Four Seasons
The following text appears on the plaque: “Leo, one of the twelve zodiac constellations, lies on the ecliptic and represents the mythical lion defeated by Hercules.  The ecliptic marks the apparent annual path of the Sun across the sky. Regulus, Leo’s brightest member, is a young, blue- white star that is situated 70 light-years from the Earth. Regulus is actually a multiple system whose two faint companions are not visible to the unaided eye.  When we look toward Leo we are actually looking out above the obscuring plane of our galaxy. For this reason, many other distant galaxies can be seen through telescopes in this region of the sky.  Just beneath the line joining Denebola, the lion’s tail, and Regulus lie the galaxies M65, M66, M95 and M105. Like our own Milky Way, each is an island containing hundreds of billions of stars.  Coma Berenices, a constellation located northeast of the lion’s tail, contains an open cluster of about 30 stars that are visible through binoculars. Situated beyond these stars is a group of over 1,000 galaxies. The Coma galaxy cluster lies about 290 million light- years from Earth and is receding from us at 6,700 km/sec. Coma Berenices also contains the north galactic pole (NGP), an imaginary point in space through which our galaxy’s axis of rotation runs.  The Virgo galaxy cluster is located in the cusp of the constellation Virgo, southeast of the lion’s tail. The Virgo cluster is situated about 50 million light-years from Earth and is receding at 1,000 km/sec. It contains over 2,500 galaxies.” 
The blue mark indicates where to stand to see the alignment.
Designed by Katsuhiro Yamazaki; metalwork by Soheil Mosun, Ltd. and Alfred Pfattischer.