Number 603 of Lynds' Catalogue of Bright Nebulae is a very faint nebula in Cassiopeia. Lynd catagorized these nebula on a scale of one to six, with six being the brightest. The is a six. This is an 8 hour exposure from October 11-16. It’s easy to pick out the dust against the starry background. Click on the image for a larger version.