Some deep sky photos captured during a trip to Anza Borrego desert park.

Pentax K1-mII
Tamron Adaptall 60b 300mm f2.8 lens

These are all very nice. Did you use astrotracer or an equatorial mount? The spikes are very prominent in the Horsehead, but that shows the colours very nicely.

Hi @HoutHans, I am using an equatorial mount (IEQ35 pro). I had stopped down the lens to f4 from f2.8 and the hex aperture aggravated the diffraction spikes.

Hi Sinharay,

I just noticed the questions about dithering, so I guessed that you are using an equatorial mount. A quick Google search just learned me that this is a nice dark area and that shows in the great results.

Those are some nice skies.

Awesome images

Nice work! Your star colors are beautiful and I really like how you've rendered the Andromeda galaxy. Can you share your settings for these (exposure length/stack data/processing tips/etc)?
I haven't got my K1 yet, but I have done a bit of other astro imaging with adapted m42 lenses. To avoid any effects of the lens aperture blades you can use a trick with step down rings or an aperture mask to stop the lens down.
This is an interesting read and goes further into what I mean...
Step down rings - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights

How did I miss this??

Anyway, seems like you were very busy out there! I particularly like the M31 shot. Very well done. Can you provide exposure details? Did you stop the lens down for that one (or any of them) or shoot wide open?

Nice one of M31. Very similar to one I got last Oct. I used a WO Redcat series so I don't have the diffraction spikes (which on yours look very nice) . Love the color in the stars something a lot of Andromeda shots fail to capture.

Great star color in M31 too.