deep field
image of a portion of the sky taken with a very long exposure time
Hubble Deep Field
multiple exposure image of deep space in the constellation Ursa Major
Hubble Legacy Field
multiple exposure image of deep space in the constellation Fornax
Hubble Deep Field South
multiple exposure image of deep space in the constellation Tucana
Chandra Deep Field South
astronomical survey in the constellation Fornax
Hubble Ultra-Deep Field
multiple exposure image of deep space in the constellation Fornax