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雙子座流星雨什么時候來一次相關內容

雙子座流星雨一般是什么時間出現?

在每(mei)年12月13日(ri)至(zhi)14日(ri)左右出現,最高(gao)時(shi)流量(liang)可以達到每(mei)小時(shi)120顆(ke),且流量(liang)極(ji)大,持續時(shi)間(jian)較長。雙子座流星雨源(yuan)自小行星。

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雙子座流星雨什么時候出現?

雙(shuang)子(zi)座流星(xing)雨在每(mei)年(nian)的(de)12月13至14日左右出現(xian),最高時流量可以達到每(mei)小(xiao)時120顆(ke),且流量極大的(de)持續(xu)時間比(bi)較長。雙(shuang)子(zi)座流星(xing)雨源自小(xiao)行星(xing)1983 TB,該小(xiao)行星(xing)由IRAS衛星(xing)在1983年(nian)發現(xian),科學家判(pan)斷其(qi)可能是“燃盡”的(de)彗星(xing)遺(yi)骸。雙(shuang)子(zi)座流星(xing)雨輻射點(dian)位于雙(shuang)子(zi)座,是著名(ming)的(de)流星(xing)雨。...

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雙子座流星雨一般什么時候下?

一(yi)(yi)(yi)(yi)(yi)(yi)般(ban)認為(wei)(wei)雙(shuang)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)活動期(qi)(qi)從12月(yue)7日(ri)開(kai)始,2007年(nian)(nian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極(ji)大(da)(da)(da)在(zai)(zai)12月(yue)15日(ri)0時(shi)(shi)(shi)15分(fen)(北京時(shi)(shi)(shi)間),東(dong)亞應是(shi)全球(qiu)最(zui)(zui)佳(jia)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)觀(guan)測(ce)位(wei)置(zhi)。 不象獅(shi)(shi)(shi)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極(ji)大(da)(da)(da)持(chi)(chi)續(xu)很(hen)短,雙(shuang)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極(ji)大(da)(da)(da)期(qi)(qi)將(jiang)有(you)(you)(you)(you)(you)一(yi)(yi)(yi)(yi)(yi)(yi)天(tian),因此世(shi)界上(shang)任何(he)位(wei)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)觀(guan)測(ce)者(zhe)都有(you)(you)(you)(you)(you)機會看(kan)到(dao)極(ji)大(da)(da)(da)。極(ji)大(da)(da)(da)時(shi)(shi)(shi)每(mei)(mei)分(fen)鐘(zhong)有(you)(you)(you)(you)(you)兩(liang)顆(ke)(ke)(ke)群(qun)(qun)(qun)內(nei)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。 很(hen)多熟悉的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)非(fei)常(chang)古老(lao),如(ru)英(ying)仙和(he)獅(shi)(shi)(shi)子(zi)(zi)(zi)(zi)。但(dan)雙(shuang)子(zi)(zi)(zi)(zi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)卻(que)(que)很(hen)年(nian)(nian)輕,19世(shi)紀(ji)中葉才出現(xian)(xian),而(er)且(qie)一(yi)(yi)(yi)(yi)(yi)(yi)開(kai)始時(shi)(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量較低,每(mei)(mei)小(xiao)(xiao)時(shi)(shi)(shi)有(you)(you)(you)(you)(you)10-20顆(ke)(ke)(ke)。從那以(yi)后,每(mei)(mei)年(nian)(nian)它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量都在(zai)(zai)增加(jia),目前(qian)已成為(wei)(wei)每(mei)(mei)年(nian)(nian)主(zhu)要的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)了(le)。1998年(nian)(nian)人(ren)(ren)們(men)(men)(men)觀(guan)測(ce)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)雙(shuang)子(zi)(zi)(zi)(zi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)達(da)到(dao)每(mei)(mei)小(xiao)(xiao)時(shi)(shi)(shi)ZHR=140顆(ke)(ke)(ke)。在(zai)(zai)極(ji)大(da)(da)(da)時(shi)(shi)(shi),觀(guan)測(ce)條(tiao)(tiao)件不錯(cuo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)觀(guan)測(ce)者(zhe)可以(yi)看(kan)到(dao)比(bi)較多的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。 自從1862年(nian)(nian)人(ren)(ren)們(men)(men)(men)注意到(dao)雙(shuang)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)后,就一(yi)(yi)(yi)(yi)(yi)(yi)直(zhi)在(zai)(zai)尋(xun)找它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)母(mu)(mu)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。直(zhi)到(dao)1983年(nian)(nian),衛星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)才發現(xian)(xian)了(le)與它(ta)(ta)有(you)(you)(you)(you)(you)相同(tong)軌道(dao)(dao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)顆(ke)(ke)(ke)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing),而(er)是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)石質(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。編號(hao) 3200 Phaon。這(zhe)個(ge)(ge)(ge)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)周期(qi)(qi)為(wei)(wei)1.4年(nian)(nian),軌道(dao)(dao)很(hen)扁,最(zui)(zui)近(jin)離(li)太(tai)陽(yang)(yang)0.15天(tian)文單位(wei)。1997年(nian)(nian)12月(yue)它(ta)(ta)經過(guo)(guo)地球(qiu)附(fu)近(jin)時(shi)(shi)(shi)距離(li)我們(men)(men)(men)只(zhi)有(you)(you)(you)(you)(you)0.31天(tian)文單位(wei)。 人(ren)(ren)們(men)(men)(men)一(yi)(yi)(yi)(yi)(yi)(yi)直(zhi)在(zai)(zai)爭論Phaon到(dao)底(di)是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)還是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)光譜(pu)看(kan)上(shang)去(qu)象石質(zhi)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing),但(dan)軌道(dao)(dao)卻(que)(que)很(hen)象彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。它(ta)(ta)經過(guo)(guo)太(tai)陽(yang)(yang)旁時(shi)(shi)(shi)沒有(you)(you)(you)(you)(you)出現(xian)(xian)彗(hui)(hui)(hui)(hui)尾,但(dan)卻(que)(que)有(you)(you)(you)(you)(you)碎(sui)塊產(chan)生(sheng)(sheng),形成了(le)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)。通(tong)過(guo)(guo)分(fen)析雙(shuang)子(zi)(zi)(zi)(zi)火(huo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)照片,科學(xue)家(jia)們(men)(men)(men)估計出雙(shuang)子(zi)(zi)(zi)(zi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)物質(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密(mi)度為(wei)(wei)1-2m/cc,比(bi)標準的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)3 gm/cc的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密(mi)度要低,但(dan)卻(que)(que)比(bi)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)0.3 gm/cc的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密(mi)度大(da)(da)(da)幾倍。有(you)(you)(you)(you)(you)人(ren)(ren)認為(wei)(wei)Phaon是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)耗盡的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)或休眠的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing),外(wai)(wai)表面積聚(ju)了(le)厚(hou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)際塵埃。因此它(ta)(ta)會有(you)(you)(you)(you)(you)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)外(wai)(wai)表,卻(que)(que)有(you)(you)(you)(you)(you)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)內(nei)核。 