<blockquote id="pl83f"><p id="pl83f"></p></blockquote>
<s id="pl83f"><li id="pl83f"></li></s>

      
      
      <sub id="pl83f"><rt id="pl83f"></rt></sub>

        <blockquote id="pl83f"><p id="pl83f"></p></blockquote>
        <sub id="pl83f"><rt id="pl83f"></rt></sub>
        女人的天堂av在线播放,3d动漫精品一区二区三区,伦精品一区二区三区视频,国产成人av在线影院无毒,亚洲成av人片天堂网老年人,最新国产精品剧情在线ss,视频一区无码中出在线,无码国产精品久久一区免费

        Lyrid meteor shower to peak this week

        Source: Xinhua| 2018-04-19 13:58:30|Editor: Shi Yinglun
        Video PlayerClose

        WASHINGTON, April 18 (Xinhua) -- One of the best meteor showers of the year, the Lyrid meteor shower, has started and will hit its peak in the early morning hours of April 22.

        According to a video from NASA's Jet Propulsion Laboratory (JPL), the Lyrid meteor shower is active from April 14 through April 30. But in the Northern Hemisphere, it peaks on April 22.

        Up to 20 meteors per hour will likely be visible overnight on April 21 to April 22, according to the JPL.

        To view the Lyrid shower, observers should find an area away from light pollution on the night of April 21. As the waxing moon may interfere with visibility, the best time to view it is the few hours after the moon sets.

        Special equipment like telescopes and binoculars are not necessary to view the Lyrid meteor shower, which is safe to view with naked eyes.

        The Lyrids are classified as a medium-strength shower and are visible every year in April, according to the Space Science Telescope Institute.

        The Lyrid meteor shower is one of the oldest known meteor showers. Records of this shower go back some 2,700 years, according to American astronomer Bruce McClure.

        Ancient Chinese are said to have observed the Lyrid meteors falling like rain in the year 687 B.C., McClure wrote on EarthSky.?

        TOP STORIES
        EDITOR’S CHOICE
        MOST VIEWED
        EXPLORE XINHUANET
        010020070750000000000000011100001371223671
        主站蜘蛛池模板: 偷窥国产亚洲免费视频| 无遮无挡爽爽免费视频| 国内熟妇人妻色在线视频| 日韩精品亚洲精品第一页| 一区二区三区国产亚洲网站| jizz视频在线观看| 日产国产一区二区不卡| 国产av熟女一区二区三区| 少妇极品熟妇人妻| 久久se精品一区二区三区| 欧美久久精品一级c片免费| 无码gogo大胆啪啪艺术| 午夜毛片精彩毛片| 久一在线视频| 精品日本乱一区二区三区| 资源在线观看视频一区二区 | 久爱www人成免费网站| 一级做a爰片久久毛片**| 国产午夜美女福利短视频| 一本色道久久综合狠狠躁篇| 91精品乱码一区二区三区| 啪啪av一区二区三区| 伊人中文在线最新版天堂| 丝袜美腿视频一区二区三区| 亚洲 欧美 唯美 国产 伦 综合| av永久天堂一区| 成在线人永久免费视频播放| 精品久久久久国产免费| 久久国产乱子伦免费精品无码 | 亚洲AV无码AV在线影院| 国产亚洲综合欧美视频| 国内精品伊人久久久久影院对白| 亚洲日本va午夜中文字幕一区| 国产精品日日摸夜夜添夜夜添无码| 国产人禽杂交18禁网站| 人妻av无码系列一区二区三区| 日日夜夜噜噜视频| 亚洲精品宾馆在线精品酒店| 中国CHINA体内裑精亚洲日本| 亚洲av天堂综合网久久| 亚洲24小时在线免费视频网站|