I have observed Messier 19 twice. The first observation was on 26 September 2014 at the Okie-Tex Star Party using a 12” Skywatcher Dobsonian: Faint. Bright, egg shaped. Not highly concentrated. No stars resolved.
The second observation was on 14 September 2015 at the Okie-Tex Star Party using a 12” Skywatcher Dobsonian: Class VIII globular cluster. Not overly bright overall. Has a well concentrated core and a large halo. About 33,000 LY distant.
I obtained the calibrated lights frames used to create the final image from Telescope Live. The frames were imaged by the CHI-1-CCD Telescope at the El Sauce Observatory.
Note: One of the most oblate of the GCs. This flattening may not accurately reflect the physical shape of the cluster because the emitted light is being strongly absorbed along the eastern edge. This is the result of extinction caused by intervening gas and dust. When viewed in the infrared, the cluster shows almost no flattening. 110 LY in diameter. A neighbor of M62.
Shapley Sawyer Classification: VIII
Distance: 28,706 LY
Type: Hub Globular
Position w.r.t. core of galaxy: Right above the center of the galaxy.
Any stars resolved: No
Undergoing Core Collapse: No
Created with SkySafari 6 Pro.
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