也許(xu)Phaon的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)謎要等以(yi)后空間探索(suo)來(lai)揭(jie)開(kai),還是(shi)讓我們(men)(men)(men)盡情欣賞它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)吧一(yi)(yi)(yi)(yi)(yi)(yi)般(ban)認為(wei)(wei)雙(shuang)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)活動期(qi)(qi)從12月(yue)7日(ri)開(kai)始,2007年(nian)(nian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極(ji)大(da)(da)(da)在(zai)(zai)12月(yue)15日(ri)0時(shi)(shi)(shi)15分(fen)(北京時(shi)(shi)(shi)間),東(dong)亞應是(shi)全球(qiu)最(zui)(zui)佳(jia)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)觀(guan)測(ce)位(wei)置(zhi)。 不象獅(shi)(shi)(shi)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極(ji)大(da)(da)(da)持(chi)(chi)續(xu)很(hen)短,雙(shuang)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極(ji)大(da)(da)(da)期(qi)(qi)將(jiang)有(you)(you)(you)(you)(you)一(yi)(yi)(yi)(yi)(yi)(yi)天(tian),因此世(shi)界上(shang)任何(he)位(wei)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)觀(guan)測(ce)者(zhe)都有(you)(you)(you)(you)(you)機會看(kan)到(dao)極(ji)大(da)(da)(da)。極(ji)大(da)(da)(da)時(shi)(shi)(shi)每(mei)(mei)分(fen)鐘(zhong)有(you)(you)(you)(you)(you)兩(liang)顆(ke)(ke)(ke)群(qun)(qun)(qun)內(nei)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。 很(hen)多熟悉的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)非(fei)常(chang)古老(lao),如(ru)英(ying)仙和(he)獅(shi)(shi)(shi)子(zi)(zi)(zi)(zi)。但(dan)雙(shuang)子(zi)(zi)(zi)(zi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)卻(que)(que)很(hen)年(nian)(nian)輕,19世(shi)紀(ji)中葉才出現(xian)(xian),而(er)且(qie)一(yi)(yi)(yi)(yi)(yi)(yi)開(kai)始時(shi)(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量較低,每(mei)(mei)小(xiao)(xiao)時(shi)(shi)(shi)有(you)(you)(you)(you)(you)10-20顆(ke)(ke)(ke)。從那以(yi)后,每(mei)(mei)年(nian)(nian)它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量都在(zai)(zai)增加(jia),目前(qian)已成為(wei)(wei)每(mei)(mei)年(nian)(nian)主(zhu)要的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)了(le)。1998年(nian)(nian)人(ren)(ren)們(men)(men)(men)觀(guan)測(ce)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)雙(shuang)子(zi)(zi)(zi)(zi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)達(da)到(dao)每(mei)(mei)小(xiao)(xiao)時(shi)(shi)(shi)ZHR=140顆(ke)(ke)(ke)。在(zai)(zai)極(ji)大(da)(da)(da)時(shi)(shi)(shi),觀(guan)測(ce)條(tiao)(tiao)件不錯(cuo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)觀(guan)測(ce)者(zhe)可以(yi)看(kan)到(dao)比(bi)較多的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。 自從1862年(nian)(nian)人(ren)(ren)們(men)(men)(men)注意到(dao)雙(shuang)子(zi)(zi)(zi)(zi)座(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)群(qun)(qun)(qun)后,就一(yi)(yi)(yi)(yi)(yi)(yi)直(zhi)在(zai)(zai)尋(xun)找它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)母(mu)(mu)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。直(zhi)到(dao)1983年(nian)(nian),衛星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)才發現(xian)(xian)了(le)與它(ta)(ta)有(you)(you)(you)(you)(you)相同(tong)軌道(dao)(dao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)顆(ke)(ke)(ke)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing),而(er)是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)石質(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。編號(hao) 3200 Phaon。這(zhe)個(ge)(ge)(ge)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)周期(qi)(qi)為(wei)(wei)1.4年(nian)(nian),軌道(dao)(dao)很(hen)扁,最(zui)(zui)近(jin)離(li)太(tai)陽(yang)(yang)0.15天(tian)文單位(wei)。1997年(nian)(nian)12月(yue)它(ta)(ta)經過(guo)(guo)地球(qiu)附(fu)近(jin)時(shi)(shi)(shi)距離(li)我們(men)(men)(men)只(zhi)有(you)(you)(you)(you)(you)0.31天(tian)文單位(wei)。 人(ren)(ren)們(men)(men)(men)一(yi)(yi)(yi)(yi)(yi)(yi)直(zhi)在(zai)(zai)爭論Phaon到(dao)底(di)是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)還是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)光譜(pu)看(kan)上(shang)去(qu)象石質(zhi)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing),但(dan)軌道(dao)(dao)卻(que)(que)很(hen)象彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)。它(ta)(ta)經過(guo)(guo)太(tai)陽(yang)(yang)旁時(shi)(shi)(shi)沒有(you)(you)(you)(you)(you)出現(xian)(xian)彗(hui)(hui)(hui)(hui)尾,但(dan)卻(que)(que)有(you)(you)(you)(you)(you)碎(sui)塊產(chan)生(sheng)(sheng),形成了(le)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)。通(tong)過(guo)(guo)分(fen)析雙(shuang)子(zi)(zi)(zi)(zi)火(huo)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)照片,科學(xue)家(jia)們(men)(men)(men)估計出雙(shuang)子(zi)(zi)(zi)(zi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)物質(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密(mi)度為(wei)(wei)1-2m/cc,比(bi)標準的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)3 gm/cc的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密(mi)度要低,但(dan)卻(que)(que)比(bi)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)0.3 gm/cc的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密(mi)度大(da)(da)(da)幾倍。有(you)(you)(you)(you)(you)人(ren)(ren)認為(wei)(wei)Phaon是(shi)一(yi)(yi)(yi)(yi)(yi)(yi)個(ge)(ge)(ge)耗盡的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)或休眠的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing),外(wai)(wai)表面積聚(ju)了(le)厚(hou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)際塵埃。因此它(ta)(ta)會有(you)(you)(you)(you)(you)小(xiao)(xiao)行(xing)(xing)(xing)(xing)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)外(wai)(wai)表,卻(que)(que)有(you)(you)(you)(you)(you)彗(hui)(hui)(hui)(hui)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)內(nei)核。 也許(xu)Phaon的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)謎要等以(yi)后空間探索(suo)來(lai)揭(jie)開(kai),還是(shi)讓我們(men)(men)(men)盡情欣賞它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)星(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)雨(yu)(yu)(yu)(yu)吧...

