There isn't one "best" image size for astrophotography, as the ideal size depends on various factors like your camera, telescope, and the specific object you're photographing.
Here are some key considerations:
- Resolution: Higher resolution images allow for more detailed cropping and enlargement, which is beneficial for capturing faint objects.
- Field of View: A wider field of view captures more of the sky, which is ideal for capturing vast landscapes or star fields.
- Pixel Density: Higher pixel density can lead to more noise, which can be detrimental to the quality of the image.
Ultimately, the best image size is a balance between these factors, and it's often a matter of personal preference.
For example, if you're photographing a bright object like the Milky Way, a lower resolution image with a wider field of view might be sufficient. However, if you're targeting a faint nebula, a higher resolution image with a narrower field of view might be necessary.
