M33 1st Ever go.

[Stu Wilson]

My first go at imaging M33 last night.

32 x 180sec subs.

5 x darks.

20 x dark bias.

 

[serbiadarksky]

Nice image!

Can you tell me what mount scope guide etc u use?

[Stu Wilson]

Sw200P NEQ6PRO Mount. Canon 650d. Orion starshoot autoguider. Running PHD2 for guiding.

DSS and PSP for stack and processing.

[carastro]

That's pretty good for 180sec subs on a DSLR.  It's a but blue and noisy, but the noise will reduce with more exposures and the blue can be sorted out in processing.

Stars are a bit elongated in the corners, I suspect spacing is wrong.  

Carole 

[Stu Wilson]

Dont think focus is 100 percent.

Bahtinov mask in post :-)

Would the newtonion not give odd shaped stars towards edge too. (No coma corrector).

[iwols]

looking good

[bobro]

That's a great first attempt at M33 - lots of nebulosity detail captured. As you say, coma towards the corners as no corrector fitted. With only 5 darks image noise could be made worse. You could try stacking without the 5 darks to see what happens.

Flats are easy to take and will make a good difference to the final image. M33 is not a bright target and needs lots of exposure time in order to reduce noise. The background sky is a bit bright - making it darker will help reduce the apparent noise.

Guiding has worked very well.