20090729

Galileoscope vs. Project STAR telescope: first quarter Moon

090728-1100467
http://www.flickr.com/photos/waiferx/3767707229/
Originally uploaded by Waifer X

Project STAR telescope (upper, sciencefirst.com/vw_prdct_mdl.asp?mdl_cd=6540000) and Galileoscope (lower, www.galileoscope.org), both aimed at the first quarter Moon at dusk, for a direct comparison of light-gathering, resolving, and magnification powers of their respective images.


090728-1100449
http://www.flickr.com/photos/waiferx/3768505836/
Originally uploaded by Waifer X

FOV (inverted) through the Galileoscope (www.galileoscope.org) of the first quarter Moon (25x) at dusk.


090728-1100444
http://www.flickr.com/photos/waiferx/3767704455/
Originally uploaded by Waifer X

FOV (inverted) through the Project STAR telescope (sciencefirst.com/vw_prdct_mdl.asp?mdl_cd=6540000) of the first quarter Moon (approximately 15x) at dusk. Image is actually sharper than this, but adequate prime focus photography is difficult due to extremely poor eye relief.

Photos by Cuesta College Physical Sciences Division instructor Dr. Patrick M. Len.

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