李博士稍為停了一會,待大家消化了有機會看到過百流星的震撼後再繼續:「流星雨大家知係咩嘢啦,問問大家,今晚我哋睇邊範流星雨呢…(大伙兒又七嘴八舌:英仙座流星雨)…好,大家都好畀面總算未瞓著,英仙座流星雨(Perseids)係以英仙座星群附近為輻射點出現嘅流星雨。聽清楚呀,今晚嘅流星雨其實係同英仙座啲星無關㗎…(一眾學生張口結舌,包括我在內,誰想到成日講英仙座原來唔關事嘅)…嘿,估唔到哩。260Please respect copyright.PENANAftCSGVSriA
260Please respect copyright.PENANAufGKVwSkWc
因為流星雨輻射點喺英仙座左近,所以就乾脆以英仙座嚟命名,咁乜嘢係輻射點呢?原來大部份嘅流星出現時,睇起嚟好似從天空某一個點向四面八方爆射出去,而嗰個爆發點就叫做『輻射點』嘞,由於彗星週期巡行嘅軌跡變化唔大,因此喺下個回歸週期,只要搵返相同嘅位置,就可以捕返嗰粒慧星所散射嘅流星喇,而最簡單喺天空搵位置呢,自然就係用星座嚟定位…(場中大家同聲同氣:哦~)…260Please respect copyright.PENANA1SoN1Qv13F
260Please respect copyright.PENANAIbIHDcEeUC
所以大家想捕捉流星雨,首要學觀星,當然今晚我哋要學識搵英仙座啦。英仙座Perseus係北天星座,以希臘神話英雄柏修斯命名,最有名嘅傳說就係斬咗蛇髮女妖美杜莎,用佢個頭令到敵人石化…(又有人開始打呵欠了)…唏,《聖鬥士》裡面都有英仙座白銀聖鬥士,佢嘅武器正正就係『美杜莎之盾』…(在眾人竊竊私語之際,博士掛起一張星圖在外面)嗱,呢張就係英仙座嘅恆星表列圖,你留意吓星群構成嘅外圍形狀,就好似柏修斯右手舉刀喺頭頂,左手執著美杜莎嘅頭於腰間,以半跪嘅姿態腳踏一雙有飛翼嘅鞋。係呀,睇星要畀少少想像力嘅…」李博士一口氣講了幾乎半個鐘。260Please respect copyright.PENANA06iVkH5GHu
260Please respect copyright.PENANAV1XqECr93A
我忍不住跟Leon吐糟:「門小你鹵味,都無話咁甩皮甩骨吓嘛…」260Please respect copyright.PENANA1GaIj5PWzl
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《我老婆唔係我女朋友》【那些年/九十年代/真人】 第七章全新中篇!
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《我老婆唔係我女朋友》【那些年/九十年代/真人】 第七章全新中篇!
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I.T.陳老二
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ISSUE #134
【第八章】 全民學星(3)
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