Solar System to scale. NOTES: The Earth-Moon System The parallax of a feature on the moon over a night gave Ptolemy the distance to the moon in earth.

Slides:

Advertisements

Similar presentations

The Cycles of the Moon The phases of the moon The tides Lunar eclipses

Advertisements

The Sun – Earth - Moon System

Lesson 3 Reading Guide - KC

The Cycles of the Moon.

Geometry: Sun – Moon– Earth

Chapter 3: Cycles of the Sky.

Chapter 3 The Cycles of the Moon.

Celestial Sphere Stars seem to be on the inner surface of a sphere surrounding the Earth.

Chapter 3: Cycles of the Sky.

Observing the Moon and Eclipses Astronomy 311 Professor Lee Carkner Lecture 4.

Observing the Moon and Eclipses Astronomy 311 Professor Lee Carkner Lecture 4.

Slide 1 The Motion of the Planets The planets are orbiting the sun almost exactly in the plane of the Ecliptic. Jupiter Mars Earth Venus Mercury Saturn.

Eclipses. Shadows Solar Eclipse Requirements: –New Moon –In the shadow as it passes over your location.

Motions of the Sky 1. Seasons 2. Tides 3. Moon Orbit/Tidal Locking 5. Moon Phases 6. Lunar Eclipses 7. Solar Eclipses 8. Planet Retrograde Motion.

Note that the following lectures include animations and PowerPoint effects such as fly ins and transitions that require you to be in PowerPoint's Slide.

NATS From the Cosmos to Earth Our first exam will be next Tuesday, September 23 at the regular class time. We will have a review Thursday (Sept.

Seasons, Phases of the Moon and Eclipses Chapter 2.2 & 2.3.

 The lunar phases are caused by the changes in how much of the illuminated (sunlit) side of the moon faces Earth.  Half the moon is always illuminated!

Eclipses What is an eclipse? The total or partial obscuring of one celestial body by another. Eclipses occur when the moon’s orbit which is tilted becomes.

Solar and Lunar Eclipses. Eclipse: The total or partial obscuring of one celestial body by another… The obscuration can be either One celestial body blocking.

Eclipses. SOLAR ECLIPSES Solar Eclipse- caused by the moon making a small shadow on the Earth. –Moon crosses in front of the sun. –Moon is in a new moon.

Ch Movements of the Moon. From earth, moon appears to orbit the earth, but from space, earth and moon orbit each other as they go around the sun.

1 Eclipses What is an eclipse? –Any time one astronomical object casts a shadow on another we say that an eclipse is occurring. The Earth can cast a shadow.

Eclipses Lunar and Solar Eclipses. Sun and Moon have almost the same angular diameters Each subtend an angle ~ ½ degree Sun is 400 times larger than the.

Eclipses. -An amazing cosmic coincidence! When viewed from the surface of Earth, both the moon and sun appear to be about the same size. - A solar eclipse.

CHAPTER 3 Eclipses and the Motion of the Moon CHAPTER 3 Eclipses and the Motion of the Moon.

Earth-Moon System Class Notes Students will be able to describe the major characteristics of the Moon.  I. Major Characteristics of the Moon 

Eclipses. Two Types – Solar Eclipse – Lunar Eclipse Solar Eclipse – The moon blocks the earth’s view of the sun. Lunar Eclipse – The earth blocks the.

Eclipses and the Motion of the Moon

Solar Eclipse Umbra Umbra – Total Darkness Penumbra – partial darkness.

1 Eclipses - Understanding Shadows An eclipse occurs when one astronomical object casts a shadow on the other. Solar Eclipses – The Sun casts a shadow.

Note that the following lectures include animations and PowerPoint effects such as fly-ins and transitions that require you to be in PowerPoint's Slide.

Eclipses - Understanding Shadows

ASTR 111 – 003 Fall 2007 Lecture 02 Sep. 10, 2007 Introducing Astronomy (chap. 1-6) Introduction To Modern Astronomy I: Solar System Ch1: Astronomy and.

ASTR 111 – 003 Fall 2006 Lecture 03 Sep. 18, 2006 Introducing Astronomy (chap. 1-6) Introduction To Modern Astronomy II Ch1: Astronomy and the Universe.

Tides and Eclipses. JGtghttp:// JGtg.

Note that the following lectures include animations and PowerPoint effects such as fly ins and transitions that require you to be in PowerPoint's Slide.

1 Eclipses What is an eclipse? –Any time one astronomical object casts a shadow on another we say that an eclipse is occurring. The Earth can cast a shadow.

Eclipses. What is an eclipse? The partial or total blocking of one object in space by another When the moon or Earth casts a shadow on the other It can.

The Cycles of the Moon. In the preceding program, we saw how the sun dominates our sky and determines the seasons. The moon is not as bright as the sun,

SOLAR ECLIPSE One consequence of the Moon's orbit about the Earth is that the Moon can shadow the Sun's light as viewed from the Earth (2)

1 Earth Moon Sun Foldable Make a foldable with 6 flaps (5 cuts) All 24 bold words/phrases = vocab terms there are 2 pics and 1 paragraph I want you to.

