Swiyimo swa n'weti swi vile xiyenge xa vutivi bya vanhu ku ringana tinkulungwane — ku suka eka tikhalendara ta khale ku ya eka tisayense ta masiku lawa. Kambe xana i yini hi ntiyiso lexi endlaka leswaku n'weti wu cinca xiyimo, na hikwalaho ka yini wu famba hi xiyenge xa masiku ya 29.53?
Xana Swiyimo swa N'weti i Yini?
Swiyimo swa n'weti swi yentisiwa hikwalaho ka ndlela leyi N'weti yi langutekaka hakona hi ku vonakala hi dyambu loko yi famba-famba eka Misava. N'weti a yi humesi ku vonakala ka yona — yi anamisela ku vonakala ka Dyambu. Loko yi famba-famba hi xiyenge xa yona xa masiku ya 29.53, hi vona tinxaka to hambana ta xivandla xa yona lexi vonakalisiweke.
Swi biha ku xiya leswaku swiyimo a swi yentisiwi hi ndzhuti wa Misava (sweswo hi eclipses). Ematshan'wini ya sweswo, swi yentisiwa hi xikhongelo xa geometri exikarhi ka Dyambu, N'weti, na ndhawu ya hina ya ku vona eka Misava.
Swiyimo swa 8
Xiyenge xa n'weti xi na swiyimo swa 8 leswi tiviwaka:
1. N'weti Wuntshwa — N'weti yi ri exikarhi ka Misava na Dyambu, xivandla lexi langutaka Misava a xi vonakalisiwanga. N'weti a yi vonaki.
2. Waxing Crescent — Xipalha xitsongo xa ku vonakala xi vonaka eka tlhelo ra xinene (eka Southern Hemisphere, ra ximatsi). Rito ra "waxing" ri vula "ku kula."
3. Quarter yo Sungula — Hafu ya xivandla xa N'weti lexi langutaka Misava xi vonakalisiwile. Yi vitaniwa "quarter" hikuva N'weti yi fambile quarter ya xiyenge xa yona.
4. Waxing Gibbous — Ku tlula hafu ya N'weti yi vonakalisiwile, kambe a yi si tala. "Gibbous" yi huma eka rito ra Latin leri vulaka "ku goveka."
5. N'weti lowu Taleke — Xivandla hinkwaxo xa N'weti lexi langutaka Misava xi vonakalisiwile. N'weti na Dyambu swi ri eka matlhelo yo hambanyana ya Misava.
6. Waning Gibbous — Ku vonakala ku sungula ku hunguta endzhaku ka n'weti lowu taleke. "Waning" yi vula "ku hunguta."
7. Quarter yo Hetelela — Hafu ya N'weti yi vonakalisiwile nakambe, kambe tlhelo ro hambanyana ku ri na eka quarter yo sungula.
8. Waning Crescent — Xipalha xitsongo ntsena lexi saleke xa ku vonakala eku heleleni ka xiyenge, eku sunguleni ka xiyenge xo sungula.
N'hweti ya Synodic
Nkarhi lowu N'weti yi wu tekaka ku hetisa xiyenge xin'we xo helela wu vitaniwa n'hweti ya synodic — xibalo xa masiku ya 29.53058770576. Leswi swi leha ku tlula n'hweti ya sidereal (masiku ya 27.32) hikuva loko N'weti yi famba-famba eka Misava, Misava yi fambile eka orbit ya yona ya dyambu, kutani N'weti yi fanele yi famba xitsongo ku tlula ku tlhelela eka xiyimo xin'we.
Ku leha ka n'hweti ya synodic ku cinca hi swintsongo hikwalaho ka swikombiso swa gravitational — ku suka eka masiku ya 29.18 ku ya eka 29.93. Mpimo wa masiku ya 29.53 wu tirhisiwa swinene eka tinhlerero to tala.
Hikwalaho ka Yini Swiyimo Swi Biha
Ku twisisa swiyimo swa n'weti ku na matirhiselo ya xiviri:
• Tikhalendara: Tikhalendara to tala ta khale ti seketeriwe eka xiyenge xa n'weti, ku katsa tikhalendara ta Vuislamu na Vuyuda • Vurimi: Varimi van'wana va ha landzela swiyimo swa n'weti ku byala na ku tshovela • Ku languta tinyeleti: Ku tiva nkarhi lowu n'weti wu talaka wu pfuna ku pulana vusiku byo languta • Vulavisisi bya xivandla: Mintirho ya n'weti yi fanele yi tekela enhlokweni xiyimo xa ku vonakala eka tindhawu ta ku tsama
Swiyimo swa N'weti na Nkarhi wa N'weti
Eka moontimenow.com, hi tirhisa algorithm ya Meeus ku hlera xiyimo xa n'weti loku kongomekaka eka nkarhi wihi na wihi. Hi kombisa ku vonakala ka nkarhi wa xiviri, xiyimo, na siku ra xiyenge. Xiyimo xa n'weti i xiyenge xa nkoka xa ku twisisa nkarhi wa n'weti — xin'wana na xin'wana xa swiyimo swa 8 xi kombela xiyenge xo kongomeka xa n'hweti ya synodic ya masiku ya 29.53.