Deep-Sky Objects in July 2022

Image Credit: Vito Technology, Inc.

Brightest star clusters in July

July 1: The Sagittarius Cluster (M22)

Messier 22 (NGC 6656, the Sagittarius Cluster) is a globular cluster located in the constellation Sagittarius. It was discovered in 1665 and became one of the first objects of its kind ever found. Also, it is one of the four globular clusters to host a planetary nebula.

July 2: The Tweedledee Cluster (IC 4756)

IC 4756 (the Graff’s Cluster, the Secret Garden Cluster, the Tweedledee Cluster) is an open cluster located in the constellation Serpens. Together with NGC 6633, they make up a duo of the Tweedledee and Tweedledum clusters, named after the characters of Lewis Carroll’s book “Through the Looking-Glass, and What Alice Found There”.

July 10: The Great Peacock Globular (NGC 6752)

NGC 6752 (Caldwell 93, the Great Peacock Globular) is the third-brightest globular cluster in the sky (magnitude 5.4). It can be found in the constellation Pavo.

July 17: The Summer Rose Star (M55)

Messier 55 (NGC 6809, the Summer Rose Star) is a globular cluster located in the constellation Sagittarius. The cluster shining at a magnitude of 6.3 makes a good binocular target. Medium-sized telescopes will provide a view of individual stars.

Deep-sky objects and the Moon

In July 2022, two deep-sky objects will pass near the Moon.

July 1: the Moon meets the Beehive Cluster

On July 1, at 13:21 GMT, the Moon will get close to M44, or the Beehive cluster. The distance between them will be 3.9°. The cluster will shine at a magnitude of 3.1 in the constellation Cancer, and the 5%-illuminated waxing crescent Moon will be barely visible; look for it in the constellation Taurus.

July 23: the Moon meets the Pleiades

On July 23, at 03:29 GMT, the Moon will pass the Pleiades at a distance of 3.7° while visiting the constellation Taurus. The cluster (magnitude 3.1) will be shining near the waning crescent Moon (magnitude -11.06). Observe the scene via binoculars a few hours before sunrise.

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