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Module 11 Questions – Mass of Galaxies

Module 11 Questions – Mass of Galaxies This discussion will focus on Question 16, “Clusters of galaxies’ masses can be calculated from?” My choice was “velocities of...

Module 10 Questions – Spiral Arms

Module 10 Questions – Spiral Arms This discussion covers question 12, “ One reason trailing spiral arms form (and then may dissipate) in the disk of our galaxy is because stars farther from...

Module 10 Lab Questions – Globular Clusters

Module 10 Lab Questions – Globular Clusters This discussion covers Question 6, “Which type of cluster is preferentially seen away from the Milky Way in the sky but distributed about its...

What Prevents a White Dwarf Star From Collapsing?

What Prevents a White Dwarf Star From Collapsing? This discussion will dwell on Question 9, “A white dwarf star is prevented from collapsing by.” My choice was “degenerate matter.” I answered this...

Module 09 Lab Questions – Balmer Lines

Module 09 Lab Questions – Balmer Lines This discussion covers Question 7, “Contrast an A star and an M star. Which has the Balmer lines strong? Which weak?” My choice was “A Balmer strong; M...