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Nrịgo aka nri

Shí Wikipedia, njikotá édémédé nke onyobulạ
Mg ago ziri ezi na mbelata ka a kwụsị n'ime oghere nke lug .  Isi usoro nke ahụ bụ March equinox, ọnụ na-arrịgo nke ecliptic (red) na mbara igwe (acha ọkụ ọkụ).  A na-atụ nrịgo aka nri n'ihu ndị na-eme atụmatụ ruo awa 24 n'ụdị equator celestial site na isi ụzọ.

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 .

.Mgbago aka nri (acha soro) na mbelata (akwụkwọ ndụ akwụkwọ ndụ) dị ka a na-ebupụta site na nrị mbara igwe
A na- ụzọ mbụ dị iche ebe a.  Akara a ♈︎ na-akara ntụzịaka March equinox .</br> Na-eche na ụbọchị nke afọ bụ March equinox: ọmụmụ na-edina n'ebe akụ isi awụ, nke akwụkwọ nke akwụkwọ ndụ akụ akara ga-egosi na ọ na-ebili n'ebe ọmụmụ n'  ihe dị ka etiti (Ụwa e si "n'elu" na-akpa na elekere anya).  Mgbe onye na-ekiri ya rutere akụ na-acha akwụkwọ ndụ akwụkwọ ndụ, chi ọbẹbọ ga-akarị ike (lee igwe na-acha ọkụ ọkụ Rayleigh na-agbasasị ) Ìhè ahụ ihe dị ka awa isii, tupu ya ada n'ebe  azụ azụ.  Mgbago ziri ezi nke ozi ahụ dị ihe dịka elekere 18. 18h nwanne na ọ bụ ihe ngosi oge Ma achị na na mbara igwe na-acha isi n'ụtụ.  Ọ bụrụ na 12 h RA, ndị ahụ ga-abụ ndị ozi niile nke March ka ọ na-azụ March equinox.  Ọ bụrụ na 6 h RA ndị ahụ ga-abụ oge ịkpọ nke March, na elu ya (meridian) na mgbede.

. [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.

  1. Lathrop (1821). A Compendious Treatise on the Use of Globes and Maps. Wells and Lilly and J.W. Burditt, Boston, 29, 39. 
  2. Moulton (1916). An Introduction to Astronomy. Macmillan Co., New York, 125–126. 








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