M10  NGC 6254) is a globular cluster of stars in the equatorial constellation of Ophiuchus. The object was discovered by the French astronomer Charles Messier on May 29, 1764.
A very nice visual object to behold, it has an apparant magnitude is 6.6 and apparant size of 20 arcminutes. M10 has a spatial diameter of 83 light-years and is estimated to be 14,300 light-years away from Earth and about 11.39 Billion years old which is fairly youthful for a globular.  It is moderately metal–poor as globulars go and its' core region contains a concentration of blue straggler stars, most of which formed 2–5 billion years ago.

My first night on this all went into the bin with horrible seeing, but luckily got one good night, after some early cloud, conditions were much better with fair seeing.
By the time I packed it in around 12:30 (sadly I needed some sleep), it was glorious with a luminous milky way overhead and sky quality hitting 20.2 visual magnitudes per square arcsecond on my Sky Quality meter which ain't bad for the area I'm in.

This is a revised version to take advantage of new improved Pixinsight tools such as GHS  and in particular,  the use of ACDNR lightness masks which work particularly well on rich star fields and greatly helps tame Russell Croman's tools like NoiseXTerminator and eliminates the use of StarXTerminator and so no starless image processing, which has it's place, just not for Star Clusters.

So looks like the endless cycle of reprocessing old data can start again.

It is now summer here in earnest with cloud and hot days and some wild storms. Yesterday was a boiling 44 degree and I had to throw an aluminised blanket over the observatory and hose it down every 20-30 minutes to avoid having to evacuate my gear which would a royal pain. Luckily no bush fires to deal with (so far) but I have my disaster plan ready with sprinklers running off water tanks and a generator to run a pump when they cut the power and water; but that pre-supposes I will have the time as I am only a few kms from where they lost 201 houses in 2013 (luckily no loss of life)  and I have a choice of two evacuation routes.  I hate summer!