Starting out in Astronomy and especially astrophography can be quite the challenge. After all, there are many pieces that need to work together seamlessly for it to go as planned. Here you will find a list of resources that will prove useful to beginners and also more seasoned astronomers.
What can I expect an object to look like/frame like in my system?
Check out: https://astronomy.tools
The calculator lets you pick your exact telescope and camera combination (or eyepiece focal length) and the object you want to image so you know exactly what to expect.
How can I get started in editing my astro images in a free, effective and simple way?
Check out: https://siril.org
A wonderful tool (that works on Mac too!) to process astro images. Very effective, yet simple and free to use. It produces great images out of the box in just a few simple steps. Gets you 80% of the result for 20% of the work.
What to set the flattener setting to on my William Optics refractor?
Check the description (on this website) of your specific telescope and/or flattener and the settings will be indicated for situation.
Is the collimation on my telescope OK?
Check out: http://www.astrophoto.fr/collim.html
While not usually application to refractors, this is something essential to understand and set up correctly with telescopes as the difference is night and day. The above resources provides detailed explanations on the whole process.
What is there to see in the sky tonight?
Check out: https://stellarium.org
This free planisphere will help you plan your imaging and astronomy nights ahead.