注意！流星雨今日迎来极大！今年最后一次……
<div class="wx_rich_media_content" id="jsWxContainer"><h1></h1><section data-role="outer" label="edit by 135editor"><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><span style='color: rgb(0, 0, 0);'>天文科普专家介绍，2022年最后一场流星雨——</span><span style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'><strong style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'>小熊座流星雨于本月23日迎来极大，极大时每小时天顶流量（ZHR）为10，平均每6分钟一滴“雨”。</strong></span></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><font color="#000000">这个流星雨因为辐射点接近小熊座的β星（我国古代称北极二或帝星）而得名。作为辐射点赤纬最高的流星群，小熊座流星雨是一场每年固定发生的小流星雨，同时作为辐射点最靠近北天极的一场流星雨而广受资深爱好者瞩目。其母体彗星8p/塔特尔的公转周期约为13.6年。</font></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><font color="#000000">中国天文学会会员、天津市天文学会理事修立鹏介绍，小熊座流星雨具有以下几个特点：一是活跃时间从每年12月17日至12月26日，持续一周左右，但是绝大多数流量都集中在极大时的窗口期附近，只有几个小时；二是流量不大，ZHR为10，偶尔可达50左右；三是流星速度慢，常有特别明亮的火流星出现；四是极大期处在冬至节气前后，黑夜时间长，再加上辐射点的赤纬很高，可观测时间长。</font></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><span class="wxart_image" wx-style='display:inline-block;outline: 0px;width: 596px;display: initial;box-sizing: border-box !important;overflow-wrap: break-word !important;visibility: visible !important;'></span></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; visibility: visible; box-sizing: border-box !important;'><font color="#000000">天文预报显示，今年的小熊座流星雨没有爆发预期，极大时刻出现在12月23日6时，ZHR为10。月光是观测流星雨时最大的天文不利因素，好在今年的小熊座流星雨极大前后一两天不受月光干扰。</font></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><font color="#000000">“由于小熊座流星雨的辐射点很靠近北极星，对于我国的流星雨爱好者来说，几乎所有小熊座流星雨的群内流星都不会被错过，而且整夜都可以观测。”修立鹏说。</font></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><font color="#000000">如果天气晴好，12月22日和23日这两晚，做好防寒保暖后，流星雨爱好者不妨走到户外，寻一处光污染小且视野开阔处，通过寻找北极星来定位小熊座，它不会没入地平线，很容易辨认。</font></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><span class="wxart_image" wx-style='display:inline-block;outline: 0px;width: 596px;display: initial;box-sizing: border-box !important;overflow-wrap: break-word !important;visibility: visible !important;'></span></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><br style='outline: 0px; max-width: 100%; box-sizing: border-box !important;'></p><p style='outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; box-sizing: border-box !important;'><font color="#000000">“找到小熊座后可进行目视计数观测，数一数、记一记自己到底能看到多少颗流星。需要注意的是，观测时一定不要只盯着流星雨的辐射点方向看，流星可能出现在天空的任何方向。”修立鹏提醒。</font></p></section><section data-role="outer" label="edit by 135editor" deep="6" style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'><p style='text-align: right; outline: 0px; max-width: 100%; letter-spacing: 0.544px; font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; max-inline-size: 100%; cursor: text; line-height: 1.5em; visibility: visible; box-sizing: border-box !important;'><span style='outline: 0px; max-width: 100%; color: rgb(84, 84, 84); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, Arial, sans-serif; font-size: 12px; letter-spacing: 0.54px; visibility: visible; box-sizing: border-box !important;'>（来源：人民日报）</span></p><p style='text-align: center; outline: 0px; max-width: 100%; letter-spacing: 0.544px; font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; max-inline-size: 100%; cursor: text; line-height: 1.5em; visibility: visible; box-sizing: border-box !important;'><span style='outline: 0px; max-width: 100%; color: rgb(84, 84, 84); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, Arial, sans-serif; font-size: 12px; letter-spacing: 0.54px; visibility: visible; box-sizing: border-box !important;'><img src="https://www.yewn.cn/data/attachment/forum/202211/29/105614pez3ib35kfvdngoe.jpg"></span></p><p style='text-align: center; outline: 0px; max-width: 100%; letter-spacing: 0.544px; font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; max-inline-size: 100%; cursor: text; line-height: 1.5em; visibility: visible; box-sizing: border-box !important;'><span style='outline: 0px; max-width: 100%; color: rgb(84, 84, 84); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, Arial, sans-serif; font-size: 12px; letter-spacing: 0.54px; visibility: visible; box-sizing: border-box !important;'><img src="https://www.yewn.cn/data/attachment/forum/202212/20/092921x3yqog77gh7j37fs.jpg"></span></p><section data-role="outer" label="edit by 135editor" style='outline: 0px; max-width: 100%; letter-spacing: 0.544px; font-family: system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif; visibility: visible; box-sizing: border-box !important;'><section data-role="paragraph" style='outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important;'><section style='outline: 0px; max-width: 100%; letter-spacing: 0.544px; max-inline-size: 100%; line-height: 1.5em; visibility: visible; font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; box-sizing: border-box !important;'><br></section></section></section></section><p style='display: none;'><mp-style-type data-value="3"></mp-style-type></p></div> 谢谢提醒发布了。 温柔的星空，应该让你感动…… 流星雨的四季 温柔的星空，应该让你感动…… 谢谢提醒发布了。 太冷，没出去 谢谢提醒！！！ 一起去看流星雨
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