The Orion Nebula is located roughly 1,350 light - years from Earth, forming a part of the «sword» of the Orion constellation, and can be viewed by the naked eye as a small fuzzy patch on a clear night. (newatlas.com)
Both M6 and M7 appear as fuzzy patches to the naked eye under... (discovermagazine.com)
With many thousands of 3 - D fuzzy patches weighed statistically by a so - called sensor model, which is trained offline using calibrated example routes, the system is remarkably tolerant of poor sight, changes in lighting, movement of objects, mechanical inaccuracies and other perturbations. (scientificamerican.com)