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Unformatted text preview: 6. Is this cluster closer or farther than 10 parsecs away? 7. Using the graph and the distance equation, figure out how far away the cluster is in parsecs. Explain how you did it and show your work and the answer below. In 1958, H.L. Johnson and R.I. Mitchell calculated the distance to this cluster to about 410 light-years. As a percentage, how does your calculated value compare? Show your work. 8. Do any of your stars seem to lie in the red giant part of the H-R diagram? If so, identify them by their RA and declination. Copy and paste in a plot of the H-R diagram with your stars and the standard stars clearly identified here. Attach this answer sheet and a copy of the spreadsheet to the Blackboard submission box. Conclusion question (Individual work): Compare this method of finding distance to the method of parallax. Identify strengths and weaknesses of this method and explain assumptions we have made....
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- Spring '08