Lesson 5.  The Earth is on a 23.5° tilt when compared to the Earth’s orbit around the sun. This tilt affects the daytime temperatures experienced by.

Lunar Motion & Eclipses. Lunar Phases Caused by Moon’s changing position around the Earth See dif. portions of the lit half of Moon Waxing phases: from.

What Causes Eclipse? The Earth and Moon cast shadows. When either passes through the other’s shadow, we have an eclipse. Penumbra is partially illuminated.

Why does the moon appear to change shape over a month?

Solar and Lunar Eclipses. What is an eclipse? An eclipse occurs any time something passes in front of the Sun, blocking its light. This can be the Earth.

Eclipse ! Hey! You’re blocking my light!. Eclipse Terminology Solar vs. lunar Solar vs. lunar Total, partial, annular Total, partial, annular Umbra, penumbra,

Total Solar Eclipse 14 November 2012 The Moon and Lunar Eclipses Astronomical Association of Queensland Science Teachers Association of.

Eclipses. Shadows Note the shadow differences with a small light source vs. a large light source.

2  Explain the conditions required for different types of lunar and solar eclipses.  Distinguish between different types of eclipses (partial, total,

Motions of the Moon, Phases and Eclipses (Ch 3)

Solar and Lunar Eclipses

Eclipses and Tides: Sun/Earth/Moon Relationships

Homework Set #2 8/30/17 Due 9/11/17 Chapter 3 Review Questions 1, 2, 9

Astronomy 04 The Solar System

Shadows—the Umbra and the Penumbra

Eclipses Solar and Lunar.

Solar and Lunar Eclipses

Tides and Eclipses I can describe the pattern of the tides.

Annular eclipse type of total eclipse ring around moon Moon at apogee.

Chapter 3 Cycles of the Moon.

Note that the following lectures include animations and PowerPoint effects such as fly ins and transitions that require you to be in PowerPoint's Slide.

Edward M. Murphy Space Science for Teachers 2005

Edward M. Murphy Space Science for Teachers 2005

Phases of the Moon The moon revolves around Earth once a month causing the phases of the moon The phases are caused by the position of the moon relative.

SHADOWS Are formed when an opaque object is placed in front of the path of light.

Presentation transcript:

Solar System to scale

NOTES: The Earth-Moon System The parallax of a feature on the moon over a night gave Ptolemy the distance to the moon in earth diameters (diagram on board). The following formula was then used to find to find the diameter of the moon. It can be used to find the diameter of any object. Diameter = Distance x Angular Diameter (in radians, 1 radian = 57.3 o ) The moon's orbit is not perfectly circular (overlay). Tidal force of the moon made the earth an oblate spheroid. Spring tides have a higher high tide caused by the alignment of earth, moon, and sun. Neap tides have a lower high tide, as the sun is at right angles to the moon's position. Eclipses: For either lunar or solar, the moon's orbit (tilted by 6o) must cross ecliptic plane at one of two positions called lunar nodes. In addition, for a lunar eclipse, the sun and moon are in opposition (full moon). For a solar eclipse, the moon is between the earth and sun (new moon). A lunar eclipse is the same everywhere on earth. A solar eclipse is total only on a 50 mile-wide swath across the earth. Thus lunar eclipses are more frequent in a given location than solar. (See overlay). A lunar eclipse always involves the whole moon but may be gray instead of totally dark. This is a penumbral eclipse. A solar eclipse is annular when moon is closer to earth. Total solar eclipse returns every 18.6 yrs (Saros cycle).

The parallax of a feature on the moon over a night gave Ptolemy the distance to the moon in earth diameters

The following formula was then used to find to find the diameter of the moon. It can be used to find the diameter of any object. Diameter = Distance x Angular Diameter (in radians, 1 radian = 57.3 o )

The moon's orbit is not perfectly circular. It is 42,000 km different in distance from perigee to apogee. Perigee Apogee

Tidal force of the moon made the earth an oblate spheroid. Spring tides have a higher high tide caused by the alignment Of earth, moon, and sun. Neap tides have a lower high tide, as the sun is at right angles to the moon's position.

Moon’s orbit is tilted and crosses ecliptic at lunar nodes. Moon must be near those points for solar OR lunar eclipse to occur.

Lunar eclipse varies with the region of shadow: Total—in umbra Partial—part in umbra and part in penumbra Penumbral—in penumbra only.

Total Lunar Eclipse: the red appearance is caused by red light refracted around the earth.

50 mi wide path of total shadow  Total eclipse

Annular (‘ring’) eclipse of sun: Occurs when the moon is farthest--near apogee.

Diamond Ring effect—solar eclipse

Eclipse path patterns: repeat in Saros cycle.

Hackpen Hill, near Broad Hinton, Wiltshire. Reported 4th July 1999 Crop Circle!