For those observers interested in astronomical spectroscopy, "Small Telescope Astronomical Spectroscopy" is now available. The pre-publication price is still good until midnight 30 April 2012. For more information please see: http://www.hposoft.com/SB/SpectroBook.html Please note: It has been pointed out there is a typo on the back cover of the book. It is very minor, but was too late to get corrected. My old eyes missed it. I leave it as an exercise to find it. Jeff Hopkins Phoenix Observatory (187283) Counting Photons Phoenix, Arizona USA www.hposoft.com/Astro/astro.html http://www.hposoft.com/SB/SpectroBook.html -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.