Lunar Eclipse: The point at which the Sun, Earth and Moon are aligned with the Earth blocking out the Sun's light from the Moon, making the Moon seem invisible. Occurs during a Full Moon.

 

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Lunar Eclipse: An eclipse of the moon occurs when the earth is in a direct line between the sun and the moon. The moon does not have any light of its own, instead, it reflects the sun's light. During a lun . . . View Full Definition

Eclipse: The obscuring of one celestial body by another.

Lunar Time: Time based upon the rotation of the Earth relative to the Moon. See lunar day.

Lunar Tide: That part of the tide on the Earth due solely to the Moon as distinguished from that part due to the Sun.

Penumbral Eclipse: The term applied when the Moon passes through Earth's penumbra; the shadow does not obliterate the Moon form Earth's view but causes it to appear orangish or copper-colored.

Lunar Return Chart: A chart cast for the time the Moon returns to the exact degree, minute, and second it occupied at the moment of an individual's birth.

Solar Eclipse: An eclipse of the sun occurs when the moon is in a direct line between the sun and the earth, casting some of the earth's surface in its shadow. The moon's disk shaped outline appears to cov . . . View Full Definition

Semilunar Valve: A valve between each ventricle of the heart and the artery connected to that ventricle.

Sublunary: The area of the cosmos inside the orbit of the moon, including the earth. In medieval and Renaissance theology, this area was thought to be imperfect and subject to decay, death and mutabili . . . View Full Definition

Lunar Period: The time it takes the Moon to return to a particular point in the zodiac; the Moon's zodiacal period, a little less than twenty-seven days, eight hours. Also called a sidereal month and peri . . . View Full Definition