These pictures were taken with a Nikon Coolpix 4300 handheld over the ocular on my ETX-125

They were edited with Photoshop Elements - Auto levels and Auto Contrast then an unsharpen mask

I didn't need to reduce noise in the black areas since the built in noise reduction in the Coolpix completly eliminated it.

Here i got very lucky with longer exposure time and higher magnification i was able to shoot Jupiter

No editing was possible, just not enough to work with here. It's just cropped down