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Distances in Space - PowerPoint PPT Presentation By julianna-larya (/julianna-larya) Follow User (/julianna-larya/subscribe/on/i)
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Distances in Space. Objectives: Learn what units scientists measure distances in space. Define and use an astronomical unit to measure distances in space. Define and use a light year to measure distances in space. Space is so BIG!. For example: Earth is 93,000,000 miles from the sun. 0 Comments
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Distances in Space (https://image3.slideserve.com/6107581/slide1-n.jpg)
khatib)
Objectives: Learn what units scientists measure distances in space. Define and use an astronomical unit to measure distances in space. Define and use a light year to measure distances in space. Space is so BIG! (https://image3.slideserve.com/6107581/slide2-n.jpg) For example: Earth is 93,000,000 miles from the sun. Earth is 46,000,000 miles from Mars. Pluto is 3,720,000,000 miles from the sun. Our sun is 25,800,000,000,000 miles from the nearest star, Proxima Centauri. Our galaxy, The Milky Way, is 600,000,000,000,000,000 miles in diameter (across). A.U.s & Light Years (https://image3.slideserve.com/6107581/slide3-n.jpg) Scientists do not want to work with large numbers, so they make up new units to measure distances in space with. The two units used in astronomy are: Astronomical Units (A.U.s) Light Years
(/chung/u2-astronomymeasuring-spacedistances)
space-do-not-use-thisspace)
Astronomical Units (A.U.s) (https://image3.slideserve.com/6107581/slide4-n.jpg) Used to measure distances within the solar system. 1 A.U. = the average distance between the Sun and Earth. 1 A.U. = 93 million miles / 149.6 million kilometers
A.U.s (https://image3.slideserve.com/6107581/slide5-n.jpg) Distances Within the Solar System
Light Years (https://image3.slideserve.com/6107581/slide6-n.jpg)
PDK Declared Distances -. pdk declared distances. faa order 5200.8 runway safety area program states “all runway safety (/taima/pdk-declaredareas (rsa) at federally obligated distances) airports shall conform to the standards contained in ac 150/5300-13, airport design, to
A light year is the distance light can travel in one year. Light travels at the speed of 300, 000 km/s (186,000 mi/s) 1 LY = 6 trillion miles (9.5 trillion kilometers) 6 x 10 12 mi (9.5 x 10 12 km) Used to measure distances outside our solar system Example: Distance between the sun and another star or galaxy
Lecture 7 -Spatial orientation:. the need for spatial orientation the meaning of space. a continuous unlimited area or (/apiatan/lecture-7) expanse which may or may not contain objects etc. vacuum. what is space?. space in anthropology. social constructednot empty not a
Light Years (https://image3.slideserve.com/6107581/slide7-n.jpg) Proxima Centauri is the closest star to our sun. Proxima Centauri is 4.6 light years away. How many miles away is Proxima Centauri? 4.6 light years x 6 trillion mi= 27.6 trillion miles away (27,600,000,000,000 miles or 2.76 x 10 13 ) Since Proxima Centauri is 4.6 light years away, it takes 4.6 years for the light from Proxima Centauri to reach us. How can we tell how far away a star is? (https://image3.slideserve.com/6107581/slide8-n.jpg) PARALLAX = APPARENT CHANGE IN POSITION OF AN OBJECT WITH RESPECT TO A MORE DISTANT BACKGROUND. As Earth moves in its orbit, stars are viewed from different angles and appear to move against the background of more distant stars. The degree of “apparent” motion can be converted into LYs. ASTRONOMERS MEASURE THE PARALLAX OF NEARBY STARS TO DETERMINE THEIR DISTANCE. (Used for stars w/in a few hundred LY) Degrees parallax can be converted to light years. http://instruct1.cit.cornell.edu/courses/astro101/java/parallax/parallax.html M13 is about 145 light-years in diameter, and it is composed (https://image3.slideserve.com/6107581/slide10-n.jpg) of several hundred thousand stars. M13 is 25,100 light-years away from Earth.
February (https://image3.slideserve.com/6107581/use-parallax-to-determinewhich-star-is-closer-to-earth-n.jpg) August
Use parallax to determine which star is closer to Earth? (https://image3.slideserve.com/6107581/us e-parallax-to-determine-which-star-iscloser-to-earth-n.jpg)
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Face Recognition: A Literature Survey -Early methods of recognition. early methods treated recognition as a problem (/stew/face-recognition-aof 2d pattern recognition.methods literature-survey) included distance-measuring algorithms. these determined the distances between important 1 of 5 features
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