It's hard to really tell from the small versions here — which is a lesson in itself, because at 1280x850, which is a perfectly fine online viewing size, the differences really don't matter that much.
However, in this case, I think Auto probably did make some better choices.
You picked ¹⁄₆₀th of a second. This is fine, but probably slightly ...
The photo looks like I did not focus properly. However how can I focus if the stars are indefinitely far away from us?
For stars, you need to manually focus.
How to do it with a modern DSLR / MILC:
First, find some very bright star
Select the live view mode
Aim the camera at the very bright star
Zoom in the live view (not the lens!) as much as ...
Everything should be set to manual, nothing should be automatic. What's happening is the camera is trying to compensate/adjust for each and every frame. Turn off any setting that would automatically adjust anything.
I made one once, I thought I had everything set correctly and when I rendered it to video it did the same light variance/flickering that you ...
What you are seeing is the result of dust on your sensor, not on the lens.
Most modern Digital SLR and mirrorless cameras have a sensor self cleaning mode. Check your manual for instructions on how to use the self cleaning system, or how to manually clean the sensor yourself using a blower or other methods.
You can also have a camera shop clean your ...
Focus assist should be available when pressing the button on the rear command dial.
Focus Zoom If ON is selected for AF/MF SETTING > FOCUS CHECK, the
camera will automatically zoom in on the selected focus area when the
focus ring is rotated.
If STANDARD or FOCUS PEAK HIGHLIGHT is selected for AF/MF SETTING > MF
ASSIST, zoom can be adjusted by ...
What you are trying to do is accomplished by a technique known as bulb ramping, or bramping (see: What is bulb ramping?), where the camera's exposure is gradually changed to accommodate changing lighting conditions. There are several commercial products and open source projects that bulb ramp cameras to create smooth timelapse sequences without jarring ...
When you change to a different tool, the part of the image you have selected (that is, the part inside the border box) is expanded to fill the space. The part you have not selected (that is, the part outside the crop you have selected) is no longer shown.
If you have not selected a crop, then the camera has done it automatically. Many mirrorless cameras ...