Dithering and the Iris Nebula, a Blue Gem of Beauty
HOW TO GET BETTER ASTROPHOTOGRAPY IMAGES Recently, I focused my telescope on the Iris Nebula for over four hours. It is an amazing brilliant blue gem in the night sky. Getting great images in the night sky is a lot of fun, but there are a number of techniques you can do in order to get better images. Dithering is one of them. What is dithering and why it is important? ALL THAT NOISE NOISE NOISE! When you are recording, whether it is audio or visual, most of us want the true representation of what we are hearing or seeing. In technical terms, we want the signal to be faithfully recorded and reproduced. Anything that deviates from that signal is noise. Unwanted fluctuations. Additional information that should not be there. When I am recording audio outside, I am doing my best to eliminate all sources of noise from my videos. A passing vehicle, a random dog barking, crickets humming, or wind noise in the background. Other types of audio noise are hisses, hums