Look for Luna’s slender crescent very low in the west-northwest about half an hour after sunset on the 3rd. The following evening you’ll find her making an attractive triangle with Castor and Pollux, the Gemini Twins. On the night of the 7th she passes about seven degrees south of the star Regulus, heart of Leo, the Lion. The Sky This Week, 2011 May 31 – June 6 — Naval Oceanography Portal