I'm a (semi!)-retired radio astronomer. I have lots of experience with Very Long Baseline Interferometry (VLBI). For five years (academic years from Fall 2000 through Spring 2005) I taught astronomy and physics at the Community College of Southern Nevada.

Some of what I found useful and interesting there will be featured here.

Check first my spectra of various gases.  I took pictures of these spectra because I couldn't find some of them on the web.  
These were used as references for unknown spectra which my students observed during an astronomy lab.   Feel free to you use these spectra.  If you do, though, I'd appreciate an acknowledgement.  THANKS!

Take a look at the Autoguider I have assembled for the National Undergraduate Research Observatory and the Lowell Observatory 31" telescope.

I can be e-mailed at dbs@astrodave.name .


Hobbies and Other Passions

Classical music - I have several hundred CDs of (largely) vocal music, much of it by composers from pre-renaissance through Bach, Handel, Haydn, and Mozart. My favorite early guys are Monteverdi, Gabrieli, and Schutz.
 
I sing tenor in the Master Chorale of Flagstaff
 (Arizona) and maintain their website.

I can also play passable folk music on my guitar (mostly from the 60s: Peter, Paul, and Mary and Joan Baez, in particular).

Other interests: ham radio (my call is W8MIF and I am a 50-year member of the ARRL), flying small airplanes, and scuba diving,

and
 
Photography.

See some of my flower pictures in Buds of Baderville .  The pictures I took of the Southern Nevada Musical Arts Society's (my former singing venue, when we lived in Las Vegas) 2008 Spring Concert are here.  Some more nice pictures are from my photo calendar for 2007.

How much snow did Flagstaff, Arizona get in January 2010?  Look here.

Then in June came the forest fires - look here.

Spectrum of a Helium Gas Discharge Tube

Spectrum of a Hydrogen Gas Discharge Tube

Spectrum of a Nitrogen Gas Discharge Tube

Spectrum of a Neon Gas Discharge Tube

Spectrum of an Argon Gas Discharge Tube

Spectrum of a Hydrogen Gas Discharge Tube

Spectrum of a Xenon Gas Discharge Tube

Spectrum of a Krypton Gas Discharge Tube

Spectrum of a Mercury Gas Discharge Tube

Dave Shaffer's Astronomy Site