ECLIPSES

ANALYZE THE PARTS OF AN ECLIPSEEXPLAIN HOW ECLIPSES OCCURDIFFERENTIATE BETWEEN SOLAR AND LUNAR ECLIPSE

EclipsesEclipses

-Occurs when a shadow makes the Sun or the -Occurs when a shadow makes the Sun or the Moon seem to grow dark.Moon seem to grow dark.

2 TYPES OF ECLIPSES:

• SOLAR ECLIPSE• LUNAR ECLIPSE

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

position.– Only a small number of

people can see a solar eclipse.

– Occurs during the day.

Recent Solar Eclipse

• September 13, 2015, a partial eclipse that was visible in Africa and Antarctica.

Types of Solar Eclipses:

1. A partial solar eclipse occurs when only part of the Sun is covered by the Moon which appears to take a “bite” out of the Sun.

Types of Solar Eclipses:

2. Annular eclipse occurs when the Sun’s center is covered by the moon , leaving its edges left uncovered, producing a ring (or annulus) of the Sun around its edges.

Types of Solar Eclipses:

3. A total solar eclipse takes place when the Sun becomes completely covered by the moon.

Types of Solar Eclipses:

4. A hybrid eclipse is one which is seen as annular by observers in one part of the Earth, and at the same time, is seen as a total eclipse by others in another part of the Earth.

• https://youtu.be/HrloqdXrzN4

SOLAR ECLIPSE

• There are two parts to the shadow.– Umbra- darkest part– Penumbra- lighter part

• Those people standing in the umbra see a total solar eclipse.

• Those people in the penumbra see a partial solar eclipse.

http://www.classzone.com/books/earth_science/terc/content/visualizations/es2505/es2505page01.cfm?chapter_no=visualization - Solar Eclipse Animation

FUTURE SOLAR ECLIPSES• Total solar eclipse -Indonesia including Sumatra,

Borneo, and Sulawesi, and from locations in the Pacific Ocean.

• Northern and eastern Australia, in South Asia, and in East Asia will be able to see a partial eclipse.

• The eclipse will begin at 23:19 UTC on March 8, 2016, and its maximum point will take place at 01:59 on March 9, 2016. Totality will last for 4 minutes and 9 seconds.

Future Solar Eclipses

• March 9, 2016. -Asia and Australia. • September 1, 2016 Africa and parts of the Indian

Ocean. • February 26, 2017 South America, Africa and

Antarctica. • The next solar eclipse that can be seen in the

United States and North America will be on August 21, 2017.

LUNAR ECLIPSE

• Lunar eclipse- caused by the earth’s shadow covering the moon.– Moon is in a full moon

position.– Large numbers of people

can see.– Occurs at night.

LUNAR ECLIPSE

• There are two parts to the shadow- umbra and penumbra.– When the moon is in

the umbra a total lunar eclipse occurs.

– When the moon is in the penumbra a partial lunar eclipse occurs.

3 Types of Lunar Eclipses

• Total Lunar Eclipse-Earth’s full (umbral) shadow falls on the moon.

• Partial Lunar Eclipse-the sun, Earth and moon are not quite perfectly aligned, and Earth’s shadow appears to take a bite out of the moon.

• Penumbral Lunar Eclipse-the moon is in Earth’s faint outer (penumbral) shadow.

• https://youtu.be/fXPJIDrzo0w

LUNAR EXCLIPSE 2015

• September 27, 2015- US, Canada, and Central and South America, this rare Total Lunar Eclipse of a Supermoon.

• September 28, 2015- Europe, South/East Asia, Africa, the Arctic, and in the Pacific, Atlantic, and Indian Oceans it starts after midnight on.

• Also called a Blood Moon this eclipse lasted for about 1 hour and 12 minutes.

Future Lunar Eclipses

• March 23, 2016: Penumbral eclipse. Visible from Asia, Australia, Pacific Ocean, western Americas.

• Sept. 16, 2016: Penumbral eclipse. Visible from Europe, Africa, Asia, Australia, western Pacific Ocean

Blood Red Moon-

-Earth's atmosphere -Amount of dust and clouds in the moon’s atmosphere.-extra particles from a recent volcanic eruption on the moon.

http://www.classzone.com/books/earth_science/terc/content/visualizations/es2504/es2504page01.cfm?chapter_no=visualization - Lunar Eclipse Animation

Lunar Eclipse 2008

TRIVIA:

• A solar eclipse always occurs two weeks before or after a lunar eclipse.

• Lunar eclipses can occur up to three times a year.• Solar eclipses always occur between two and five

times a year. Often, these eclipses are unnoticed because they only pass over a small portion of the earth.

TRIVIA:

• The longest duration for a solar eclipse is seven and a half minutes.

• The element helium was discovered during a solar eclipse in 1868. French scientist Pierre Janssen noticed a peculiar yellow line, with a wavelength of 587.49 nanometers, while looking at the sun during an eclipse.

TRIVIA• On May 29, 1919, observations recorded during

a total eclipse of the sun helped prove Albert Einstein’s theory of relativity.

• On May 28, 585 B.C.E., an eclipse halted a battle between the Medes and the Lydians in present-day Turkey. Both sides believed the eclipse was a bad omen and immediately stopped fighting!