Vega is a bluish-white star, two and one half times th
The Ring Nebula is a planetary nebula in the Constellation Lyra. The central star is the remainder of a sun-like star which will eventually cool down to become a white dwarf. The Ring Nebula is very easy to locate between Sheliak and Sulphat.
Through my 8 inch telescope using a 20 mm eyepiece (50X magnification) the Ring Nebula shows itself as a hazy ring. Slightly more detail may be detected with a 2x or 4x barlow but any color or central detail such as the central star is not apparent. I found that the Orion Ultra Block Filter is quite useful for finding this type of nebula but gives no more added detail … just a bit more contrast
The following is a video in avi format taken for less than 30 sec and the resultant images derived from stacking and processing shown below.
The images above were taken with the same telescope but using a ZWO 224 camera and Sharpcap software. The top images were derived from an avi video file less than 30 sec and stacked in Registax. The resultant Tif file was processed in Lightzone, converted to a Jpg and the clarity increased again in Windows Photo Editor. The bottom file was from a Ser video file acquired with the same camera, using Firecapture.
Notes: I did not do precise polar alignment but this was not a problem using the ZWO 224 camera as the images are acquired rapidly allowing more images to be acquired before motion affects the image. However the resultant avi and ser videos of less than 30 sec produced a surprisingly more detailed image…the center stars of the nebula could now be seen. (see cropped image, top right)