Ilanga nenyanga endulo

Kulokhu, kokwazi yezinkanyezi izibalo ekhomba lapho ilanga lingakhona nganoma yisiphi isikhathi, ungakwazi nje, ngosizo lezi izilinganiso ukuphakama kwelanga, ukucacisa isikhundla iphuzu zenith nganoma yisiphi isikhathi ofuna; ngoba kubalulekile kuphela ukuba ithuluzi ngawo ungakwazi ukukala futhi acabangele ukuhamba iphuzu zenith kungakhathaliseki ukujikeleza umhlaba emhlabeni axis awo, isb. e. ukuqeda ithonya Ukujikeleza okubonakalayo svoda.Solntsa yasezulwini futhi Moon e Drevnem Umhlaba ...

Kuyaziwa ukuthi isikhundla izindikimba zasezulwini, kanye zenith futhi ezindaweni ezahlukene zomhlaba kunqunywa phezu sphere yasezulwini ncamashi ngendlela efanayo njengoba kunqunywa isikhundla amaphuzu ezahlukene zomhlaba, + okuwukuthi, enkabazwe kanye ne-longitude; latitude. Umugqa owehla nembulunga okuyi lokuqala longitude okuyinto ezibhekwa (enkabazwe), nguye sidlula isigxobo zezwe kanye iphuzu of ngesikhathi sokulingana kwemini nobusuku Vernal. Ngisho nasezikhathini zasendulo abantu base bazi ukuthi inyanga esibonakalisweni zezinkanyezi, futhi ngemvume ngamunye kuyisikhathi esithile, khona-ke eya sleduyushy uphawu zezinkanyezi, iNyanga e Aries, Moon e Cancer ....

Equatorial latitude ka yingasiphi esibhakabhakeni ubhekwa komncane kunabo arc ibanga ukusuka enkabazwe yasezulwini, kuyilapho latitude yezemvelo kwanoma iyiphi 'iphuzu umhlaba ebusweni kubhekwa igebe eliphakathi isiqondiso sezwe emaweni nge parallel indiza ngemva kwendiza yenkabazwe.

Ngenxa yalokho, ukubeka izibalo ezinyakazayo solar, kungenzeka nganoma isiphi isikhathi ukucacisa longitude enkabazwe kanye latitude kwelanga; yingakho esikhiqiza eshiwo ngenhla amabili wokulinganisa engamamitha ilanga usebenzisa elinesisindo, ukubonisa izinguquko iyunifomu ngokuphelele bhé zenith-latitude endaweni observation, kungenzeka ukunquma longitude enkabazwe kanye latitude ka-zenith okufunayo manje.

Kodwa ngesisekelo osekushiwo,-zenith bhé endaweni observation Kayisilutho ngaphandle le -latitude iphuzu. Equatorial longitude efanayo zenith akakabi yena uyakwazisa sokunquma esikhundleni komhlaba, ngoba kubhekwa singasuki kunoma isiphi Meridian ethile emhlabeni, futhi kusukela Meridian oshiwo ngenhla lokuqala sphere yasezulwini; mayelana nalesi zenith Meridian ngokuqhubekayo eshintsha isikhundla salo ngenxa komhlaba.

Ilanga nenyanga e Drevnem Umhlaba