Ada and surrounding communities are invited to the ONU Observatory on Friday, March 9 from 8 to 10 p.m. for Stardeath: supernovae and their remnants.

Stars meet their death in a variety of ways which depends mostly on their mass.  The most massive stars end in spectacular explosionscalled supernovae.

Those which occur in our Milky Way galaxy can outshine Venus for a month or more.

They leave behind expanding gas clouds which glow faintly in visible wavelengths for thousands of years.  It turns out that SNRs (supernova remnants) would seem much brighter if our eyes saw in radio or x-rays. We will take a look at a few SNRs that are visible in a telescope: the Crab Nebula and the Jellyfish Nebula.  We may also glimpse the galaxy NGC 3941 currently undergoing a supernova.  Low to middleweight stars like the Sun are not quite as explosive in death, but they still “puff out” their outer shells to form a beautiful “planetary nebula”.  We will also observe examples of these nebulae including the “Cat’s Eye Nebula” and the “Little Dumbbell.”

This event will be canceled if excessively cloudy skies are in the forecast.

Check this web site on the afternoon (after 2pm) before the eventfor cancellations: http://www2.onu.edu/~j-pinkney/astro/publicevents.html