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Michael A. Stecker
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Cave Nebula
The Cave Nebula (Sharpless-155) is a dim emission nebula in Cepheus. It is the concave border on the upper left of the image that gives this nebula its descriptive nick name.
Photographic Data: An Astrophysics 155 mm f/7 EDF
refractor and 35 mm camera were
used with hypersensitized Kodak Pro 400 PPF film. Two 50-minute exposures were made centered at RA 22 hrs, 57 min and Declination +62.5 degrees. The field of view is 1.2 x 1.0 degree and north is up. The negatives were stacked, processed, and cropped in the computer. |
