June 2018

Observing Noctilucent Clouds
by
Michael Gadsden and Pekka Parviainen

The June Book of the Month is Observing Noctilucent Clouds by Michael Gadsden and Pekka Parviainen.  The book was the featured book a year ago, but as it’s such a good introductory book on noctilucent clouds (NLC), and as it is available online, well, here it is again. You can find it at:

http://www.iaga-aiga.org/data/uploads/pdf/guides/onc.pdf

Observing Noctilucent Clouds contains a great set of photo showing the various structures of NLC and their corresponding notations. At the end of the book are instructions on how to calculate the angle of the Sun below the horizon, which determines how high NLC will be in your sky. Have look, and then stay up a bit late over the next couple of months – it’s NLC season now!

The Lamplighter Library will not be accessible during the renovation of our usual meeting venue, the star theatre, but in the meantime a selection of books will be available outside the IMAX theatre before and after each meeting!

Mark Zalcik
Librarian