二至点

December Solstice 2026

日期与时间

2026年12月21日星期一

UTC

概览

Sun reaches southernmost declination (−23.44°). Shortest day in the Northern Hemisphere.

events.detail.knowledgeHeading

events.detail.knowledgeCard1Title

A solstice occurs when the Sun reaches its northernmost (+23.44°) or southernmost (−23.44°) declination, marking the longest or shortest day of the year. The June solstice brings the longest day in the Northern Hemisphere; the December solstice brings the shortest. These dates are fundamental reference points for solar position calculations worldwide.

events.detail.knowledgeCard1Source

events.detail.knowledgeCard2Title

events.detail.knowledgeCard2Body

events.detail.knowledgeCard2Source

events.detail.knowledgeCard3Title

events.detail.knowledgeCard3Body

events.detail.knowledgeCard3Source

events.detail.knowledgeCard4Title

events.detail.knowledgeCard4Body

events.detail.knowledgeCard4Source

events.detail.faqHeading

events.detail.faqQ1

events.detail.faqA1

events.detail.faqQ2

events.detail.faqA2

events.detail.faqQ3

events.detail.faqA3

events.detail.faqQ4

events.detail.faqA4

events.detail.faqQ5

events.detail.faqA5

events.detail.howtoTitle

1
events.detail.howtoStep1Name
events.detail.howtoStep1Text
2
events.detail.howtoStep2Name
events.detail.howtoStep2Text
3
events.detail.howtoStep3Name
events.detail.howtoStep3Text
4
events.detail.howtoStep4Name
events.detail.howtoStep4Text

数据来源

二至点和二分点日期根据 JPL DE440 星历计算（与 NASA 使用的行星/月球星历相同）。流星雨峰值日期与 ZHR 值遵循国际流星组织（IMO）年度日历。行星事件数据来自 NASA Horizons 系统。

规划您的观测

使用以下免费工具为事件做好准备：

☀️ 太阳视算与黄金时刻计算器 🌆 晨昏时刻计算器 🌙 月相同步——月相与干扰检测 🔭 望远镜视场计算器 🌌 events.detail.toolKpIndex

events.detail.privacyStatement

← 返回全部事件