You don't need a PhD to understand noise in astronomical images — here's an introduction to the various sources of noise in astrophotography and how to combat them.
Is it possible to settle the PixInsight vs. Photoshop debate once and for all? Yes: Learn both and gain the skills you need to make better astrophotos!
Capturing crystal-clear astro images involves a delicate balance of having just enough pixels for the object you're imaging. But you don't need a PhD to understand the sampling theory that's involved.
Knowing your astrophotography setup's pixel scale will help you take better pictures. And to determine pixel scale, you first need to know your field of view.
Good weather for imaging is about more than just the clouds! Even if it's cloud-free, you'll need to understand if the seeing and transparency are good.
Astrophotographer Richard S. Wright, Jr. embarks on his imaging blog. Join him each month to learn how to get the most out of your imaging equipment.