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學(xué)習(xí)快評(píng)丨qibao666888　　北??(bei)京??(jing)天??(tian)文??(wen)館??(guan)科?(ke)普??(pu)教??(jiao)育??(yu)部?(bu)副??(fu)研??(yan)究?(jiu)館??(guan)員??(yuan)曹??(cao)軍??(jun)表?(biao)示??(shi)??，如??(ru)果?(guo)持??(chi)續(xù)??(xu)觀??(guan)察??(cha)土??(tu)星?(xing)??，會(huì)??(hui)發(fā)??(fa)現(xiàn)??(xian)光??(guang)環(huán)??(huan)朝??(chao)向??(xiang)地??(di)球??(qiu)的?(de)角??(jiao)度??(du)是??(shi)在??(zai)不??(bu)斷??(duan)變??(bian)化??(hua)的??(de)??，大??(da)概??(gai)十??(shi)幾??(ji)年??(nian)會(huì)??(hui)完??(wan)成??(cheng)一??(yi)個(gè)??(ge)輪??(lun)回??(hui)?。??今??(jin)年??(nian)3月??(yue)份??(fen)??，地??(di)球??(qiu)正??(zheng)好??(hao)在??(zai)光?(guang)環(huán)??(huan)的??(de)平??(ping)面??(mian)上??(shang)??，因??(yin)此??(ci)看?(kan)上??(shang)去??(qu)就??(jiu)好??(hao)像??(xiang)光??(guang)環(huán)??(huan)消??(xiao)失??(shi)了??(le)一??(yi)樣??(yang)??！　　氨??(bo)如??(ru)蟬??(chan)翼??(yi)”的??(de)土??(tu)星??(xing)環(huán)??(huan)是??(shi)由??(you)什??(shen)么??(me)組??(zu)成?(cheng)的??(de)？?。