Copernicus Crater

This is the Copernicus moon Crater I imaged last night with my skywatcher 250PDS, qhy5-ii mono and celestron X-Cel 2x barlow.

Captured 10,000 frames chose the best 10%. Image stabilised in Pipp and Stacked in Registacks.

Hand-held photos of lunar surface taken with Samsung S10+ phone through eyepiece on Orion 10 inch Dobsonian Telescope plus equatorial platform 29/5/2020

Hand-held photos of lunar surface taken with Samsung S10+ phone through eyepiece on Orion 10 inch Dobsonian Telescope plus equatorial platform 29/5/2020.

Lichfield, UK

Some of these using 3mm equivalent eyepiece – the equatorial platform really helps stabilise the image.



My first colour image of Moon

I processed my moon date from other night using Photoshop – single images aligned and “stacked” in Nebulosity individually – I aligned all together then stacked individually (yes one file only each time!) to create image for each colour then combined in Photoshop.

My first ever attempt at producing enhanced colour image of moon, using LRGB filters on Altair Astro 183M camera. Sky Watcher Equinox Pro 80mm OTA on NEQ6 mount, unguided 0.05 second exposures.

Four versions below…..but which is right? (Does that question have meaning?)

NB Neil Wyatt sent me an excellent little technique in Photoshop for helping to balance colours in such images: “I have a sneaky technique. Put a colour balance layer over the picture. Then a hue saturation layer. Turn saturation to the max. Now go to the colour balance layer and adjust the saturated image one channel at a time. You’ll find that each channel has a sweet spot with maximum diversity of colour.  They interact though so go round several times making small adjustments. When your image is a riot of colour, ease back the saturation”



A Great Big Thump

Came back from a nice family night out on Friday to a lovely clear view of 95%ish moon- had a lovely hour taking some pictures. After doing lots of DSO lately, where the pursuit of greater quality is leading to ever longer integration times it was nice to just wander round the disc of the moon and take (relatively) quick captures.

These are my 3 favourites- the same technique was used on all three- a one minute video using ASI224 camera, then Autostakkert to identify and stack the best 5% of frames and finally Pixinsight to crop and sharpen using the Multiscale tool (similar to Wavelets in Registax) and then tweak the levels.

First one is the Copernicus crater and associated impact debris. I tweaked the curves quite a lot to bring out the spoil from the impact. From Wikipedia, the crater itself is 93km wide, using the Pixel scale I make the main disk of debris around it 400km wide, whilst Wikipedia thinks the rays extend for twice that. That’s quite an impact!!!

Next up is another impact- here’s the smaller Proclus crater, with the rays of the impact spreading out over Mare Crisium:

Finally- here’s the Aristarchus Crater with Schroter’s Valley (which is the sinuous rille extending up from Aristarchus in the middle of the image) being really nicely illuminated on its southern wall.