Announcements Comet SWAN! Vega West. Classifying the Stars 27 October 2006.
1 Stars Stars are very far away. The nearest star is over 270,000 AU away! ( Pluto is 39 AU from the Sun ) That is equal to 25 trillion miles! At this.
© 2004 Pearson Education Inc., publishing as Addison-Wesley Star Stuff.
STARS. WHAT ARE STARS? Stars are balls of hot gas. They are much larger than planets and much further from Earth. The sun is the closest star to Earth.
Week 8 Day 1 Announcements Grades First iClicker scores have posted (from 4 classes) Participation scores will be up to date after Spring Break Homework:
1 The Universe Chapter 20. 2 The Life and Death of Stars Stars are huge spheres of hot gases that emit light and other forms of electromagnetic radiation.
Solar System Planets, moons, dwarf planets and comets Moons Mercury Venus Earth Mars 00 12 Gas giants have many (usually small) moons.
Sizing up Stars. The sun is the star at the center of our solar system, and the one we know the most about. It is close enough to us that we can measure.
STARS. What is a Star? Huge, hot, bright balls of gas. –Example: our sun (medium-sized star that is not very hot); It is the closest star to us. X-ray.
Stars The Suns of Other Worlds. What are Stars? Giant Luminous Plasma. –Energized Gas Powered by fusion of hydrogen or heavier elements Stars are NOT.
Electromagnetic Spectrum. The Universe The Big Bang forms the universe….. The energy creates stars. Gravity pulls stars together into Galaxies. The stars.
Stars!
