Solar Eclipses - Moore Public Schools

Solar Eclipses What exactly is a solar eclipse? What is an eclipse? What causes eclipses and why? How often do eclipses happen?

Phases of the Moon The Moon is a celestial body/natural satellite that orbits Earth The Moon does not produce its own light but reflects the Suns light

The Moon orbits Earth about every 29.5 days As it circles the Earth, the changing position of the Moon with respect to the Sun causes the moon to appear in different phases The Moons Two Shadows

A solar eclipse can only occur during New Moon phase If the Moons shadow happens to fall upon Earths surface during this time, there could be a portion of the Sun covered by the moon Even though a New Moon phase occurs every 29.5 days,

we dont have a monthly solar eclipse because the Moons orbit is tilted 5 degrees At least twice a year, the geometry lines up just right for an eclipse for part of Earth The Moons Two Shadows

The Moon has two different parts to its shadow 1) Penumbra faint outer shadow; partial solar eclipses visible 2) Umbra dark inner shadow; total solar eclipses visible When the penumbral shadow strikes Earth, we see a partial eclipse

Total Solar Eclipses If the Moons inner (umbral) shadow sweeps across Earth, a total eclipse can be seen The path the inner shadow moves across Earth is called the Path of Totality

The path is only about 100 miles wide To see a total eclipse, one must be inside the path Its very rare to see a total solar eclipse twice in one place Ex: Princeton, NJ had a total solar eclipse in 1478. Next one will be

2079! Totality The total phase of a solar eclipse is very brief, usually only a

few minutes During totality, the corona can be seen (ring around the Sun)

Annular Solar Eclipses Not every solar eclipse is a total eclipse Because of the elliptical (oval) shape of the Moons orbit, the Moon is sometimes too far away to completely cover the Sun in the sky When this happens, the Moon appears smaller and leaves a larger

ring around the edge. This type of eclipse is called an Annular Solar Eclipse Annularity can last as long as a dozen minutes Works Cited

"Espenak, Fred. Solar Eclipses for Beginners. MrEclipse.com, http://www.mreclipse.com/Special/SEprimer.html. Accessed 10 August 2017.

Recently Viewed Presentations

  • Lesson 1: Ventilation - GCSSD

    Lesson 1: Ventilation - GCSSD

    A side effect of positive pressure in the thoracic cavity is a decrease in size of the pulmonary arteries, which are the arteries that carry blood from the heart to the lungs. This causes less blood flow to the lungs...
  • Dartfish TV - warwickref.com

    Dartfish TV - warwickref.com

    Tagging of video done remotely using smart phone app. Benefits. Next day viewing of videos of matches by referee, coach, assessor. Analysis done by coaches either using software after event or using smartphone app. Sharing of video to wider audience...
  • CL-Partner Presentation - Internal Revenue Service

    CL-Partner Presentation - Internal Revenue Service

    Arial Verdana Wingdings Times New Roman Helvetica JansonText RomanSC Calibri CollabraLink Presentation Template 1_CollabraLink Presentation Template Slide 1 CollabraLink Technologies Corporate Overview CollabraLink Core Competencies CollabraLink Contract Vehicles and NAIC codes CollabraLink Federal client base CollabraLink's IRS Relevant ...
  • Accountability Update - Region 10 Education Service Center

    Accountability Update - Region 10 Education Service Center

    The 2013-14 TAPR will be released on the confidential Texas Education Agency Secure Environment (TEASE) Accountability website during the week of November 17. District and campus TAPR will be posted to the TEA public website during the first week of...
  • Economic risk of change - iiNet

    Economic risk of change - iiNet

    The Impact of Global Warming on Western Australia a presentation for CWA, 25 July 2007 Dr Ray Wills Manager, Sustainability Services, SMEC Chair, WA Sustainable Energy Association
  • Title Subtitle Date - APDCares

    Title Subtitle Date - APDCares

    The minimum number of pages is six (6) * Purchasing Plan - Page 1 Section A - Reason for Submitting Purchasing Plan (continued) This option is no longer available This area is to be completed by the consultant and area...
  • Reading Log Questions: - Richmond County School System

    Reading Log Questions: - Richmond County School System

    Hamlet? (Why THAT scene? Will it change or affect the play in any way?) ... No rhetorical questions. No non sequiturs (a question that doesn't naturally follow). ... Name some of the puns from this scene. What is the effect...
  • Mary Wollstonecraft (1759-1797)

    Mary Wollstonecraft (1759-1797)

    Wollstonecraft argues that the education of women has focused only on making them "alluring mistresses," and thus "the minds of women are enfeebled by false refinement," and "they are treated as a kind of subordinate beings, and not as part...