Target Details
The moon is Earth's only satellite, it is one of the largest natural satellites in the Solar System. The average distance of the Moon from the Earth is around 240,000 miles, or just over one light-second.
The Moon is thought to have formed about 4.51 billion years ago, not long after Earth. There are several hypotheses for its origin; the most widely accepted explanation is that the Moon formed from the debris left over after a giant impact between Earth and a Mars-sized body called Theia.
The Moon is in synchronous rotation with Earth, always showing the same face, with its near side marked by dark volcanic maria that fill the spaces between the bright ancient crustal highlands and the prominent impact craters.
The image features a couple of well known transient features, the Lunar 'X' and Lunar 'V'. An annotated image can be found here.
Capture Details
Data captured 1st February, 2020.
206x 1/10s through Ha filter.
Equipment Details
Skywatcher Quattro 200 CF
NEQ6 Pro
Atik 460EX Mono
Processing Details
This image was processed in Registax, Pixinsight & Lightroom.
Alignment & Stacking completed in Registax, best 70% of images, exported as 32bit FIT.
Stacked image imported into Lightroom.
Histogram Transformation - To stretch the image, it was a bit too bright.
Unsharpmask - To sharpen very slightly, with range mask to protect background.
Export as JPEG and import into Lightroom.
Multiple graduated filters to reduce exposure by 1 stop around outer disc to get even exposure across surface.
Increase Exposure (+0.50)
Reduce Highlights (-15)
Reduce Blacks (-10)
Export final JPEG for upload.