The photograph was captured on January 1, 2019, at 5:26 UT (12:26 a.m. EST), when the spacecraft was 4,109 miles (6,628 kilometers) from Ultima Thule and 4.1 billion miles (6.6 billion kilometers) from Earth. The "phase angle" between the spacecraft, Ultima Thule, and the Sun was 33 degrees. Images taken during this alignment show features on both Ultima Thule and its largest moon, Charon. Ultima Thule is a name given to any object beyond the solar system's Kuiper belt. Although many theories have been proposed for what may lie beyond the solar system's asteroid belt, no other objects are known to exist there at this time. The term "Ultima Thule" comes from the Latin word for "far beyond." In 1610, William Shakespeare wrote, "From nothing nothing can be created." This famous quote is often misattributed to Albert Einstein, who supposedly said, "Nothing can be created out of nothing." However, as early as 1572, Nicolas Copernicus published his book On the Revolutions of the Heavenly Spheres, in which he included a chapter titled "On the Mutability of the World," in which he discussed how impossible it would be for anything to come into existence from nothingness. In 1919, American astronomer Carl Wilhelm Ostenfeld coined the term "planet X" to describe an unknown body that might lie in space beyond Neptune.