EasyNR Noise Reduction
Image noise is something we always have to deal with in our astrophotography images- but removing that noise doesn't always mean sacrificing detail. A few years ago while experimenting in Photoshop, I discovered an effective way of smoothing out most of that noise, while preserving detail where it matters, and EasyNR was born. I partnered with PhotographingSpace.com to sell these Photoshop Actions (along with some great actions they developed), but I'll go over the process below to do it yourself manually, tailored to each image.
If a one-click solution in Photoshop is more your style, you can purchase the EasyNR Actions through my friends at PhotographingSpace.com here