M33

[Rodd]

I decided to reshoot M33.  I was never satisfied with my previous attempt and I lost the data, so I am stuck with the image.  My goal was to keep it as natural as possible, and not over saturated.  I probably could have been a little more liberal in hind sight.   I have included a close up of a spiral arm and the great Ha emission region NGC 604, which is 1,500 times bigger than M42.  I bumped the saturation in the spiral arm image, which is a crop of the main image.

TOA 130 with .7x reducer and ASI 1600.  32.3 hours (but 13 or so is Ha). Ha 157 300 sec; Red 125 120 sec; green 121 120 sec; Blue 116 120 sec.

 

[Sunshine]

Fantastic image, the hours on Ha really paid off as those regions really pop.

Beautiful!

[Rodd]

Thanks Sunshine.  When the Moon is up, there is not much else to do.  Data can pile up!

[alan potts]

Stunning detail but then look what you took it with. Great iamge Rodd.

Alan

[alpal]

Excellent data and processing.

Did you use some of the Ha for luminance?

[Steorra]

Amazing image, I love when Ha is intergrate with galaxies it just makes them look so much better.

[Rodd]

2 hours ago, Steorra said:

Amazing image, I love when Ha is intergrate with galaxies it just makes them look so much better.

Thanks Steorra.  I agree, as long as the Ha is not overdone, which for me is usually a pitfall 

[Rodd]

3 hours ago, alpal said:

Excellent data and processing.

Did you use some of the Ha for luminance?

Thanks Alpal.  I did not use Ha as luminance, but I did insert a small amount of Ha into the luminance stack.  Just a touch

[Rodd]

5 hours ago, alan potts said:

Stunning detail but then look what you took it with. Great iamge Rodd.

Alan

Thanks Alan

[andrew s]

Fine image @Rodd, I am always in two minds as to if the H alpha overpowers the rest of the image or not.  Do they out shine the blue knots of massive stars.  Clearly personal preference. 

Regards Andrew 

Edited November 25, 2020 by andrew s

[Rodd]

1 hour ago, andrew s said:

Fine image @Rodd, I am always in two minds as to if the H alpha overpowers the rest of the image or not.  Do they out shine the blue knots of massive stars.  Clearly personal preference. 

Regards Andrew 

Well, I did boost saturation in the crop as it makes a better image I feel.  But your right--most M33s are overstated and most Ha inclusions (mine especially) are to red.  Here's a straight crop--no saturation adjustment.  Any less than this and one might as well not add the Ha.  I think the blue stars could be more saturated--but this is how they came out.  Poor skies do have draw backs

[Dalepenkala]

Nothing wrong with at image! Congrats!

[Jamgood]

Awesome!

[alpal]

15 hours ago, Rodd said:

Thanks Alpal.  I did not use Ha as luminance, but I did insert a small amount of Ha into the luminance stack.  Just a touch

But you didn't mention Luminance here:

"32.3 hours (but 13 or so is Ha).   Ha 157 300 sec;     Red 125 120 sec;      green 121 120 sec;      Blue 116 120 sec. "

[Rodd]

1 hour ago, alpal said:

But you didn't mention Luminance here:

"32.3 hours (but 13 or so is Ha).   Ha 157 300 sec;     Red 125 120 sec;      green 121 120 sec;      Blue 116 120 sec. "

Sorry. I forgot. I collected 224 120 sec lum subs

[Rodd]

2 hours ago, Jamgood said:

Awesome!

Thanks Jamgood

[Rodd]

2 hours ago, Dalepenkala said:

Nothing wrong with at image! Congrats!

Thanks Dalepenkala

[MartinB]

Fabulous!  Well done Rodd.

[Rodd]

6 hours ago, MartinB said:

Fabulous!  Well done Rodd.

Thanks Martin