By Don Lynch | 2025-08-05
Orange Moon
On 08/05/2025 09:20 pm by Mandy Daniels | Website | Derbyshire, UK
The sequence of images to be stacked for the final right hand image were captured first at a colour temperature of 2500 K, to obtain a natural looking Moon which was actually glowing deep orange due to smoke from the wildfires in Canada and also being so low in the sky.
The left hand image was produced from a stack of original frames captured at a colour temperature of 6500 K which matches that of bright sunlight on a clear day and gives the Moon the deep orange hue that was apparent to the naked eye. Neither image has been further processed for colour balance and they are as captured by the camera, other than as noted elsewhere. The exposure was identical for both images and much greater than would usually be required for the Moon at this phase and altitude.
Due to the low altitude of the Moon, the telescope, which is normally Dobsonian mounted, was used with the Skytee 2 mount on a tripod. This allowed imaging over the garden fence and through a gap between trees and a house opposite, which gave a window of just 20 minutes within which to capture the frames.
Other data for the images are provided on the photo. All times are UTC.
Exposure for each image: f/5.9, 1/25s, ISO-800
Focal Length: 1200 mm
Nikon D800
Skywatcher 200P
Skytee 2 Mount on Skywatcher 1.75" tripod
PIPP & AS3: Select and stack 50% of images for each photogaph.
GIMP: Combine the two final images, sharpen slightly. No colour adjustments.