Astronomy Picture of the Day . Canis Major Dwarf: A New Closest Galaxy . ... For many years astronomers thought the Large Magellan Cloud (LMC) was closest, but its title was supplanted in 1994 by the Sagittarius dwarf galaxy. ... Every day is a cloudy day on Jupiter, the Solar System's reigning gas giant. ... In fact they were mostly clear early on, allowing photographer David Cortner to record the evening's scheduled celestial entertainment, a total lunar eclipse. ... Eclipsed Moon in Infrared . ...