Podcast: North Star Special

By Michael on October 4, 2009 at 6:13 pm | In Audio Podcasts | No Comments

We have a new podcast on the feed! It’s been a while since our last show but we made up for it with a nice, long and informative show about Polaris, also known as The North Star.

The podcast features the usual crew — Michael Koppelman, Doug Welch and Mike Simonsen and includes an interview with Dr. Edward Guinan and Scott Engle from Villanova University.

A quick summary of Polaris facts:

1. Polaris is not the brightest star in the sky.
2. Polaris is in the north.
3. Polaris hasn’t always been and won’t always be the north star.
4. Polaris is a variable star of a type known as Cepheids, which have been important stars in understanding cosmic distance scales.

Subscribe to the feed or listen now using the player below.

 

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UPDATE: Mike Simonsen has a nice photo of Ed Guinan and a link to more discussion on Polaris.