NGC 6618 (M17) Sgr

1999-08-03 02:00:15UT

This is a combination of 4 images, each of 480 seconds The images were taken with a Pictor 416 attached to an Meade 10" F/2 telescope. A Pictor 201XT was attached to an ETX for guiding. Each of the images was corrected with a dark frame and a flat field. After combining, the image was logarithmically stretched.

The second image is the same basic image, but with a Gaussian Equalization enhancment applied with a wide range of pixel values included. This provides a view of fainter nebulosity that is frequently missed in images of the Swan Nebula