Astr 102 - Study guides, Class notes & Summaries

Astro 102 Final Exam Ultimate Study Guide | 100% Correct Answers | Verified | Latest 2024 Version

ASTR 102 Midterm Exam Questions | 100% Correct Answers | Verified | Latest 2024 Version

ASTR 102 Midterm 2 | 100% Correct Answers | Verified | Latest 2024 Version

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ASTR 102 Final Lecture Questions | 100% Correct Answers | Verified | Latest 2024 Version

The apparent motion of a foreground object relative to a distant background as the observers position changes? - Parallax When measuring parallax the distance between two observation points is called? - Baseline If Earth rotated twice as fast as it currently does, but its motion around the Sun stayed the same, then? A. The night would be twice as long B. The night would be half as long C. The year would be half as long D. The length of the day would be unchanged. - B. A long, thin cloud ...

A star has an apparent brightness of -2 and an absolute brightness of 1. What must be true? Select one: a. The star is further than 10 parsecs b. The star is at 10 parsecs c. The star is closer than 10 parsecs d. The star is close to exploding - c What is special about electromagnetic waves? Select one: a. We can see all of them b. They do not need a medium to travel c. They only exist near stars d. Each color travels at a different speed - b A star that has a smaller absolute bright...

ASTR 102 Midterm Exam Questions | 100% Correct Answers | Verified | Latest 2024 Version

ASTR 102 Exam Questions With All Correct Answers Current Update We have learned that the centre of the milky way contains a very massive black hole. We developed this understanding by: - Answer -Monitoring the orbital motions of many individual stars in the very central parts of the Milky Way If the sun were to be squashed down small enough to become a black hole, then: - Answer -The planets in the solar system would orbit the Sun in unchanged fashion (but would receive no light from it) ...

We have learned that the centre of the milky way contains a very massive black hole. We developed this understanding by: - Monitoring the orbital motions of many individual stars in the very central parts of the Milky Way If the sun were to be squashed down small enough to become a black hole, then: - The planets in the solar system would orbit the Sun in unchanged fashion (but would receive no light from it) The first stellar mass black hole identified, Cygnus X-1, was found in 1973. The n...