第二天想起了释放个信标,证明我在此地打卡。
EarthSky提供让天文爱好者更好欣赏流星雨的方法:Duration of shower: July 14 to September 1. Radiant: The radiant rises in the middle of the night and is highest at dawn. See chart below。 Nearest moon phase: Full moon falls at 1:36 UTC on August 12. So there will be a bright moon up during the Perseids’ peak in 2022. Take advantage of the moon-free mornings in early August for watching the Perseids (and the 2022 Delta Aquariids).Expected meteors at peak, under ideal conditions: Under a dark sky with no moon, skywatchers frequently report 90 meteors or more per hour. It’s doubtful we’ll see that many in 2022, because of the moon. Note: The August Perseid meteor shower is rich and steady, from early August through the peak. The meteors are colorful. And they frequently leave persistent trains. All of these factors make the Perseid shower perhaps the most beloved meteor shower for the Northern Hemisphere.Report a fireball (very bright meteor) to the American Meteor Society: it’s fun and easy! The annual Perseid meteor shower radiant rises late in the evening, around 11 p.m. local time, nearly due northeast in the constellation Perseus. Perseids are best viewed from midnight to sunrise, but moonlight will outshine dim meteors all night in 2022. The greatest number of meteors will be visible after the radiant rises, but the shooting stars themselves can appear anywhere in the sky, seeming to trail from the radiant point。
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