The Blinking Nebula, with the moon washing out other dim DSO I had planned to sketch I took a look in an area away from the moon. The blinking nebula lived up to its name -- Without the ultrablock filter the nebula 'blinks' away when you look directly at the central star, and 'blinks' back into view with averted vision. With the ultrablock filter the blinking goes away, the nebula holds steady with direct vision, but I can no longer make out the central star. A tradeoff in views.