国产一级片一区二区三区Iav黄色免费看I久久久久国产成人免费精品免费I人成午夜视频I97福利在线I国产麻豆剧传媒免费观看I久久爱www.I一区二区三区视频在线I久久免费高清I麻豆国产精品永久免费视频I91尤物国产尤物福利在线播放

Perseid meteor shower to peak in coming two days

Source: Xinhua| 2019-08-12 05:25:20|Editor: huaxia
Video PlayerClose

File photo: A flashing meteor is seen during the Perseid Meteor Shower in the starry sky above the woods in Strigova, Croatia, on Aug. 12, 2018. (Xinhua/Vjeran Zganec Rogulja)

People in Northern Hemisphere will be able to see the annual Perseid meteor shower in its peak on Monday and Tuesday if the sky and surroundings are dark enough, NASA says.

LOS ANGELES, Aug. 11 (Xinhua) -- The annual Perseid meteor shower is anticipated to peak on Monday and Tuesday, and is visible to anyone in the Northern Hemisphere - as long as the sky and surroundings are dark enough, according to NASA.

"Under a clear, dark sky far from city lights, we expect meteor rates as high as 100 per hour on peak night," said Bill Cooke of NASA's Meteoroid Environment Office.

The show can be especially good this year because the moon is nearly new when the shower peaks, said Cooke.

The Perseid meteor shower is caused by debris from Comet Swift-Tuttle. Every 133 years the huge comet swings through the inner solar system and ejects a trail of dust and gravel along its orbit. When Earth passes through the debris, specks of comet-stuff hit the atmosphere at 140,000 mph and disintegrate in flashes of light, according to NASA.

Generally, every year, some meteors from the Perseids are visible from the middle of July to late August.

Meteors from Comet Swift-Tuttle are called Perseids because they seem to fly out of the constellation Perseus. This arrangement of stars, which represents an ancient hero from Greek mythology, rises in the NE around 10 p.m. local time. As Perseus rises and the night deepens, meteor rates will increase, according to NASA.

Meteors will be seen until dawn brightens the sky on Thursday morning, when Perseus is near its highest point in the sky.

NASA suggested that viewers get away from city lights for best results. The darkness of the countryside multiplies the visible meteor rate 3- to 10-fold compared to city views.

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011102121383014761
主站蜘蛛池模板: 亚洲裸男自慰gv网站| 久久国产精品99国产精| 亚洲精品一区国产| 少妇又色又紧又爽又刺激视频 | 无码少妇一区二区| 中文无码伦av中文字幕在线| 东京热无码av一区二区| 少妇特黄a片一区二区三区| 国产高清av首播原创麻豆| 国产成人亚洲精品无码青| 一本久道久久综合狠狠爱| 国产在热线精品视频| 日本丰满熟妇videossex8k| 国内精品人妻无码久久久影院导航| 琪琪女色窝窝777777| 久热这里只精品99国产6| 97人妻中文字幕总站| 亚洲人成人无码网www电影首页 | 国产国语亲子伦亲子| 久久久久青草线蕉综合| 成人视频在线观看18| 狠狠亚洲色一日本高清色| 992tv精品视频tv在线观看| 丰满熟妇乱又伦在线无码视频| 亚洲a∨大乳天堂在线| 国产精品自在欧美一区| 国产亚洲美女精品久久久久| 99在线精品视频观看免费| 亚洲日韩国产av中文字幕| 国产亚洲精品a在线看| 无码专区一ⅴa亚洲v天堂| 无遮挡h肉动漫在线观看| 免费精品无码av片在线观看| 亚洲AV秘?成人久久无码海归| 午夜片少妇无码区在线观看 | 97碰碰碰人妻无码视频| 国产成人av三级在线观看按摩| 天天天天噜在线视频| 久久亚洲精品无码gv| 无码av一区二区三区无码| 婷婷综合缴情亚洲狠狠|