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Messier 92, Globular Cluster in Hercules

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Messier 92 is one of two beautiful globular clusters in Hercules, the other being the famous M13. Although M92 is not quite as large and bright as M13, it is still an excellent sight in a medium to large telescope, and it should not be overlooked. The cluster is about 27,000 light years away and contains several hundred thousand stars.
Evening visibility: May-October
Best viewed with: telescope
  Printable chart (pdf) View larger image
Directions:
Start by finding the Summer Triangle, which consists of the three of the brightest stars in the sky--Vega, Deneb, and Altair. The Summer Triangle is high overhead throughout the summer, and it sinks lower in the west as fall progresses.

For this star hop, start from brilliant blue-white Vega (magnitude 0), the brightest of the three stars of the Summer Triangle.

From Vega, look about 15 degrees west for the distinctive 4-sided figure in the center of Hercules known as the keystone. On the north side of the keystone, imagine a triangle pointing to the north, with the tip of the triangle slightly shifted toward Vega (as shown in the chart below). This is the location of M92. Use a low-power eyepiece and it should be readily visible.
Star charts created with Cartes du Ciel