Na

Oya Ishusho. Bya ni Buri gihe ku i; Amahinduka ni Bya. , Guhagarara na Tangira & vendorShortName;.

Bya i ni Buri gihe in. ni Ubwoko Bya Reba.

Kureba

OYA Ukwezi: Icyatsi ku. Icyo ari cyo cyose, Rimwe Bya i ni ku i na i Ikindi ni Ikigina, Nka & Umunsi na.

i, Twebwe Bya:

• Ukwezi: i ni hagati na i. Bivuye, Twebwe.
• Itangira: Twebwe Bya i.
• Ukwezi: ni hagati i na i. i.
• Iheruka:, i Ikindi.

i, i Ibumoso: Ishusho Hasi ku na i Kuva: hejuru, Na: i Bidakora Kuri i Ibumoso:. Iburyo: Ishusho Kuva:. i na Guhindura…

i, na Umurongo: Hejuru:

• A Izuba Ryari: i Igicucu ku Ku Gishya.
• A Izuba Ryari: Igicucu ku i Ku Byuzuye.

Gusobanukirwa

The Moon goes once around Earth, measured against the stars, in 27.3 days (the sidereal month). But the phases repeat every 29.5 days (the synodic month). i Itandukaniro? While the Moon goes around Earth, Earth moves about 1/12 of the way around the Sun. Birenzeho iminsi Kuri Hejuru Na: i Gishya Iy’ ibusamo.

Bya i ku i Imfuruka hagati i na i Nka Kuva:, i Ihindurangano:

Ihindurangano	Icyiciro	Icyiciro
0°	Ukwezi	0%
90°	Itangira	50%
180°	Ukwezi	100%
270°	Iheruka	50%

i in i Ubwato Nka i, Twebwe Kubona A Gishya na A Cyuzuye. But the Moon’s orbit is tilted by about 5.1 degrees. i A hejuru Cyangwa munsi i - Umurongo:, na.

Kabiri Utudomo i Ubwato bw’ indege Utudomo. Ryari: A Gishya Cyangwa Cyuzuye Kuri A Idosiye. in Kabiri “Igihe cy’ izuba” Umwaka, Bigyanye ukwezi:.

Umunyeshuri

k Kuva: i Imfuruka i (i - - Imfuruka):

k = (1. i) / 2

Because the Sun is about 390 times farther away than the Moon, i ≈ 180° − elongation. i Na: Urutonde (,. 48.4), which corrects the mean elongation for the main periodic terms of the Moon’s and the Sun’s orbits. Gishya na Cyuzuye Kuri Mo Imbere A ISAHA Bya i, ya:.

The synodic month follows from the two angular speeds: 1/P_syn = 1/P_sid − 1/P_year = 1/27.3217 − 1/365.256, giving 29.531 days.

ni ku i Bya Ubugari: , Imfuruka Kuva: i. Meeus gives a quick screening rule: at a new or full Moon, if |sin F| > 0.36 (F more than about 21° from a node), there is no eclipse. iyi Igerageza. ni A, OYA A Bya i Ubwoko Cyangwa ni Kigaragara: i Intera, Igicucu Imiterere na Birenzeho Imyanya.

OYA Byuzuye. They drift backwards around the ecliptic once every 18.6 years, which is why eclipse seasons arrive about 19 days earlier each year, and part of why eclipses repeat in the famous 18-year saros cycle.