Episode 21-01, June 29, 2021

The Galactic Times Returns!

This Just In–Astronomy News Tidbits:  Largest Comet in Modern Times Announced—Coming from the Solar System’s Now Known to be Original Protoplanetary Nebula…With a Little Stuff from its Brothers and Sisters.   (@1:10 – for 5:20)

Skies Over Earth–It may be summertime but the livin’ ain’t so easy, meteorologically speaking and otherwise.  And it isn’t due to the Earth being close to the Sun; in fact, on July 5th it is as far away as it can get!  Meanwhile, find Venus passing by its little red brother in the evening twilight (probably your last chance to find the latter) and bulldozing through the same Beehive little brother just tiptoed through, too.  On the other side of the sky, Saturn first, then brighter Jupiter are lining up to take over the nighttime show.  Use the Moon to find Mercury, all alone in the dawn twilight, on the 7th and 8th.  (@6:42 – for 4:00)

Planetary Music, Part 1 – The Solar System’s Sounds:  Copernicus was not the first person to really know how the Solar System was *really* arranged.  That honor belongs to 16th-17th century mathematician/astronomer Johannes Kepler.  In addition to his Laws of Planetary Motion, he made advances in other areas, too–wrote the first science fiction book, an accurate wine measurer, explained how the vision in eyes worked, and more–and believed it all worked because the Universe was designed mathematically by a God who believed in Harmony, even as his personal life and the world around him was riven with tragedy and religious strife.  He believed that Harmony existed in the orbits of the planets and that, if we could only hear it, they made a cosmic music, each planet making a note, and the system making a harmonius chord.  Today, Dr. Frederic Hessman of the University of Goettingen, Germany explains how to convert Kepler’s idea to real notes and real chords for the planets and make them into music….all in preparation for taking Kepler’s idea out into the stars…in Part 2 in the next podcast….with Exoplanetary Systems.  This Part 1 plays his music for the planets Mercury through Saturn and a tantalizing look at one exoplanetary system, 55 Cancri.   @10:52 – for 21:08)

PS: The collection of sound files for the planets of the Solar System, and for the Exoplanets that will be in the next podcast Episode, are located at http://www.astro.physik.uni-goettingen.de/~hessman/TheMusicOfTheExoplanets/ .

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