{"version":1,"generatedAt":"2026-10-28T10:38:56.207Z","kind":"meteor-shower-peak","name":"Quadrantids 2025","shower":{"id":"quadrantids","name":"Quadrantids","parent":"2003 EH1","zhr":110,"populationIndex":2.1,"velocityKmS":41},"peak":{"at":"2025-01-03T15:03:34.000Z","solarLongitudeJ2000":283.15},"radiant":{"ra":15.33,"dec":49.5,"frame":"J2000","raUnit":"hours","decUnit":"degrees"},"moonAtPeak":{"phase":"Waxing Crescent","illumination":0.16},"visibility":{"neverRisesBeyond":{"hemisphere":"south","latitude":40.5},"neverSetsBeyond":{"hemisphere":"north","latitude":40.5},"nightOf":"2025-01-03","longitude":0,"skyBortle":5,"bands":[{"latitude":60,"verdict":"good","summary":"About 71 an hour","radiantHighestAt":"2025-01-04T06:11:54.199Z","radiantAltitude":68,"perHour":71,"fullyDark":true,"moon":{"illumination":0.21,"up":false}},{"latitude":45,"verdict":"good","summary":"About 68 an hour","radiantHighestAt":"2025-01-04T05:47:16.544Z","radiantAltitude":63,"perHour":68,"fullyDark":true,"moon":{"illumination":0.21,"up":false}},{"latitude":30,"verdict":"good","summary":"About 60 an hour","radiantHighestAt":"2025-01-04T05:28:04.111Z","radiantAltitude":52,"perHour":60,"fullyDark":true,"moon":{"illumination":0.21,"up":false}},{"latitude":15,"verdict":"good","summary":"About 46 an hour","radiantHighestAt":"2025-01-04T05:09:00.790Z","radiantAltitude":38,"perHour":46,"fullyDark":true,"moon":{"illumination":0.21,"up":false}},{"latitude":0,"verdict":"good","summary":"About 28 an hour","radiantHighestAt":"2025-01-04T04:43:03.333Z","radiantAltitude":22,"perHour":28,"fullyDark":true,"moon":{"illumination":0.2,"up":false}},{"latitude":-15,"verdict":"good","summary":"About 7 an hour","radiantHighestAt":"2025-01-04T04:14:05.300Z","radiantAltitude":5,"perHour":7,"fullyDark":true,"moon":{"illumination":0.2,"up":false}},{"latitude":-30,"verdict":"radiant-down","summary":"The radiant is below the horizon while it is dark","radiantHighestAt":null,"radiantAltitude":null,"perHour":null,"fullyDark":true,"moon":{"illumination":0.19,"up":true}},{"latitude":-45,"verdict":"never-rises","summary":"The radiant never rises","radiantHighestAt":null,"radiantAltitude":null,"perHour":null,"fullyDark":true,"moon":{"illumination":0.19,"up":false}}]},"links":{"page":"https://www.whatthestar.com/meteor-showers/quadrantids-2025","map":"https://www.whatthestar.com/explore?ra=15.33&dec=49.5&fov=40&t=2025-01-03T15%3A04%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/"}]}