Cone Nebula, Christmas Tree Cluster and Hubble's Variable Nebula
Date: February 2000
Location: Tucson Arizona - Empire Ranch Dark Site
Equipment: 4" f6 Refractor, G11 Mount, ST4 and Taurus Tracker III
Conditions: Dark and Steady - wind picking up
Film: Kodak PPF400 Hyper-sensitized
Exposure: 2 X 60 Minutes
Comments: My first use of "hypered" film. In the 1 hour photo prints the cone and surrounding nebulosity was not visible. When I stacked the digital images in Picture Window and stretched the contrast in Photoshop the nebula became visible. This object will require longer exposures and more negatives to stack. I want to try this with PJ400 non-hypered!