Collin College PHYS 1403 Lab 7; APPARENT & ABSOLUTE VISUAL MAGNITUDE
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PHYS 1403 Lab 7: APPARENT & ABSOLUTE VISUAL MAGNITUDE Worksheet Enter your answers to each question in the data tables and yellow highlighted areas below. When completed, please save and upload this f ... ile to the assignment – Lab 7 – in Canvas. PRELAB QUESTIONS 1. The apparent visual magnitude of Canopus is –0.6 and that of Hadar is +0.6. Which star is brighter? How do you know? Canopus would be the brighter star because it has a smaller apparent visual magnitude. 2. What is the absolute visual magnitude of a star? Absolute visual magnitude determines the brightness of a star at 10 parsecs from earth. 3. Epsilon Eridani has an apparent visual magnitude of + 3.7. Will it will be visible with the naked eye? How do you know? Yes, the human eye can detect an mv of up to 6.0. 4. Ross 128 has an apparent visual magnitude of +11.1. Will it will be visible with the naked eye? How do you know? No, the human eye can detect an mv of only up to 6.0. 5. Ross 128 is 3.4 parsecs from us. If it were moved to 10 parsecs, would it appear brighter or dimmer? Why? [Show More]
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