M75 / NGC 6864

Designation(s)M75 / NGC 6864
Object Type(s)Globular Cluster
Relevant Catalog(s)All (Chron), Messier, NGC
Obs. Lat/Long42° 17', 073° 57'
ConstellationSagittarius
Date and Time Observed2024-09-03 00:15:00
InstrumentEdgeHD 8" f10-2,032mm FL
CameraASI294MC-Pro
Image DetailsUp is 270.8 degrees E of N. Exposures 30s@305g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding.
DescriptionAnother Méchain discovery, recorded October 18, 1780: `Nebula without star, between Sagittarius & the head of Capricorn; seen by M. Méchain on August 27 & 28, 1780. M. Messier looked for it on the following October 5, & on October 18.... M. Messier saw it on October 5; but the Moon being above the horizon, & it was not until the 18th of the same month that he was able to judge about its form & determine its position.' <--> This is the second dimmest and smallest Mesier GC, after M72. At Dec -21 it is visible from my backyard, so I could view it in the EdgeHD. Herschel described it as a miniature M3, which seems apt. Both are relatively circular GCs
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