英仙座流星雨观赏小贴士
<p>1. <span word="There">There</span> <span word="is">is</span> <span word="no">no</span> <span word="need">need</span> <span word="for">for</span> <span word="binoculars">binoculars</span> <span word="or">or</span> <span word="telescopes">telescopes</span> <span word="to">to</span> <span word="enjoy">enjoy</span> <span word="the">the</span> <span word="celestial">celestial</span> <span word="fireworks">fireworks</span>–<span word="just">just</span> <span word="unaided">unaided</span> <span word="eyes">eyes</span>. <span word="Because">Because</span> <span word="the">the</span> <span word="meteors">meteors</span> <span word="can">can</span> <span word="appear">appear</span> <span word="to">to</span> <span word="streak">streak</span> <span word="across">across</span> <span word="large">large</span> <span word="parts">parts</span> <span word="of">of</span> <span word="the">the</span> <span word="sky">sky</span>, <span word="the">the</span> <span word="human">human</span> <span word="eye">eye</span> <span word="can">can</span> <span word="soak">soak</span> <span word="in">in</span> <span word="large">large</span> <span word="portions">portions</span> <span word="of">of</span> <span word="the">the</span> <span word="overhead">overhead</span> <span word="sky">sky</span>, <span word="offering">offering</span> <span word="a">a</span> <span word="greater">greater</span> <span word="chance">chance</span> <span word="to">to</span> <span word="catch">catch</span> <span word="one">one</span> <span word="zipping">zipping</span> <span word="by">by</span>.</p><p>无需双目望远镜或天文望远镜的协助，单凭肉眼就能欣赏天庭之焰。因为流星下落时会在空中划过很长的距离，而人眼观测天空的视角更大，看到流行下落的几率也随之变大。</p><p>2. <span word="Give">Give</span> <span word="your">your</span> <span word="eyes">eyes</span> <span word="at">at</span> <span word="least">least</span> 15 <span word="to">to</span> 20 <span word="minutes">minutes</span> <span word="to">to</span> <span word="adapt">adapt</span> <span word="to">to</span> <span word="the">the</span> <span word="darkness">darkness</span> <span word="of">of</span> <span word="night">night</span> <span word="when">when</span> <span word="you">you</span> <span word="step">step</span> <span word="outside">outside</span> <span word="to">to</span> <span word="view">view</span> <span word="the">the</span> <span word="shower">shower</span>. <span word="Try">Try</span> <span word="to">to</span> <span word="avoid">avoid</span> <span word="looking">looking</span> <span word="at">at</span> <span word="any">any</span> <span word="white">white</span> <span word="lights">lights</span> <span word="while">while</span> <span word="under">under</span> <span word="the">the</span> <span word="stars">stars</span>.</p><p>外出观看流星雨时，至少提前留出15到20分钟的时间让眼睛适应黑暗。观赏流星时尽量避开其它亮白光线。</p><p><span word="Flashlights">Flashlights</span>, <span word="porch">porch</span>-<span word="lights">lights</span> <span word="and">and</span> <span word="headlamps">headlamps</span> <span word="shining">shining</span> <span word="into">into</span> <span word="your">your</span> <span word="eyes">eyes</span> <span word="can">can</span> <span word="set">set</span> <span word="you">you</span> <span word="back">back</span> <span word="as">as</span> <span word="much">much</span> <span word="as">as</span> 30 <span word="minutes">minutes</span> <span word="in">in</span> <span word="terms">terms</span> <span word="of">of</span> <span word="your">your</span> <span word="night">night</span> <span word="adapted">adapted</span> <span word="vision">vision</span>.</p><p>闪光灯、手电、头灯的光线照到眼睛后，需要长达30分钟的休息时间才能重新适应黑暗环境。</p><p><span word="As">As</span> <span word="an">an</span> <span word="alternative">alternative</span>, <span word="use">use</span> <span word="a">a</span> <span word="red">red</span> <span word="colored">colored</span> <span word="flashlight">flashlight</span> <span word="for">for</span> <span word="seeing">seeing</span> <span word="when">when</span> <span word="skywatching">skywatching</span>. <span word="It">It</span> <span word="is">is</span> <span word="easy">easy</span> <span word="to">to</span> <span word="rig">rig</span> <span word="your">your</span> <span word="own">own</span> <span word="red">red</span> <span word="light">light</span> <span word="by">by</span> <span word="taking">taking</span> <span word="a">a</span> <span word="few">few</span> <span word="layers">layers</span> <span word="of">of</span> <span word="red">red</span> <span word="cellophane">cellophane</span> <span word="gift">gift</span> <span word="wrapping">wrapping</span> <span word="and">and</span> <span word="securing">securing</span> <span word="it">it</span> <span word="to">to</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="the">the</span> <span word="flashlight">flashlight</span> <span word="with">with</span> <span word="a">a</span> <span word="rubber">rubber</span> <span word="band">band</span>.</p><p>但是可以选择红色光线的照明工具。自制红色手电的方法很简单：用几张包裹礼物的红色玻璃纸包住手电筒，末端用橡皮筋固定好即可。</p>
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