Fr.: mois anomalistique
The time interval of 27.554 551 days (27d 13h 18m 33.2s), on average, between two successive passages of the Moon through the → perigee of its orbit.
Anomalistic from → anomaly.
Pirâzamini from pirâzamin, → perigee.
mâh-e gâhšomâri, ~ gâhmâri
Fr.: mois du calendrier
One of the periods into which a calendar is divided, ordinarily 12, but in earlier systems 10 (the first Roman calendar under Romulus) or 13 (ancient Iranian calendar using a month intercalation).
mâh-e gowzahri (#), ~ gerehi (#)
Fr.: mois draconitique
The time interval between two successive passages of the Moon through its → ascending node, 27.212 220 days (27d 5h 5 m 35.8s). Draconic month is important for predicting → eclipses. Also called draconitic month, nodical month.
Draconic, adj. of dragon, → Draco, referring to a mythological dragon for the following reason. Since an eclipse occurs when the Earth, the Sun, and a node are aligned and moreover the Moon is situated near the node, it was believed that a dragon that resided in the node swallowed the Sun or the Moon. → month.
Mâh, → month.
behizak (#), mâh-e behizaki (#)
Fr.: mois embolismique
1) In several → lunisolar calendars, an
→ intercalary month employed to preserve a seasonal relationship
between the Lunar and Solar cycles. For example, in the
→ Hebrew calendar the extra month,
called Adar Alef, was inserted after Shvat
so that the month of Nissan (month of spring) does not begin in winter.
M.E. embolisme, from M.L. embolismus "intercalation," from Gk. emballein "to throw into, to insert," from em- "in" + ballein "to throw" (source of the medical term embolism "the obstruction (of an artery, etc.) by a clot of blood, bubble of air, etc."); → month.
Behizak, from Mid.Pers. vihezagig or vihezakik "movable," from vihezag "movement, progression," from vihez- "to move, progress;" mâh, → month.
Fr.: mois intercalaire
An intercalary month employed in some calendars to preserve a seasonal relationship between the Lunar and Solar cycles. → embolismic month.
Fr.: mois lunaire
The average time between successive new or full moons. Also called → synodic month, → lunation.
A period of time based on the revolution of the Moon around the Earth. Several types of months are defined: → anomalistic month; → draconic month; → sidereal month; → synodic month; → tropical month.
O.E. monað, from P.Gmc. *mænoth- (O.N. manaðr, M.Du. manet, Du. maand, O.H.G. manod, Ger. Monat, Goth. menoþs "month"), related to *mænon-, → moon.
Mâh and mâng in Pers. are variants of the same term, the dominant form being
mâh, while mâng (Av. from, see below) is used in classical literature
as well as in some dialects: Tabari, Kurd. mâng, Laki, Tâti, Taeši
Sangesari mung; Mid.Pers. mâh "moon, month;" O.Pers. māha-
"moon, month;" Av. māh- "month, moon," also māwngh-; cf.
Skt. mās- "moon, month;" Gk.
mene "moon," men "month;" L. mensis "month;"
O.C.S. meseci, Lith. menesis "moon, month;" O.Ir. mi,
Welsh mis, Bret. miz "month;"
O.E. mona; E. moon, month; Ger. Mond, Monat;
Du. maan; PIE base *me(n)ses- "moon, month."
mâh-e gerehi (#), ~ gowzahri (#)
Fr.: mois draconitique
The time interval between two successive passages of the Moon through its ascending node (27.212220 days, i.e., 27 days 5 hours 5 minutes 35.8 seconds). Nodical month is important for predicting eclipses. Also called → draconic month.
Nodical adj. of → node; → month.
Mâh, → month; gerehi, adj. of gereh, → node; gowzahri→ draconic month.
mâh-e axtari (#)
Fr.: mois sidéral
The time taken by the Moon to complete one → revolution around the Earth with respect to a background, → fixed star. The average time is 27.321 661 days (27d 7h 43m 11.5s). Same as → lunar sidereal orbital period.
Fr.: mois synodique
The interval of 29.530 588 days (29d 12h 44m 2.80s), on average, between two successive → new Moons. Same as → lunation.
Fr.: mois tropique
The average period of the revolution of the Moon about the Earth with respect to the → vernal equinox, a period of 27.321 582 days (27d 7h 43m 4.7s).
Mâh, → month; hamugâni, of or pertaining to hamugân, → equinox.