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Perseid Meteor Shower Peak Was Dimmed by Bright Gibbous Moon, Cutting Sightings to 10–20 per Hour

Bright moonlight left most meteors invisible, prompting stargazers to lower expectations by focusing solely on catching fireballs during late-night hours.

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Overview

  • Analysts including NASA’s Meteoroid Environments Office say the Moon’s 84–86% illumination cut meteor counts to roughly 10–20 visible streaks per hour.
  • The brightest Perseid fireballs still punctuated the sky despite lunar glare, with earthgrazer meteors offering brief early-evening views before moonrise.
  • Stargazers were urged to wait until the darkest window—typically between midnight and 5:30 a.m., with a peak around 2–4 a.m.—and to allow 15–30 minutes for dark adaptation.
  • For those unable to reach dark sites, livestreams hosted by the Virtual Telescope Project and the Global Meteor Network delivered real-time coverage of the shower.
  • The Perseid shower will continue through August 24, affording improved conditions as the Moon wanes and darker skies return.