This powerpoint compiled by the Education Staff at the Lunar and Planetary Institute www.lpi.usra.edu Image from http://solarsystem.nasa.gov/multimedia/gallery/Earth_Moon.jpg This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, by NASAs Voyager 1 when it was 11.66 million km (7.25 million miles) from Earth. The moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic. Voyager 1 was directly above Mt. Everest (on the night side of the planet at 25 degrees north latitude) when the picture was taken.
Total Solar Eclipse showing the corona and a few prominences off the limb (in red). When the moon blocks the light from the bright solar photosphere, we can see the much dimmer, more subtle evidence of the corona.
Only after phases have been mastered should you try to teach the reason for eclipses; otherwise, students will often assume that the reason for the Moon’s phases is the Earth’s shadow. To understand why we have eclipses, we use the golfballs and blacklights, along with an embroidery hoop to model out the changing intersection of the Moon’s orbit with the ecliptic, as the Earth goes around the Sun.
Shadow of the moon on the Earth as observed from the MIR space station.
Diagram from Fred Espenak, may be found along with lots of good information at http://www.mreclipse.com/Special/SEprimer.html
Diagram by Fred Espenak and more information may be found at www.MrEclipse.com
This graphic shows the path of totality for different solar eclipses through 2025. Notice there are two solar eclipses that cross the United States (2017 and 2024).
Diagram from Fred Espenak, may be found along with information at http://www.mreclipse.com/Special/SEprimer.html
From http://sunearthday.nasa.gov/2006/multimedia/gal_010.php; photos taken by Fred Espenak
http://www.mreclipse.com/Special/LEprimer.html Additional details are at http://en.wikipedia.org/wiki/Lunar_eclipse
Images from Fred Espanak and may be found at http://www.mreclipse.com/LEphoto/LEgallery1/LEgallery1.html
Information at http://sunearth.gsfc.nasa.gov/eclipse/solar.html
" Here lie the bodies of Ho and Hi, Whose fate, though sad, is risible; Being slain because they could not spy Th' eclipse which was invisible. " Author unknown: Said to refer to the Chinese eclipse of 2136 BC or 2159 BC. " On the day of the new moon, in the month of Hiyar, the Sun was put to shame, and went down in the daytime, with Mars in attendance. " One of the earliest written records of an eclipse of the Sun, on 3 May 1375 BC, found in the city of Ugarit in Mesopotamia.(Reprinted, from Chasing the Shadow , copyright 1994 by Joel K Harris and Richard L Talcott , by permission of Kalmbach Publishing Co. " If the Sun at its rising is like a crescent and wears a crown like the Moon: the king wll capture his enemy's land; evil will leave the land, and (the land) will experience good . . . " Refers to a solar eclipse of 27 May 669 BC. Rasil the older, Babylonian scribe to the king. Quoted in Historical Eclipses and Earth's Rotation , by F Richard Stephenson, Cambridge University Press, 1997, page 125. " Nothing can be surprising any more or impossible or miraculous, now that Zeus, father of the Olympians has made night out of noonday, hiding the bright sunlight, and . . . fear has come upon mankind. After this, men can believe anything, expect anything. Don't any of you be surprised in future if land beasts change places with dolphins and go to live in their salty pastures, and get to like the sounding waves of the sea more than the land, while the dolphins prefer the mountains. " May refer to a total solar eclipse of 6 April 648 BC. Archilochus, Greek poet (c680-640 BC) Quoted in Historical Eclipses and Earth's Rotation , by F Richard Stephenson, Cambridge University Press, 1997, page 338. Partly quoted in Encyclopaedia Britannica CD 98 . ECLIPSE QUOTES