Nrịgo aka nri
Nrịgo aka nri (nke a na-akpọ RA ; akara α ) bụ ebe dị anya n'ụdị otu ebe a ụdị n'ụdị ụmụaka n'ụdị equator celestial site na ọmụmụ na March equinox ruo ( oge elekere ) nke ihe a na -ajụ n'elu mmetụta. [1] Mgbe eji ozi ya na mbelata, nhazi nke mbara igwe ndị a na-achọpụtapụta ebe isi dị na mbara igwe dị n'usoro nhazi nke equatorial.
[1]Okwu ochie, mgbago aka nri ( Àtụ:Language with name </link> [1] na-ezo aka na nrịgo elu, ma ọ bụ isi ihe dị na mbara igwe nke na-ebili na ihe ọ ala nke ịnọ dị ka a na. Ọ dị iche na nrịgo nke elu igwe, isi ihe dị na mbara igwe nke na-ebili na ihe ọ eligwe dị na mbara igwe dị ka. a na-ahụ site na ọtụtụ latitudes dị n'ụwa, ebe mbara igwe na-ahụ mbara igwe n'aṅa ihu .
. [2]Nrịgo aka nri bụ nke ndị na-eso na lonjitude terrestrial. Ma mgbago aka nri na lonjitude na-atụ site na ntụzịaka bụ isi (ebe efu) n'elu equator . A na- ndị nrịgo aka nri site na inwe na March equinox ya bụ ebe mbụ nke Aries, nke bụ ebe dị na mbara igwe ebe na-agafe na mbara igwe si n'ebe ndịda ruo n'ebe ugwu na March equinox ma dị. ngwa a na m ike Pisces . A na-atụ nrịgo aka nri na-aga n'ihu na-ahụ zuru oke site na nhazi nke ụwa na ọmụmụ dị na mbara igwe, nha nha, nha na-azụ n' ụmụaka ụmụaka.
- ↑ Lathrop (1821). A Compendious Treatise on the Use of Globes and Maps. Wells and Lilly and J.W. Burditt, Boston, 29, 39.
- ↑ Moulton (1916). An Introduction to Astronomy. Macmillan Co., New York, 125–126.