Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  M 39  ·  NGC 7092
M39, AlBroxton
M39
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M39

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Description

Open Cluster M39 (also known as Messier Object 39, Messier 39, M39, or NGC 7092) is an open cluster in the Cygnus constellation. It was discovered by Charles Messier in 1764. M39 is at a distance of about 800 light years away from Earth. Its age is estimated to be from 200 to 300 million years. It is located at Right Ascension 21 hours, 32.2 minutes, and Declination +48 degrees 26 minutes. It has a magnitude (brightness) of 5.5It lies only 800 light-years from Earth, which makes it one of the closest open clusters in the sky. The cluster has a diameter of about 7 light-years, and is believed to be over 250 million years old. With a visual magnitude of 5.2, it is a bright cluster although very loosely populated. This cluster is an easy target for binoculars and is best observed in telescopes at low power.

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M39, AlBroxton