new moon - definition. What is new moon
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%ما هو (من)٪ 1 - تعريف

PHASE OF THE MOON
New Moon; New moon/details; Lunar conjunction; Moonless; Old Moon; Lunation Number; New moons; Newmoon; 🌚; 🌑; Lunation Cycle; New Moon day; No moon night
  • Earth's orbital plane]]) results in the revolution of the [[lunar nodes]] relative to the Earth. This causes an [[eclipse season]] approximately every six months, in which a [[solar eclipse]] can occur at the new moon phase.
  • Planetlight]], [[zodiacal light]], and [[starlight]] contribute a negligible amount of the total light that the lunar surface reflects.}}

new moon         
(new moons)
A new moon is the moon when it first appears as a thin curved shape at the start of its four-week cycle. The new moon is also the time of the month when the moon appears in this way.
...the pale crescent of a new moon...
The new moon was the occasion of festivals of rejoicing in Egypt.
N-COUNT: usu sing
new moon         
¦ noun
1. the phase of the moon when it first appears as a slender crescent.
2. Astronomy the time at which the moon is in conjunction with the sun and not visible from the earth.
New Moon (magazine)         
MAGAZINE
New Moon Magazine; New Moon Girls
New Moon Girls is a magazine created and written by and for girls ages 8 to 14. The magazine was founded in Duluth, Minnesota, United States and is now published in Richmond, California, on a quarterly basis by New Moon Girl Media.

ويكيبيديا

New moon

In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude. At this phase, the lunar disk is not visible to the naked eye, except when it is silhouetted against the Sun during a solar eclipse.

The original meaning of the term 'new moon', which is still sometimes used in calendrical, non-astronomical contexts, is the first visible crescent of the Moon after conjunction with the Sun. This thin waxing crescent is briefly and faintly visible as the Moon gets lower in the western sky after sunset. The precise time and even the date of the appearance of the new moon by this definition will be influenced by the geographical location of the observer. The first crescent marks the beginning of the month in the Islamic calendar and in some lunisolar calendars such as the Hebrew calendar. In the Chinese calendar, the beginning of the month is marked by the last visible crescent of a waning Moon.

The astronomical new moon occurs by definition at the moment of conjunction in ecliptical longitude with the Sun when the Moon is invisible from the Earth. This moment is unique and does not depend on location, and in certain circumstances, it coincides with a solar eclipse.

A lunation, or synodic month, is the time period from one new moon to the next. At the J2000.0 epoch, the average length of a lunation is 29.53059 days (or 29 days, 12 hours, 44 minutes, and 3 seconds). However, the length of any one synodic month can vary from 29.26 to 29.80 days (12.96 hours) due to the perturbing effects of the Sun's gravity on the Moon's eccentric orbit.

أمثلة من مجموعة نصية لـ٪ 1
1. But on the second day he could see the new moon and informed the Saudi scientific team under Abdullah Al–Dabbagh, present president of the Maaden Company, that he could see the new moon on the second.
2. During new Moon – when the side facing us is dark – the far side is lit completely.
3. This accounts for the two–day difference in sighting the new moon.
4. Venus will even cast a shadow during nights when there is a new Moon.
5. The Islamic month of Ramadan begins with the new moon in the coming days.