NGC 891: Edge-on Spiral in Andromeda
Click on image for larger version.
|| This galaxy is perhaps the most beautiful example of a
near-by spiral galaxy viewed edgewise. Note the small companion galaxies
above and beneath the disk. This particular galaxy is of interest to
astronomers that study the dynamics of material in the galactic plane
of spiral galaxies. In this example, there are sprays of material (gas and
dust) that are being accelerated perpendicular to the disk. This effect
is not well-understood. Please see this
medium resolution image first in order to
appreciate the sky surrounding NGC 891.
Meade 16in LX200 telescope operating at f/10
SBIG ST8E CCD camera with color filter wheel
color production was used to create this image.
Luminance = 60 minutes
Red = 20 minutes
Green = 20 minutes
Blue = 40 minutes
One iteration of L-R deconvolution (sharpening) algorithm using
CCDsharp was applied to the luminance image.
The AO unit was used for this image.
The times above apply to each of the frames for this mosaic. (2 frames)
The seeing was not great- but good enough to be to resolve some of
the inner galactic structure.
Digital Developement (DDP) via Maxim/DL was also used in order to
display the the very dim and very bright details of the image simultaneously.
Minimum credit line: Adam Block/NOAO/AURA/NSF
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