AY 102 Major Quiz 3 Review
Your third major quiz will be _____. You should study and UNDERSTAND the concepts on this page. Know their definitions and why they are important in astronomy. Use your lab manual, lab notes, online practice quizzes, and textbook when reviewing.
Lab 9: Galactic Distributions
- Identification of isotropic, halo anisotropic, and disk anisotropic distributions
- Where in a galaxy are you most likely to see gas and dust clouds?
- The two different types of star clusters and where they are found in a typical spiral galaxy
- Distributions of open (galactic) clusters and globular clusters
Lab 10: The Milky Way
- Know how to identify if a star is red or blue from a negative plate
- The basic categories of objects found in the galaxy
Lab 11: Galaxies and Galaxy Clusters
- The two main types of galaxies and their distinguishing features
- What type of galaxy do we live in?
- Sub-classification of elliptical galaxies
- Sub-classification of spiral galaxies
- Be able to classify a galaxy as either an elliptical, a normal (non-barred) spiral, or a barred spiral
- If we use the angular sizes of two clusters to decide which one is closer to us, what must we assume?
Lab 13: Orbital Motion of Planets
- What is the overall shape of Mercury's orbit around the Sun?
- Know the difference between retrograde and prograde motion
- What causes retrograde motion?
- Elongation and maximum elongation
- Understand the main features of an ellipse:
- center
- foci (for a planetary orbit, the sun is found at one focal point)
- major axis
- semimajor axis
- minor axis
- semiminor axis
- eccentricity
A practice quiz can be found at: http://www.astr.ua.edu/ay102/Quiz3/Q3Rev2.shtml
