Tides and Eclipses, Lecture notes of Astronomy

Download Tides and Eclipses and more Lecture notes Astronomy in PDF only on Docsity! Tides and Eclipses Ph mae me et) ECE mC teem melt ae Cl ee ee (elem) sunlight normally reflected by the Moon. Some sunlight is bent through Earth's atmosphere, typically allowing the Moon a coppery glow. This ET Te et Rt tm me mel med ra SPACE.com Graphic / Robert Roy Britt MOON'S ORBIT eae O Dd ee ed ee eee Tides • The tides are the rising and falling of the ocean surface as a result of the gravitational pull of the moon and the Sun on the earth. • The Moon plays a bigger role than the Sun because it is closer. Spring Tides • Sun, earth and moon are lined up. • Higher high tide, Lower low tide. Regular Tide Level Tide Level during Spring Tides Neap Tides • High tide is lower than normal, and low tide is higher than normal. There is less difference between the level of the tides. Regular High tide level High Tide level during neap tides Occurrence of Neap and Spring Tides • Spring tides occur when sun, moon and earth are lined up: Full Moon and New Moon. Neap Tides occur when the sun and moon pull in opposite directions: First Quarter and Last Quarter. Solar Eclipse Donncha 0 Cacimh, heepifinphotos.orgf Lunar Eclipse • Occurs when the moon is a Full Moon and the earth, moon and sun are exactly lined up. Sun Earth Moon Lunar Eclipse