When calculating the size of a distant object, the relationship among size, distance, and angle subtended is DISTANCE SIZE SIZE/DISTANCE = where è is in radians. There are about 200,000 arcseconds in a radian. At closest approach to Earth, Mars subtends an angle of about 20 arcseconds. If the diameter of Mars is about 7000 km, how far away is it at this time?
When calculating the size of a distant object, the relationship among size, distance, and angle subtended is DISTANCE SIZE SIZE/DISTANCE = where è is in radians. There are about 200,000 arcseconds in a radian. At closest approach to Earth, Mars subtends an angle of about 20 arcseconds. If the diameter of Mars is about 7000 km, how far away is it at this time?
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
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![33. When calculating the size of a distant object, the relationship among size,
distance, and angle subtended is
DISTANCE
SIZE
where is in radians.
SIZE/DISTANCE
There are about 200,000 arcseconds in a radian.
At closest approach to Earth, Mars subtends an angle of about 20
arcseconds. If the diameter of Mars is about 7000 km, how far away is it
at this time?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe6550d6c-ef6d-4110-b142-4f2d9d3f196d%2Fd750085d-8e84-4fd5-ba5d-c4fa3e6fa372%2F3x5opra_processed.png&w=3840&q=75)
Transcribed Image Text:33. When calculating the size of a distant object, the relationship among size,
distance, and angle subtended is
DISTANCE
SIZE
where is in radians.
SIZE/DISTANCE
There are about 200,000 arcseconds in a radian.
At closest approach to Earth, Mars subtends an angle of about 20
arcseconds. If the diameter of Mars is about 7000 km, how far away is it
at this time?
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