Preview The 7-day old First Quarter Moon on May 21, 2018. Image ID: 1350-162 Artist: Alan Dyer Purchase a commercial license Buy framed prints & more from our print store 130mm 2x barlow 7 day old astro physics e front curtain mare tranquillitatus may 2018 moon sony waxing a7iii first quarter lunar prime focus seas terminator sky skies sky photography astronomy astronomical astro photography astro photography science nature astro