PPT-Apparent Motion of the Stars

Sample Exam Images from APOD TWAN What direction was the camera pointed What can you say about the location the image was taken from Comet and colorful tails were imaged from Home Observatory in Mackay Queensland Australia In what direction was the camera facing when the image was obtained. SPH3U. Newton’s work. The acceleration of gravity must be caused by a net force, according to Newton’s 2. nd. Law.. Every particle of matter in the universe exerts an attractive force on every other particle.. 10 Measuring . the Stars. Units of Chapter 10. The Solar Neighborhood. Luminosity and Apparent Brightness. Stellar Temperatures. Stellar Sizes. The . Hertzsprung. –Russell Diagram. Extending the Cosmic Distance Scale. Soprano I Hence  stars,  you  daz- zle but the sight,   you teach to Soprano II Hence  stars, \r \r \r Alto Hence  stars, hence   stars too  dim of light,  you  daz-  zle  b Key Ideas. Distance is the most important & most difficult quantity to measure in Astronomy. Method of Trigonometric Parallaxes. Direct geometric method of finding distances. Units of Cosmic Distance:. Exam on Monday. I’ll have a Mock exam to work on Friday. Solar Eclipse. Freds_excellent_eclipse.mpg. Solar Eclipses . Umbra. – region of total shadow. Penumbra. – region of partial shadow. Totality lasts only a few minutes!. Brightness and Distance. Concept -1 – Temperature. λ. max. (. metres. ) = . 2.90 x 10. -3 . m k. . T (Kelvin). λ. max. = . Peak black body wavelength. T = The star’s surface temperature in . How big are stars?. How far . away?. How . luminous?. How hot?. How old, and how much longer to . live?. C. hemical . composition?. How are they moving?. Are they isolated or in clusters?. 1. How Far Away are the Stars?. in Circular Motion (cont.). © 2015 Pearson Education, Inc.. Centrifugal Force?. If you are a passenger in a car that turns a corner quickly, it is the force of the car door, pushing inward toward the center of the curve, that causes you to turn the corner.. Chapter 17. How do stars differ? Is . the Sun typical?. Image . of Orion illustrates:. The huge number of stars. Colors. Interstellar . gas. How can we describe/classify stars. ?. Location. Temperature. PES 1000 – Physics in Everyday Life. Weight and Apparent Weight. Stationary weight: How do we sense weight while we stand motionless?. We sense the . pressure from the normal force . between our feet and the ground that is keeping us from falling through it.. Stars 1. Patterns of stars – constellations a. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are not 5-ESS1-1. Support an argument that differences in the apparent brightness of the sun compared to other stars is due to their relative distances from the Earth.. Step 1. Choose image: axolotl salamander. the . process of moving . or . changing . places . or position. Anything you do while moving is motion.. Fact: Speed is a major type of Motion. Determining motion. In order to determine motion you must know direction and speed. A . star is a massive ball of plasma that emits . light and electromagnetic energy . throughout the universe. . While . there is only one star in our solar system, there are billions upon billions of stars throughout our galaxy and exponentially more in the billions of galaxies in the universe.