A long-exposure, opticalwavelength image. At the time it was taken, it showed the sharpest views of the faintest galaxies ever seen. The image was made by aiming the Hubble Space Telescope at a single NASA / Amazing Space Glossary of Astronomy Terms piece of sky for 150 consecutive orbits. The telescope made 342 exposures; 276 of them were fully processed and used for the image.

There are two Hubble Deep Field images — the first one studied a location in the northern sky (HDF–N) and the second one studied a location in the southern sky (HDF–S).