152

雙子座流星雨什么時候出現?

極大值已經過了 不過在12.7~12.22雙子座方向出來的流星還是要比平常多的,圖片//news.cnnb.com.cn/system/2010/12/15/006781268.shtml可以看一下
視頻 看一下 //news.qq.com/a/20101215/000544.htm繼(ji)續保持觀測熱(re)情哈(ha) 中國的天文(wen)愛好者(zhe)還(huan)是不(bu)多啊,咱都(dou)要一起努力(li)了...

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下一次的雙子座流星雨會在什麼時候?

明年同樣的時間就有。
因為流星群的運行(xing)軌(gui)道是固定的,而地(di)球每年(nian)都會在相同時間來(lai)到同一(yi)個地(di)方,所以每次(ci)都會遇(yu)上(shang)同一(yi)個流星雨。...

17349

流星雨多長時間有一次

最近一次是在12月13到14日之間
雙子座流星雨將于14日達到極盛
,在理想的天空條件下,每小時的理論天頂流星數在120顆左右。只要天氣晴好,
公眾整夜都有可能看到流星劃過清冽的冬夜星空。
這次的雙子座流星雨的“看點”在天黑后不久就會來臨,“等晚間的大幕一拉開,愛好者就能看到雙子座流星雨了。”
專家提醒公眾,
觀賞雙子座流星雨其實非常簡單,只要找一空曠地點就行,無需登高,觀賞視野鎖定在天頂附近即可。不過在隆冬之夜,
露天觀測(ce),一定要注意(yi)保暖。...

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