":true}},{"latitude":0,"verdict":"good","summary":"About 7.7 an hour","radiantHighestAt":"2025-11-18T04:21:27.498Z","radiantAltitude":54,"perHour":7.7,"fullyDark":true,"moon":{"illumination":0.04,"up":true}},{"latitude":-15,"verdict":"good","summary":"About 6 an hour","radiantHighestAt":"2025-11-18T03:57:26.321Z","radiantAltitude":40,"perHour":6,"fullyDark":true,"moon":{"illumination":0.04,"up":true}},{"latitude":-30,"verdict":"good","summary":"About 3.6 an hour","radiantHighestAt":"2025-11-18T03:16:31.975Z","radiantAltitude":22,"perHour":3.6,"fullyDark":true,"moon":{"illumination":0.04,"up":false}},{"latitude":-45,"verdict":"few","summary":"Hardly any: about 0.2 an hour at best","radiantHighestAt":"2025-11-18T02:01:53.287Z","radiantAltitude":1,"perHour":0.2,"fullyDark":true,"moon":{"illumination":0.04,"up":false}}]},"links":{"page":"https://www.whatthestar.com/meteor-showers/leonids-2025","map":"https://www.whatthestar.com/explore?ra=10.13&dec=21.6&fov=40&t=2025-11-17T17%3A35%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/"}]}