The telescope mirror we are about to discuss has not led an ordinary life, nor is it an ordinary optic. The bouncing baby 24" ZeroDur blank came out of the annealing oven in the early 1970's weighing 120 pounds. It was four inches thick and sported a ten inch central perforation.
Colours of the Stars at Bel Ayr Schoolby Dave Chapman, Halifax CentreOn January 27, I presented "The Colours of the Stars" to 44 Grade 6 students at Bel Ayr School in Dartmouth. The week before, I gave them some prep work to do: several questions about stars to warm them up. I also had them make 6 large paper disks with different star names and colours: Aldebaren (orange), Betelgeuse (red), Procyon (light yellow), Rigel (blue), Capella (yellow), Sirius (white). These are the 6 brightest winter stars at our latitude.
Bruce A. Aikenhead
Dr. M.E. Alexander
Frank N. Aldrich
Robert M.P. Alexander
William C. Allen
Jay Anderson
Ray Andrejowich
Gordon Anthony
Ruth Anthony
Ron Armstrong
David Asbury
John Geoffrey Ascah
Raymond Auclair
Dirk Auger
Claude R.J. Bastien
Robert B. Bates
William Bell
Marquerite F. Blades
It is important to get good quality equipment that does the job for you -- that much is obvious. However, it is also important to get equipment that makes observing easy and pleasant to do. If your equipment is awkward and difficult, you will most likely give up in frustration or lose interest. Variable star observing should be fun!!
The Observer’s Handbook for 1907 (Digital Edition)
Introduction by Roy Bishop, August 2009
Paper and ink have enabled the first edition of the Observer’s Handbook to survive for more than a century, and digital technology now makes it accessible to anyone.
