Astrohw2

Astrohw2 - Astronomy 22, Homework 2 Teddy Portney September...

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Astronomy 22, Homework 2 Teddy Portney September 24, 2007 Fall 2007 I. READING 1.) For this week we had to read chapters 2 and 3 in the Sun and Stars textbook. I found this to be a good way to learn the physics of what happens in the sun. Again, the pictures used in this book greatly added to the information included in the text. Also this week, we had to read chapters 8.1-8.5 in the paperback Swihart textbook. This text was very difficult to read, as it developed about 4 equations per page with minimal descriptions of how to use them. II. DETERMINATIONS 2.) Using the method described in the assignment prompt for this question, I measured the projected diameter of the sun to be 9 millimeters, to within half a millimeter. Using the D = d * θ equation, I calculated the angular diameter in radians and converted this number to arcseconds using the conversion factor of π/648,000 radians per arcsecond. The values I calculated were 9/1000 radians and 1856.4 arcseconds. Carrying over my range of uncertainty to arcseconds, I can say that the angular diameter of the sun
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Astrohw2 - Astronomy 22, Homework 2 Teddy Portney September...

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