The Owl Nebula M97 in Ursa Major, including the Hickson Compact Group HCG50.
This image consists of a stack of 12 eight minute luminance images,
and stacks of 8 eight minute images taken through Hα and OIII filters.
The Hα data was used for the red channel, with the OIII data being used
in equal parts for the blue and green channels.
The images were acquired using an SXV-H9 CCD camera through a Tele Vue NP101 4" f/5.4 refractor.
The images were calibrated, defect-corrected, stacked and auto color-balanced using AIP4Win V2.
This image has been resampled down from its full size of 1291 x 1009.
The chart below identifies the brighter objects in the field of the image.