Here's the home of 2020's 'Image of the Month' pictures. Enjoy!
Image of the Month for May 2020: Messier 106
Messier 106 is a spiral galaxy that acts as a giant 'maser' or microwave laser. The thinly spread water molecules that cause this effect, visible only to radio telescopes, can still be detected in visible light images as they give the galaxy its distinctive purple colour.
Image of the Month for April 2020:
Revisiting M51, the Whirlpool Galaxy. The image is comprised of RGB channels plus a luminance layer and an additional Ha component in the red layer.
Image of the Month for March 2020: The Orion Nebula
The Orion Nebula, Messier 42. The raw data for the image is Ha, Sii and Oiii. The image maps the channels RGB (the Oiii (blue) signal has been adjusted to remove the magenta cast caused by the (red) Ha component.
Image of the Month for February 2020: The Rosette Nebula
Two different processings of a narrowband image of the Rosette Nebula in Monoceros. The raw data for both images is Ha, Sii and Oiii. The first one maps the channels RGB (the Oiii (blue) signal has been adjusted to remove the magenta cast caused by the (red) Ha component. The Sii areas are golden. The second processing uses the 'Hubble Palette' which is often used for images taken with the Hubble Space Telescope.
Image of the Month for January 2020: The Heart Nebula
Far from perfect, this image is my first attempt at a H-alpha/Oxygen-II image using a mono camera.