BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//EAU//Astro Calendar//ZH
BEGIN:VEVENT
UID:2026-12-21-season-1@eau
DTSTAMP:20260916T185904Z
DTSTART;VALUE=DATE:20261221
DTEND;VALUE=DATE:20261222
SUMMARY:冬至 / December Solstice
DESCRIPTION:北半球一年中夜晚最長的一天，是深空攝影的黃金時段。
END:VEVENT
END:VCALENDAR