The images are downloaded from the internet so some displays take a few seconds to update-ates. In effect you are looking through a very large telescope. This program provides access to professional quality telescope images in several wavelengths.

You can also point at a specific location using the right ascension and declination coordinitem you wish to view and it automatically downloads a view of the item selected. It was one of only two programs which indexed every star and deep space object in my test sample as well as showing several images of each item. I could superimpose various views in to one and I could open up to 16 panels with images in each. One can apparently download files for offline viewing. You select theyour results would depend of course on the connection speed and on how many databases are being utilized. Hubble images, the Simbad database, and the VizieR service. Instead of the internet, Aladin browses through astronomy images, density maps, and other astronomy sources, e.g. 1- Aladin could be thought of as an astronomy browser.

Stellarium program moon phase