The 365 Days Of Astronomy, The Daily Podcast Of The International Year Of Astronomy 2009

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org From May, 2024. Today's 2 topics: - Comet 12P/Pons-Brooks comes near the Sun once every 71 years.  It was discovered in 1812 by Jean Louis Pons at Marseilles, France and then rediscovered by American Astronomer William Robert Brooks in 1883. Electronic cameras reveal this comet's nucleus has jets of gas that produce a spiral structure not unlike water jets from a lawn sprinkler. - On the 3rd of March 2024 while asteroid hunting with our 60 inch telescope on Mt. Lemmon , Arizona my Catalina Sky Survey teammate Kacper Wierzchoś discovered a comet moving through the constellation of Draco.Since we don’t know Kacper’s comet’s chemical composition it is impossible to accurately predict how. bright it will be as it crosses the  Earth’s orbit December 12, 2025, rounds the sun January 20, 2026, and crosses our orbit