James Janusz 2000 thru 2020 All Rights Reserved |
Telescope: Astro-Physics 160 EDF | Description:Messier 9 or M9 (AKA NGC 6333) is a globular cluster in the constellation of Ophiuchus. It is positioned in the southern part of the constellation to the southwest of Eta Ophiuchi, and lies atop a dark cloud of dust designated Barnard 64. The cluster was discovered by French astronomer Charles Messier on June 3, 1764, who described it as a "nebula without stars". In 1783, English astronomer William Herschel was able to use his reflector to resolve individual stars within the cluster. He found the cluster to be 7-8' in diameter with stars densely packed near the center. M9 has an apparent magnitude of 7.9, an angular size of 9.3'. It is one of the nearer globular clusters to the center of the Milky Way Galaxy with a separation of around 5,500 light-years from the Galactic Core. Its distance from Earth is 25,800 light-years. (Wiki) |
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Mount: Astro-Physics AP1600 GTO | Constellation: Ophiuchus |
Camera: SBIG STX 16803 with Astrodon Ver. 2 Filters | Remotely Imaged With CCD Commander |
Guiding:SBIG ST402 Guider | Type: Globular Cluster |
Exposure Data: RGB three hours each | Position: R.A. 17h 19m 11s Dec -18° 30' 58s |
Processed using Maxim data aquisition, PixInsight and PhotoShop image processing | Date: May 2020 |
Data Acquisiton, Reduction and Processing by Jim Janusz | Imaging Location: Cave Creek Canyon Observatory |
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