Rana tsaka - lokacin da matsayi na rana a cikin sama shi ne mafi girma

Kallon lokacin da rana motsi na rãnã fadin sama, mutumin da tun lokacin kokarin samun wani bayani. Dangane da haske a wani lokaci a cikin kungiyar na kasuwanci da kuma rayuwar yau da kullum ba Yunƙurin zuwa hali ga shi a matsayin wani abin bautãwa. Myths game da karusar wuta, sa kullum hanyar fadin sama, nuna a cikin al'adu na al'ummai da yawa. Azancin, culmination na Maris - a daidai lokacin da rana ta matsayi a cikin sama shi ne mafi girma, shi ne tushen da lokaci.

rana tsaka

Abin da shi ne ba da rana revolves a kusa da Earth, amma a maimakon haka, ya bayyana ne kawai a tsakiyar XVI karni. Kuma daya daga cikin mutanen da suka bayyana wannan ra'ayin (samman), don haka ya tabbata cewa shi gudanar counter ga bayyane - cewa za a iya lura, a kullum cewa prefaced ta bazawa na kalmomi na heliocentric tsarin na ta bayyana Wauta.

Yanzu da dalibi ya sani cewa a gaskiya da motsi na da hasken rana faifai a cikin sama - ƙasã ta juyawa haifar kusa ta axis, cewa daya cikakken juyin juya halin na duniya tamu sa kowace rana, cewa matsayi na rãnã sama sararin sama a kowace lokaci ya dogara ba kawai a kan kwana na juyawa zuwa luminary. An rinjayi da matsayi shagaltar da ta Duniya a lokacin a shekara-dogon lura da shi a kusa da rana. Winter a arewacin yammancin duniya na mu star yakan tsakar rana ƙananan fiye da a lokacin rani.

Zenith

Domin a daidai ƙayyade lokacin da matsayi na rana a cikin sama shi ne mafi girma, tana da muhimmanci a fahimta, kamar yadda aka auna da wannan matsayi. Idan tsororuwar da nassi daga cikin hasken rana faifai cibiyar da rana aka located kawai sama da kai (idan iyakacin duniya makale a cikin ƙasa tsaye, jẽfãwa ya zama inuwa sifili), yana nufin cewa 'yan kallon ne a kan ekweita.

A Arewa Hemisphere da Zenith batu - mafi girma a kwana na karkatar haskaka a sararin sama a lokacin da rana, ko da matsayi na rana da tsakar rana - canjawa zuwa arewa a kudancin yammancin duniya shi ne a cikin shakka daga cikin shekara canja zuwa ƙasa zuwa kudu. Babban dalilin shekara-shekara canje-canje a tsawo na rãnã sama sararin sama zuwa rana tsaka - axial karkatar da duniya da orbital jirgin sama. Shi ne m da kuma daidaita 23,5 °.

Hunturu da kuma bazara

Wannan shi ne saboda da gangare da canji na yanayi a duniya tamu. Reference maki a cikin m astronomical hunturu, ko bazara solstice ne batu. A Arewa Hemisphere, da bazara solstice - 21 da 22 ga watan Yuni. Cewa wannan rana, rana ne mafi girma a cikin sama. A kwana na abin da ya faru na hasken rana a kan surface na duniya shi ne irin abin da shi heats up mafi kyau. A hankali warmed up manyan jikin ruwa da kuma ƙasar da iska zazzabi da yistin. Northern Hemisphere a lokacin wannan lokaci ta cikin rana.

A cikin hunturu, 21 da 22 Disamba, zuwa arewa na ekweita da rana, sa'ad da rana ta matsayi a cikin sama shi ne mafi girma, shi lẽƙãwa a kan sararin sama a mafi tsawo, idan muka dauki canji a cikin wannan nuna alama a kan shekara. Our duniya ta surface yankin yayin da aka tura a cikin shugabanci na babban star hasken rana tsarin, samar da gwaggwabar riba da karami yawan m zafi. A kudancin yammancin duniya, duk abin da ya faru daidai gaban.

Gaskiya (astronomical) lokaci

Bayyanar da irin wannan lokaci kamar yadda raka'a shekara, wata kuma rana saboda da astronomical lura da shi ne kai tsaye dogara a kan hulda tsakanin guda zaune duniya da kuma tsakiyar star. Division cikin awa, minti da sakan ne sabani. Babban factor ga zargin kawai irin Figures - sexagesimal wanda ya gargajiya ga d ¯ a Babila - An haife akwai zamani lokaci raka'a.

A lokacin da elapses tsakanin daidai lokacin da matsayi na rana a cikin sama shi ne mafi girma - abin da ake kira Agogon - ba m ko'ina cikin shekara. Shakka wannan bambanci kai minti 30 da kuma bayyana elliptical siffar da kewayewa, a cikin abin da Earth motsa ko'ina cikin duniya. Idan amfani a yi na real lokaci, shi zai yi don ƙirƙirar wani Agogon da wani m hanya. Yanzu a zahiri zai yiwu ba, amma shi ne a cikin lokaci, a lokacin da high ainihin aiki tare da abubuwan dake faruwa a sassa daban daban na duniya, da irin wannan tsarin ne musamman m.

talakawan lokaci

Domin biya diyya bambanci a daya-shekara duration na astronomical rana, Masana ilmin gabatar da ake kira "rõwa rana". Wannan shi ne zalla msar tambayar ra'ayi wakiltar wani batu da cewa ma'anar da matsayi na mu haske a sararin sama, da cewa motsi a cikin kwanaki 365 a ko'ina. Sau biyu a shekara, da wuri daidai da cibiyar na rana. Wannan na faruwa a lokacin bazara da kuma kaka equinox.

Gabatarwa na "tsakiyar Sun" Ya kai ga yin amfani da mafi m in yi nufi lokaci, in ba haka ba ya kira yakin. Saboda haka, a kan rana, wasu fiye da kwanaki equinox, goma sha biyu yajin sa'o'i da rana ba ya nufin da lokaci na rana, sa'ad da rana ta wuri ne mafi girma. Don lissafa da irin wannan lokaci a cikin wani ƙunshi juzu'i na biyu, yi amfani da "Jadawalin lokaci", wanda rajista data tasowa daga Gwargwadon lura na musamman wuri.