PPT-Constellations and Distances to Stars

What is a Constellation A specific group of stars Ancient people of many cultures connected groups of stars to form patterns like huge dottodot puzzles These patterns are known as constellations . Source. http://www.ducksters.com/science/physics/constellations.php. Key Concept. I can explain how astronomers . divide the night . sky and why this is important?. What is a constellation?. A constellation is a group of visible stars that form a pattern when viewed from Earth. The pattern they form may take the shape of an animal, a mythological creature, a man, a woman, or an inanimate object such as a microscope, a compass, or a crown.. 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.. Most of the gas in the inside of a star is hydrogen and its temperature is over 20 million degrees Fahrenheit. There is also helium, a gas that is formed when the hydrogen molecules join together.. 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:. Science 9. Using scientific notation. Distances in space are very large. We use scientific notation to represent very large and very small numbers. The first digit is between 1 and 9. This is called the base. B-V color index way of quantifying this - determining spectral class - using two different filters. one a blue (B) filter that only lets a narrow range of colors or wavelengths through centered on the blue colors, . Aug. 24 -- 10am class. Turn in HW 1 in the front of the room. If you didn’t get HW 1 on Monday, turn it in on Friday.. If you didn’t get the telescope lab on Monday, pick it up from Johanna.. Gautam “G” Kamath. FOCS 2017 Workshop: Frontiers in Distribution Testing. October 14, 2017. Jayadev. Acharya. Cornell. Constantinos. . Daskalakis. MIT. John Wright. MIT. Based on joint works with. The “. Cosmic Distance Ladder. ”. Visual. “. Parallax. ”. “. Binocular. Vision”…. Let’s us “see” 3D images . (depth). …but, how to do this to get . Astronomical Distances. ?. “. Do Now. SWBAT explain the life cycle of different types of stars. Turn in your Homework. Grab your clicker. Complete the “Are we made of star stuff” Misconception sheet.. January 24. Waning Crescent. Do Now. SWBAT explain the life cycle of different types of stars. Turn in your Homework. Grab your clicker. Complete the “Are we made of star stuff” Misconception sheet.. January 24. Waning Crescent. constellations. a. Ancient cultures used . mythology. or everyday items to name constellations. 2. Modern astronomy studies . 88 . constellations. 3. Some constellations are not . visible. all year because Earth revolves around the Sun. What is a Constellation?. A specific group of stars.. Ancient people of many cultures . connected. groups of stars to form patterns, like huge dot-to-dot puzzles.. These . patterns. are known as constellations. . R. Ellis & S. G. Djorgovski. Winter 2011. Class Logistics. All info, lecture notes, useful links, . homeworks. , exams, announcements, etc., will be on the class website:. http://www.astro.caltech.edu/~schenker/ay124. How the Universe is arranged. How stars form patterns in the sky. How the motions of bodies in space appear from Earth. Vocab. Orbit. – the path of an object in space as it moves around another object.