Some night sky objects are truely huge. The problem is that they’re hard to observe as their surface brightness is low and they require a large wide field telescope and a very dark sky to actually eyeball them. One such object is Sharpless 220, a.k.a. NGC 1499, a.k.a. The California Nebula in Perseus. This extends almost 2.5 degrees, or about 3 moon widths.
This picture was taken with a Canon 75-300mm zoom lens mounted on my QHY9C. Focal length was 135mm providing a 7.7 x 5.7 degree field. 12 5 minute exposures were combined and the light pollution gradient removed with GradientXterminator.
