skypointer2000
Towards Orion
Before you draw your conclusions about this image, please read the description.
The sky and foreground were captured back to back at the same focal length and with the same equipment from a single tripod position.
The camera position was roughly 2 miles away from the mountain station, and the telescope/camera combination has an extremely narrow field of view of only 1.5° x 2°. The resulting telephoto compression makes the otherwise tiny Orion Nebula appear huge.
Two years ago, I had already captured a similar deepscape, but I was never really satisfied with it. The problem was lacking data for my sky, especially in the green channel, as clouds moved in towards the end of the imaging session.
Of course, I could have recaptured the missing data or the entire Orion Nebula from a different place, but that's not my style. After waiting two years for an opportunity to reshoot the image, I finally got my chance this February.
The weather this time was perfect, which made capturing the sky pretty straightforward, but otherwise, the conditions were still as demanding as 2 years ago.
Getting the foreground in focus with a monochrome micro 4/3rd astro-cam and RGB filters through a 500mm f/5.6 telescope is a real pain. Furthermore, snowcats grooming the slopes caused constantly changing, extremely bright illumination. Considering this, I am quite happy that I was able to capture a usable foreground.
EXIF
Camera: ZWO ASI 1600MM Pro (cooled monochrome MFT astro-cam)
Telescope: William Optics Megrez 88 (500mm f/5.6)
Filters: Baader HaRGB
Other equipment: ZWO EFW and EAF
Autoguider: ZWO ASI 385MC
Mount: Equatoriallly mounted Skywatcher AZ-GTI
Rig control: ASIair
Sky:
25min RGB (each)
21min Ha
Foreground:
5x 60s RGB (each)
10 x 60s Luminance
Towards Orion
Before you draw your conclusions about this image, please read the description.
The sky and foreground were captured back to back at the same focal length and with the same equipment from a single tripod position.
The camera position was roughly 2 miles away from the mountain station, and the telescope/camera combination has an extremely narrow field of view of only 1.5° x 2°. The resulting telephoto compression makes the otherwise tiny Orion Nebula appear huge.
Two years ago, I had already captured a similar deepscape, but I was never really satisfied with it. The problem was lacking data for my sky, especially in the green channel, as clouds moved in towards the end of the imaging session.
Of course, I could have recaptured the missing data or the entire Orion Nebula from a different place, but that's not my style. After waiting two years for an opportunity to reshoot the image, I finally got my chance this February.
The weather this time was perfect, which made capturing the sky pretty straightforward, but otherwise, the conditions were still as demanding as 2 years ago.
Getting the foreground in focus with a monochrome micro 4/3rd astro-cam and RGB filters through a 500mm f/5.6 telescope is a real pain. Furthermore, snowcats grooming the slopes caused constantly changing, extremely bright illumination. Considering this, I am quite happy that I was able to capture a usable foreground.
EXIF
Camera: ZWO ASI 1600MM Pro (cooled monochrome MFT astro-cam)
Telescope: William Optics Megrez 88 (500mm f/5.6)
Filters: Baader HaRGB
Other equipment: ZWO EFW and EAF
Autoguider: ZWO ASI 385MC
Mount: Equatoriallly mounted Skywatcher AZ-GTI
Rig control: ASIair
Sky:
25min RGB (each)
21min Ha
Foreground:
5x 60s RGB (each)
10 x 60s Luminance