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M33 - 2nd Attempt

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#1 danoon

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Posted 16 October 2021 - 05:28 PM

This is 2 new nights of data where I used the best 9h44m out of 14h50m.  Compared to my first version which had 13h48m, I feel like see more detail, especially when zooming in something like NGC 602.  That nebula has more structure now.

 

My star shapes still need a little work, I increased my back focus by 5mm, but I think it was too much.  Some of the stars in the subs looked a little elongated pointing around the center instead of towards the center like my previous work.

 

In my editing, I decided to add a bit more blue for the arms and saturation.  I'm still trying to figure out what I like as far as processing.  I think I like it more than my whiter version, but I'm not sure (https://www.astrobin.com/0lyurc)

 

At the end of the 2nd night, it was pretty close to finishing, but failed to make the filter changed.  When I went out to look at the telescope it was just making that horrible buzzing sound of a jammed filter wheel.  This isn't the first time the wheel jammed on me.  I need to figure out if there is a way to adjust the QHYCFW3 to make this less likely.

 

Full size at https://www.astrobin.com/azqal4/

 

As always, comments and suggestions welcome.

 

My Info

Telescope: Stellarvue SVX140T

Camera: QHY600M

Mount: iOptron CEM60EC

Bortal: 5

Blue: 63x120s
Green: 77x120s
Red: 71x120s

Ha: 32x300s

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  • M33-2021-Oct-4.jpg

Edited by danoon, 16 October 2021 - 05:39 PM.

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#2 imtl

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Posted 16 October 2021 - 05:40 PM

That 140mm apo is really pulling forward. Excellent stretching. 



#3 zakry3323

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Posted 16 October 2021 - 05:43 PM

I had a filter in my wheel that would jam all the time. I took them all out and spun each filter through one at a time until I found it. Though fully screwing into place, the filter housing was just a hair proud and would catch on the filter wheel housing somewhere. I sanded it down flat with fine sandpaper on plate glass and re-blackened it, no problems after that. 

 

Finding just the right backspace can be a little frustrating, but that's shaping up to be a really excellent M33! I do agree with you, I like the white-er version on Astrobin a bit more. 



#4 danoon

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Posted 16 October 2021 - 06:46 PM

That 140mm apo is really pulling forward. Excellent stretching. 

So far I've been pretty happy with ez soft stretch + light room.  Maybe when I get some more experience I will learn to stretch manually to get exactly what I want.

 

I had a filter in my wheel that would jam all the time. I took them all out and spun each filter through one at a time until I found it. Though fully screwing into place, the filter housing was just a hair proud and would catch on the filter wheel housing somewhere. I sanded it down flat with fine sandpaper on plate glass and re-blackened it, no problems after that. 

 

Finding just the right backspace can be a little frustrating, but that's shaping up to be a really excellent M33! I do agree with you, I like the white-er version on Astrobin a bit more. 

I opened up the filter and could feel a small resistance when moving it manually where it jammed.    I loosened the center bolt a little, assuming it had to do with tension and put it back together.  We will see how it goes.


Edited by danoon, 16 October 2021 - 07:25 PM.

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#5 ChiTownXring

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Posted 16 October 2021 - 11:40 PM

I also like the white version. To me the white versions focus looks better unless the blue versions nebulosity is playing tricks on my eyes..


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