Astronomical survey
general map or image of a region of the sky with no specific observational target.
Hubble Legacy Field
Lick–Carnegie Exoplanet Survey
Gaia Data Release 3
Ohio Sky Survey
Palomar Transient Factory
Lincoln Near-Earth Asteroid Research
Hubble Deep Field
Seventh Cambridge Survey
star count
The Dark Energy Survey
BATTeRS
Sloan Digital Sky Survey
Planet-Crossing Asteroid Survey
Gaia Early Data Release 3