Post on 11-Dec-2015
Earth & Moon
Mr. SkirbstPhysical Science
Topic 28
Features of the Moon
Galileo Galilei (1609) first to observe moon through telescope
Features of the Moon
Galileo Galilei (1609) first to observe moon through telescope
He observed large, flat, dark areas and called them Maria (singular mare) – Latin for “sea”
Features of the Moon
Galileo Galilei (1609) first to observe moon through telescope
He observed large, flat, dark areas and called them Maria (singular mare) – Latin for “sea”
He observed light areas that were mountainous and called them highlands
Features of the Moon
Craters – circular features ranging from microscopic to hundreds of kilometers across
Most due to impacts of material from space, some result from volcanic activity
Most are on “far side” of moon
Features of the Moon
Rilles – long valley on moon’s surfaceCould be due to past volcanic activty
Hadley Rille visited by Apollo astronauts
Movement of the Moon
The moon orbits the Earth
Movement of the Moon
The moon orbits the EarthPerigee – closest to EarthApogee – farthest from Earth
Movement of the Moon
The moon orbits the EarthPerigee – closest to EarthApogee – farthest from EarthPeriod of Rotation = Period of Revolution* Same side always faces Earth *
Phases of the Moon
Apparent changes to the moon’s illumination due to its orbit around the Earth
Phases of the Moon
New Moon:
Phases of the Moon
Waxing Crescent:
Phases of the Moon
First Quarter:
Phases of the Moon
Waxing Gibbous:
Phases of the Moon
Full Moon:
Phases of the Moon
Waning Gibbous:
Phases of the Moon
Last Quarter:
Phases of the Moon
Waning Crescent:
Tides on Earth
Rise and fall of oceans due to pull of moon
High Tide:
Low Tide:
Tides on Earth
Spring Tide: Neap Tide:
Eclipses
Solar Eclipse:
Eclipses
Lunar Eclipse: