Rob Hawley's Pages | Almaden Observatory Main Page |
These pages show my work to photograph the NGC 281 in narrowband.
I captured Hydrogen, Nitrogen, and Oxygen data from August to October
2011. The Sulfur data was captured in Nov-Dec 2011.
Click
on either of the thumbnails for a full size picture.
NGC 281 using the HNO Palette{reprocessed 1/3/12} |
CFHT palette HOS |
NGC 281 using the CFHT HON Palette |
As with NGC 6888 the different
palettes highlight different parts of the image. Note the better
definition of the dust globules in the HNO image. The CFHT images show the
central region that has a higher concentration of O III. The HOS image
also highlights the dust globules.
The image above consists of
Filter |
#
Exposures |
---|---|
Hydrogen |
57 x 900 sec |
Nitrogen |
54 x 900 sec |
Oxygen |
54 x 900 sec |
Sulfur |
51 x 900 sec |
From Wikipedia
NGC 281 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm.