c1bf6049bf Designed by an avid observer trained as a professional astronomer, each tool . the SkyTools approach feel free to download the free trial of the Starter Edition.. 19 Feb 2011 . SkyTools 3 User Guides. Skyhound Download page Standard Edition: 566 pages. Professional.. Pro Edition . The Starter Edition of SkyTools 3 is for beginning backyard observers using binoculars and small telescopes . Free Trial: the download can be used by anyone as a free trial, with some of the more advanced features disabled.. The Professional Edition is for the astronomical imager, experienced visual observers . The Pro Edition includes all of the features of the Standard Edition plus a much . SDSS, IR, H-alpha, and 2MASS images are available for download for.