Tape the worksheet on page 96 in your journal.. Agenda Today 1.Intro to Astronomy 2.Notes on page 96 3.Catch up Test Make Up Buget Vocab Download Solar.

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Presentation transcript:

Tape the worksheet on page 96 in your journal.

Agenda Today 1.Intro to Astronomy 2.Notes on page 96 3.Catch up Test Make Up Buget Vocab Download Solar System App on Chromebooks State Science Exam Next Month!

Advanced – Above Grade Level Proficient – At Grade Level Basic – Below Grade Level Below Basic – Far Below Grade Level State Science Exam Next Month!

3 Minute Countdown! Exit Slip 1.Budget Vocab & Sticky on Period Bin. 2.Pick up 3 pieces of trash 3.Cleanest rows with no trash will be dismissed 1 st.

Introduction to Galaxies

What are Galaxies? Galaxies are collections of: – STARS – GAS – DUST – DARK MATTER There are 3 main types of Galaxies

3 Main Types Irregular Spiral Elliptical

Types of Galaxies III. Irregulars Irregular galaxies lack any specific form and contain stars, gas and dust generally associated with a youth. The irregular galaxy at right is the Large Magellanic Cloud, a satellite of the Milky Way located about 180,000 light years from the sun. The LMC is about 60,000 light years across. The bright reddish feature in the upper right is the “Tarantula Nebula” a region of star formation in the LMC. (NOAO/AURA Photo)

Types of Galaxies I. Spirals Spiral galaxies are so-named because of the graceful shapes of arms emanating from a bright central nucleus. Spirals are classified according to how tightly or loosely wound the arms are, and it turns out that the brightness of the central nucleus is correlated to the tightness of the arm. The galaxies M 104 (below) and M 51 (right) respectively show tightly and loosely wounds. Notice the effects of dust in both galaxies. (NOAO/AURA Photos)

Types of Galaxies II. Ellipticals Elliptical galaxies lack spiral arms and dust and contain stars that are generally identified as being old. The elliptical galaxies M 32 (below) and M 110 (right) show varying degrees of ellipticity. (NOAO/AURA Photos)

Our Galaxy The Milky Way What type of Galaxy is it? Guess how many stars are in our galaxy?

Our Galaxy The Milky Way What type of Galaxy is it? Guess how many stars are in our galaxy? 300 to 400 Billion!

Our Sun Our Sun is a STAR STARS are huge hot burning balls of gas. Our sun is only 1 of 400 billion STARS in the Milky Way Galaxy. This is our Solar System

A zoom-in to a massive star forming region Jupiter M16 (Eagle) M17 (Horseshoe) M8 (Lagoon) Milky Way Hale-Bopp Zoom-in Picture credit: W. Keel

A zoom-in to a massive star forming region Eagle Nebula (M16) Picture credit: T.A. Rector & B.A. Wolpa

A zoom-in to a massive star forming region Eagle Nebula (M16) Picture Credit: J. Hester & P. Scowen

A zoom-in to a massive star forming region Eagle Nebula (M16) Picture Credit: J. Hester & P. Scowen

A zoom-in to a massive star forming region Picture Credit: J. Hester & P. Scowen Eagle Nebula (M16) size of our solar system