Podcaster: Steve Nerlich

This image has an empty alt attribute; its file name is CheapAstro-150x150.png

Title: Cheap Astronomy – Dear CA #99: Same Old

Organization: Cheap Astronomy


Description: Cheap Astronomy looks at some new ways to answer some old questions.

Dear Cheap Astronomy – I still don’t get Lagrange points, particularly L4 and L5.

Most explanations of Lagrange points are a bit idealised. For example, explanatory diagrams show Earth’s orbit as a perfect circle around the Sun, which isn’t right, it’s really an ellipse.

Dear Cheap Astronomy – Can neutrinos predict supernova explosions?

We’ve previously expressed doubts that the recent dimming of Betelguese suggests it is about to go supernova. Since Betelguese is an irregularly variable star, the recent dimming just means it’s being true to form.

Bio: Cheap Astronomy offers an educational website where you’re only as cheap as the telescope you’re looking through.

Today’s sponsor:  Big thanks to our Patreon supporters this month:  Paul M. Sutter, Chris Nealen, Frank Frankovic, Frank Tippin, Jako Danar, Michael Freedman, Nik Whitehead, Rani Bush, Ron Diehl, Steven Emert, Brett Duane, Don Swartwout, Vladimir Bogdanov, Steven Kluth, Steve Nerlich, Phyllis Foster, Michael W, James K Wood, Katrina Ince, Cherry Wood.

Please consider sponsoring a day or two. Just click on the “Donate” button on the lower left side of this webpage, or contact us at

Please visit our Patreon page:

or you can consider to sponsor a day of our podcast :

End of podcast:

365 Days of Astronomy

The 365 Days of Astronomy Podcast is produced by Planetary Science Institute. Audio post-production by Richard Drumm. Bandwidth donated by and wizzard media. You may reproduce and distribute this audio for non-commercial purposes. 

This show is made possible thanks to the generous donations of people like you! Please consider supporting to our show on and get access to bonus content.

After 10 years, the 365 Days of Astronomy podcast is entering its second decade of sharing important milestone in space exploration and astronomy discoveries. Join us and share your story. Until tomorrow! Goodbye!