Welcome to the online presence of Aldrich Astronomical Society, Incorporated. The site has been optimized in 2 versions to accommodate varying systems. Version Galactic Core is very graphic heavy & requires a broadband internet connection, a moderately strong computer processor on a computer system running Windows, Mac OS 9, or Mac OS X, and a up to date internet browser. Version Open Cluster has minimal images, is written in basic html for those with dial-up internet connections, older computers, OS’s such as Linux, or older internet browsers.Welcome.htmlWelcome_2.htmlshapeimage_1_link_0shapeimage_1_link_1