The moon meets up with Mercury and Saturn early Monday morning

You may be able to watch the moon cluster up with ringed Saturn and fleeting Mercury on Monday (Feb. 28), but it will be a considerable challenge.

The three worlds will be clustered extra-close to the southeastern horizon as the sun is rising. Saturn is at magnitude 0.7 and Mercury at a brighter -0.1. (For perspective, most people can see stars down to magnitude 6 in dark-sky conditions.)