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b) Determining Distance from Angular Size and Diameter If you know how big an object really is (its diameter), and how big an angle it makes across the sky (its size), the distance to the object can be found from: (2) Small object's distance 57.3 x Object's diameter Angular Size (in degrees) Just like equation (1), the distance and diameter will be in the same units, like miles or light years. Ar angular size must be in

b) Determining Distance from Angular Size and Diameter If you know how big an object really is (its diameter), and how big an angle it makes across the sky (its size), the distance to the object can be found from: (2) Small object's distance 57.3 x Object's diameter Angular Size (in degrees) Just like equation (1), the distance and diameter will be in the same units, like miles or light years. Ar angular size must be in

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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b) Determining Distance from Angular Size and Diameter If you know how big an object really is (its diameter), and how big an angle it makes across the sky (its angular size), the distance to the object can be found from: (2) Small object's distance 57.3 x Object's diameter Angular Size (in degrees) Just like equation (1), the distance and diameter will be in the same units, like miles or light years. And the angular size must be in degrees, not arc-minutes or arc-seconds.
Transcribed Image Text:b) Determining Distance from Angular Size and Diameter If you know how big an object really is (its diameter), and how big an angle it makes across the sky (its angular size), the distance to the object can be found from: (2) Small object's distance 57.3 x Object's diameter Angular Size (in degrees) Just like equation (1), the distance and diameter will be in the same units, like miles or light years. And the angular size must be in degrees, not arc-minutes or arc-seconds.
4. At its closest point to Earth, Jupiter appears in a telescope to be 45 arc-seconds in angular size. We know Jupiter is about 88,000 miles in diameter. Use equation (2) to determine how far away Jupiter is during this observation. Be sure to convert the angle to degrees before you use the equation! telescope Angle of 45 arc-seconds Jupiter (88,000 miles in diameter) How many significant digits will the answer include? Answer: Unit:
Transcribed Image Text:4. At its closest point to Earth, Jupiter appears in a telescope to be 45 arc-seconds in angular size. We know Jupiter is about 88,000 miles in diameter. Use equation (2) to determine how far away Jupiter is during this observation. Be sure to convert the angle to degrees before you use the equation! telescope Angle of 45 arc-seconds Jupiter (88,000 miles in diameter) How many significant digits will the answer include? Answer: Unit:
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