The Universe

• Link to this picture to focus

Link to the picture

The Milky Way

• Link to a diagram in spanish, summary about the universe– http://1.bp.blogspot.com/-izz5xv9uXOU/

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The Solar system

The Oort cloud

Halley comet

Hale Bopp comet

This picture shows the…?theory…

PTOLEMY

COPERNICUS

GALILEO

JOHANNES KEPLER

• He studied the movement of the planets

• There are three rules that describe the movement of the planets around the Sun.

• Primera Ley (1609): Los planetas se desplazan alrededor del Sol describiendo órbitas elípticas, estando el Sol situado en uno de los focos.

• Kepler nunca consiguió comprender el sentido último de tales de leyes.Isaac Newton (1643-1727) enunciaría su teoría de la Gravedad y la leyde la Gravitación Universal en 1685 ofreciendo así una explicación natural de las leyes de Kepler como consecuencia de la interacción (atracción) gravitacional que sufren los cuerpos.

Formación de una estrella

• http://www.astromia.com/universo/evolestrellas.htm

• http://waste.ideal.es/cosmos2.htm

• http://www.starneutron.com/2011/10/vida-y-muerte-de-las-estrellas-una-explicacion-sencilla/

The Sun

• What is it? – It is a star.

• Is it far or close to us?.– It is 150 million km away from us

• Is it hot or cold?– Very hot.

• What is it made of?– Hydrogen and helium

Stars

• They form when gases (hydrogen) are pulled together by gravitational forces.

• They are so hot that they emit light and heat.

• An enormous cloud of dust and gas, a nebula, surrounds the stars

• Video comparing sizes in the universe– http://www.starneutron.com/2013/03/

comparando-estrellas/

What units of measurement do astronomers use?

• Astronomical units

• Light-year.

• The distance light travels in one year. Light travels 300.00 km in one second

How do the planets move?

• Rotation

• Revolution

Homework• Choose a planet. Write this:

• The planet is……

• It is an (inner/outer) planet. It is made up mainly of (rock/gases)

• It is……..AU from the Sun

• It has a period of rotation of …..days

• It has a period of revolution of ….days.

• Other interesting things about it.

The great red spot of Jupiter

• The Moon is a satellite of…… which belongs to the planetary system called…..The star of this planetary systems is……It belongs a galaxy called…. This galaxy is part of the galaxy cluster called….

• The Earth rotates from West to East

What is the Hubble?

•  es un telescopio que orbita en el exterior de la atmósfera, en órbita circular alrededor de la Tierra a 593 km sobre el nivel del mar, con un período orbital entre 96 y 97 min. Denominado de esa forma en honor del astrónomo Edwin Hubble, fue puesto en órbita el 24 de abril de 1990

• Pictures taken by the hubble

• http://hubblesite.org/gallery/album/solar_system

• Pluto isn´t a planet anymore video

• The planets, funny video– http://www.youtube.com/watch?

v=zcY200C8rtA

What planet:• Has the most satellites?

• Is the smallest?

• Supports life?

• Is the farthest to the Sun?

• Is the closest to the Sun?

• Rotates in opposite direction?

• Is the largest (biggest)?

• Is best known for its rings?

Planet Distance from sun(AU)

Period of rotation

Period of revolution

Mercury 0.39 59 days 88 days

Venus 0.72 243 days 224.6 days

Earth 1.00 23 h 56 min 365 days

Mars 1.52 24h 37 min 1.88 years

Jupiter 5.20 9h 55 mins 11.86 years

Saturn 9.54 10h 40 min 29.46 years

Uranus 19.19 17h 14 min 84.07 years

Neptune 30.06 16h 7 mins 164,82 years