The discussion centers on identifying an object near the moon in a Google Sky image, which is actually focused on the star Spica, the brightest in the Virgo constellation. Participants explore the image, noting a fuzzy star nearby that turns out to be the Sombrero Galaxy, a notable spiral galaxy characterized by its dusty lanes and bright center. The conversation also touches on the nature of constellations, clarifying that the Sun, while central to our solar system, is not part of any constellation due to its changing position in the sky relative to the stars. The historical context of constellations is briefly mentioned, emphasizing that they were formed based on the perceived motionlessness of stars in the night sky.