A107 The Art of Astronomy S2017 NAME: Michael LoGiurato Exploration 12: Expansion of SN1993J Due by 11:59 PM on April 1 (submit this form via the Canvas assignment tool) What to hand in: Upload this worksheet to Canvas using the Exploration 11 assignment. Answer the questions on the worksheet and paste in your diagram showing the best fit of the fiducial main sequence to the observed data. Part 1. Answer the three questions in the space below. Has the expansion rate increased os It increased over time slowed over time? How many days after the supernova explosion did the expansion rate 774 change? From your expansion rate, how big would the supernova remnant be today 6 cm (in cm)? Part 2. Paste your graph of the size of the nebula versus time in the box below.