Review Observations of the Crab Nebula taken over several decades show that gas blobs that are now 100 arcseconds from the center of the nebula are moving away from the center by about 0.11 arcsecond per year. Part A Use that information to estimate the year in which the explosion ought to have been observed. Express Vour answer in veare D te bue eloni

Review Observations of the Crab Nebula taken over several decades show that gas blobs that are now 100 arcseconds from the center of the nebula are moving away from the center by about 0.11 arcsecond per year. Part A Use that information to estimate the year in which the explosion ought to have been observed. Express Vour answer in veare D te bue eloni