Aerial Photographs are taken by a camera in an airplane. The altitude varies depending on the purpose of the photo. Satellite Imagery is taken by a Satellite orbit at an altitude of several hundred to several thousand miles, depending on the use for the images.
Satellite images come with multi layers (Bands) with different spatial resolutions despite of this Aerial Photo's might be comes in single layer which cannot be used for digital classification.
Satellite imagery and aerial photography both provide a view of the Earth from above, and both are used to study geography, to survey areas of land and even to spy on governments. The methods of creating images differs between the two techniques, as does the application of such images most of the time. While both processes can produce digital images, satellite images have greater large-scale scientific applications, and aerial photography has greater small-scale commercial applications