Rare blue "supermoon" graces skies across northern Illinois

Stargazers across northern Illinois witnessed a beautifully rare event Monday evening, the rising of a blue "supermoon".  

Why is it called a blue "supermoon"? For one, this is the second full moon in the last calendar month with the last occurring on July 21st. The "supermoon" part comes from the moon's appearance as it looks bigger and brighter than your typical full moon. This is all because the moon is at its closest point to the Earth in its annular orbit. This is known as the perigee. 

If you missed out on last night's rare lunar event, don't fret as it will grace skies once again tonight. With high pressure sitting nearby, we can expect generally dry conditions under a few clouds. 

Temperature-wise, the night kicks off in the mid 60s, with some feeling more like fall by Wednesday morning in the upper 40s. If you miss out, you'll have to wait a while to view the next blue "supermoon" won't happen until Jan. 31, 2037, a little over 12 years from now. The next "supermoon" however is set to occur on September 17th of this year. In fact, the next three months feature a "supermoon".