Two stars of identical spectral type are discovered within the Milky Way galaxy. Star #1 lies at a distance of 1000 light-years. The observed flux from star #2 is 25 times smaller than that from star #1. a) How far away is star #2 in light-years? Explain your reasoning. b) A third star of the same type is discovered in a nearby galaxy, 5 × 106 light-years away. How much fainter do we expect star #3 to be, compared to star #2? Explain your reasoning.
Two stars of identical spectral type are discovered within the Milky Way galaxy. Star #1 lies at a distance of 1000 light-years. The observed flux from star #2 is 25 times smaller than that from star #1. a) How far away is star #2 in light-years? Explain your reasoning. b) A third star of the same type is discovered in a nearby galaxy, 5 × 106 light-years away. How much fainter do we expect star #3 to be, compared to star #2? Explain your reasoning.
Related questions
Question
Two stars of identical spectral type are discovered within the Milky Way galaxy. Star #1 lies at a distance of 1000 light-years. The observed flux from star #2 is 25 times smaller than that from star #1.
a) How far away is star #2 in light-years? Explain your reasoning.
b) A third star of the same type is discovered in a nearby galaxy, 5 × 106 light-years away. How much fainter do we expect star #3 to be, compared to star #2? Explain your reasoning.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
