Articles written by current and former members of ASGH or Friends of ASGH.

All articles are intended for general informational purposes only and are published with the permission of the author


Right Angle Sweep, (RAS) or  Be Your Own GoTo By Tom Hoffelder

Comments from club member Dick Parker on using the Right Angle Sweep:

“Tom explained this right angle sweep method to me and after less than an hour I was able to find many new objects with ease.  And by using this method I have started to learn the various names of the stars in each constellation which adds to my appreciation and overall knowledge of the sky.  I had been using setting circles to find objects directly by coordinates, but have found Tom’s method easier and much more reliable especially with portable equipment used at varied observing sites.  I recommend that you give it a try and we should all thank Tom for freely sharing with us the tables and references that obviously took him many hours to assemble.”

Sunspotter by Barlow Bob

A personal evaluation of a sale solar viewing educational tool.