The Keystone is a trapezoid-shaped asterism formed by four relatively bright stars in the constellation Hercules: Pi, Eta, Zeta and Epsilon Herculis. It outlines the torso of Hercules.| www.constellation-guide.com
The Saturn Nebula (NGC 7009) is a small but bright planetary nebula located 2,000 to 4,000 light years away in the constellation Aquarius. It can be seen in small and medium telescopes.| www.constellation-guide.com
Hercules is one of the largest constellations in the sky. Representing the mythical Greek hero, the constellation is home to the Hercules Globular Cluster (M13), the globular cluster Messier 92, and the Hercules Cluster of galaxies.| www.constellation-guide.com
Kornephoros, Beta Herculis (β Her), is a luminous yellow giant located 139 light years away in the constellation Hercules. Shining at magnitude 2.81, it is the brightest star in the constellation.| Star Facts