星空有约丨猎户座流星雨21日迎来极大，观测条件极佳-前沿热点

Core Viewpoint - The Orionid meteor shower is a medium-rate meteor shower observable in both hemispheres, with a peak Zenithal Hourly Rate (ZHR) of about 20, originating from the well-known Halley's Comet [3]. Group 1: Meteor Shower Characteristics - The Orionid meteor shower has a long active period, starting from October 2 and lasting until early November, with peak activity around October 21 [4]. - The meteors are characterized by high speed, brightness, and distinct trails, with occasional bright fireballs [4]. - Ideal observation conditions for this year's peak on October 21 include a new moon, providing a dark sky without moonlight interference [5]. Group 2: Observation Recommendations - The best time for observation is after the radiant point rises around 10 PM (Beijing time) until dawn, with several days around the peak also suitable for viewing [5]. - Observers are advised to avoid city light pollution and choose locations such as rural areas or mountains for optimal viewing [5][6]. - Comfortable seating like reclining chairs or moisture-proof mats is recommended for a better viewing experience [6].