The Sky Today on Monday, July 21: Iapetus reaches eastern elongation

Saturn’s tidally locked, two-toned moon Iapetus reaches eastern elongation today, standing a full 9′ east of Saturn. The moon appears faintest at eastern elongation, when its darker hemisphere is turned toward us and it glows a faint 12th magnitude. However, without our Moon lighting the early-morning sky, you might try to spot faint Iapetus —Continue reading “The Sky Today on Monday, July 21: Iapetus reaches eastern elongation”
The post The Sky Today on Monday, July 21: Iapetus reaches eastern elongation appeared first on Astronomy Magazine.