Deconvolution of planetary, solar and lunar images can be achieved as well by switching 'Image Type' to 'Lunar/Planetary'. The difference between 'Deep Space' and 'Lunar/Planetary' mode, is the way reconstructed highlights are treated. In the case of the 'Deep Space' setting, reconstructed highlights are allowed to overexpose (like any over-exposing stars in your image). In other words, dynamic range of the entire image is not adjusted to accommodate the reconstructed detail. However, in the case of a 'Lunar/Planetary' image, reconstructed highlights are allocated additional dynamic range, as to not make them overexpose. Note that this assumes there are no prior over-exposing areas (such as bright stars) in the source image.
Planetary, solar and lunar images will require a much less aggressive de-ringing strategy, so the 'Enhanced Deringing' parameter can usually be safely set to 0%.
There is no one perfect solution, but rather a range of approximations to the "perfect" solution.
The Bin module puts you in control over the trade-off between resolution, resolved detail and noise.
The AutoMask feature is able to generate a suitable mask in most cases by selecting 'Auto-generate mask'.
The latter settled SNR-measurements can than be taken into account by the Regularization algorithm to yield the most appropriate results for your image.
The way a point light is blurred like this, is also called a Point Spread Function (PSF).
You can convert everything you see to a format you find convenient. Give it a try!