I have observed this object two times. The first observation was on 21 September 2014 at the Okie-Tex Star Party using a 12” Skywatcher Dobsonian: Concentrated core. Appears to have a good-sized halo.
The second observation was on 13 September 2015 at the Okie-Tex Star Party using a 12” Skywatcher Dobsonian: Class III Globular Cluster that is located about 68,000 LY away. It is bright and its core is well concentrated. No individual stars were discernible.
I obtained the calibrated lights frames used to create the final image from Telescope Live. The frames were imaged by the CHI-1-CMOS Telescope at the El Sauce Observatory in Chile.
Note: 175 LY in diameter. M54 is located near the center of the Sagittarius Dwarf Galaxy. It is either a globular cluster that has fallen to the center of the galaxy or it is its actual core.
Shapley Sawyer Classification: III
Distance: 87,422 LY
Type: Sagittarius Dwarf Galaxy Globular
Position w.r.t. core of galaxy: Below the disc on the far side of the core of the Milky Way.
Any stars resolved: No
Undergoing Core Collapse: No
Created with SkySafari 6 Pro.
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