Earth & Moon “Eclipses” Eclipses Recognized by Early Greeks Only occur during a new or full moon Conditions usually will happen four times a year. Once a set of lunar or solar eclipses occurs, the next set will occur six months later. Lunar Eclipse DVD Clip Total Lunar Eclipse Occurs during a “full moon” phase Earth’s circular shadow moves slowly across the disk of the full moon When eclipsed, moon is completely within Earth’s shadow and appears as a copper disk. Can last up to four hours and is visible to people facing the moon. Solar Eclipse DVD Clip Total Solar Eclipse Occurs during a “new moon” phase Moon will slowly block the sun from view and the sky gets dark. Temperature will drop several degrees. Sun is blocked for a minimum of seven minutes and ONLY sun’s corona is visible. Dangerous to look directly at!!! Parts of an Eclipse Umbra – central, completely dark part of the shadow. Penumbra – portion of a shadow from which only part of the light source is blocked out.
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