Ive been an amateur astronomer since 1979 and have tried a number of computer programs for astronomy. Sky Safari is by far the best available for the iPhone and is even better on the iPad. Touch an object to select it, then touch the Info button for a wealth of information: name, type of object, rising and setting times, apparent magnitude, and much more. And the sky simulation is spot on. A great value for a very small price.
Aggiedad1 about SkySafari 4: Journey into Night! Explore Sun, Moon, Mars, Stars, Satellites, and NASA space missions!