用户名/邮箱
登录密码
验证码
看不清?换一张
您好,欢迎访问! [ 登录 | 注册 ]
您的位置:首页 - 最新资讯
Leonid meteor shower to light up the skies this week - When and where to see in UK tonight
2021-11-17 00:00:00.0     每日快报-科学     原网页

       The Leonids may be less prolific than the Perseids or Orionids, but the annual meteor shower is still guaranteed to dazzle amateur stargazers this week. The shower starts each year in early November when our planet ploughs through a dusty debris field left behind the comet Temple-Tuttle. Tiny bits and pieces of the comet crash into Earth's atmosphere, creating beautiful streeks of light at speeds of up to 70km per second.

       This year, the Leonids are expected to be active between November 5 and 29, which means the shower has already begun.

       But the best views are yet to come, as the astronomers predict the shower will be most intense in the pre-dawn hours of Wednesday morning through to Thursday.

       This will be the night of the so-called peak and, weather permitting, you should see anywhere between 10 to 15 shooting stars an hour.

       According to the US space agency NASA, these will be "bright and colourful" meteors that will zip across the night skies at breakneck speeds.

       READ MORE: Germany blows top: Russian gas pipeline SUSPENDED

       And though the meteor shower arrives each year, the Comet Temple-Tuttle takes about 33 years to complete a lap around the Sun.

       Consequently, every 33 years or so, stargazers are treated to a so-called meteor storm that produces thousands of shooting stars during the peak.

       NASA explained: "Viewers in 1966 experienced a spectacular Leonid storm: thousands of meteors per minute fell through Earth's atmosphere during a 15 minute period.

       "There were so many meteors seen that they appeared to fall like rain.

       "The last Leonid meteor storm took place in 2002."

       Meteor showers are best seen in a dark and quiet place, far from distracting city lights.

       Your best bet is to find a wide open field or park that offers unobstructed views of the horizon.

       Keep in mind that city lights, cars and even smartphones can be incredibly distracting and prevent your eyes from seeing the shooting stars.

       When you go out give your eyes up to 20 minutes to adjust to the dark - and remember to dress appropriately for the weather.

       DON'T MISS...

       Hundreds hospitalised after plague of scorpions hits Egypt [REPORT]

       EU's Galileo placed on red after Russia's 'reckless' missile test [LATEST]

       Sea ‘aliens’ washing up on British beaches can kill with single sting [INSIGHT]

       The shower will be best seen at about midnight and into the pre-dawn hours on Wednesday.

       NASA said: "Come prepared for winter temperatures with a sleeping bag, blanket or lawn chair.

       "Orient yourself with your feet towards east, lie flat on your back, and look up, taking in as much of the sky as possible.

       "In less than 30 minutes in the dark, your eyes will adapt and you will begin to see meteors.

       "Be patient - the show will last until dawn, so you have plenty of time to catch a glimpse."

       The Leonids are bits and pieces of the Comet Temple-Tuttle that burn up in the planet's atmosphere.

       As the comet races around the Sun, particles and dust from its outer layers break off and are left behind the chunk of ice.

       Earth happens to pass the comet's orbit in November, as well dozens of other comet and asteroid trails throughout the year.

       The Leonids are named after their so-called radiant point - the point from which they appear to emerge in the sky - in the constellation Leo the Lion.

       But the good news is you will not have to look for Leo this week.

       NASA said: "It is actually better to view the Leonids away from the radiant: They will appear longer and more spectacular from this perspective.

       "If you do look directly at the radiant, you will find that the meteors will be short—this is an effect of perspective called foreshortening."


标签:综合
关键词: Leonid     shower     Leonids     meteors     comet     Temple-Tuttle     Earth's atmosphere     meteor     so-called    
滚动新闻