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eshy76

M33 The Triangulum Galaxy in HaLRGB

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Hi everyone!

I've taken advantage of most of the clear nights recently, so after my recent M31, here is M33! 

This is my second capture of this beautiful spiral galaxy - last year's effort was one of my first with my mono camera...hopefully a year on, some improvement has been made in terms of capture skill and processing!

Captured with APT, pre-processed with APP and post-processed with Pixinsight. This is a heavy crop of the original image, which I will look to include in the next post.

6.9 hours total integration time using William Optics Z73 atop a iOptron CEM25P and the ZWO ASI1600 MM Pro camera + Astrodon filters.

Full details here

Thank you for looking!

41771679_M332019-08-26v1(crop2).png.f720e1902b0b280dcb9fbe4d00988eb8.png

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And here is the original field of view with my setup:

496922436_M332019-08-26v1.png.888e4874f0934cdfe78f91a7990d76a7.png

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Love the FoV with the 73 and it's flattener.  I have then same but use a 294MC Pro for OSC.

Great image. Like the full frame.

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Yes great image 🙂 and I would agree with @fwm891 the uncropped image, for me, is a better fov and still you can see all the detail of the cropped view. 

Of course this is always  personal thing and you do what pleases yourself.

Steve

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Very nice capture.

I was imaging this last night with the TS65Q. I would be pleased if mine was only half as nice as this.

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Thank you all for the nice feedback so far! 

I am kind of torn between the crop and the full frame in terms of what I prefer, as you might have guessed...maybe leaning a bit more toward the full frame this morning!

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5 hours ago, Star101 said:

Very nice capture.

I was imaging this last night with the TS65Q. I would be pleased if mine was only half as nice as this.

Thank you very much! I think integration time has been key for me...spending an extra night or two on the same object seems to make a lot difference

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Good capture, sensitively processed. It's very unusual for me to say this but, for me, you could bring in the black point just a tad more. I don't like an overly dark background sky at all but I think when it's as light as this you take a bit of drama out of the image.

Great stuff in any event.

Olly

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1 hour ago, ollypenrice said:

Good capture, sensitively processed. It's very unusual for me to say this but, for me, you could bring in the black point just a tad more. I don't like an overly dark background sky at all but I think when it's as light as this you take a bit of drama out of the image.

Great stuff in any event.

Olly

Thank you very much Olly! The previous iteration of this image had a darker background, but that also seemed to dim the immediate area around the galaxy too much...so I brought out the black point! I kind of agree with you, so it is probably a case of delicately adjusting the contrast with curves in PI (I'm a PI person).

What I really struggle with is differing brightness levels when processing - it might look good on my laptop or computer screen, but then seem too light/dark when looking again on SGL or Astrobin or on an iPad.

Feedback always appreciated!

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Very nice and detailed image for such a small scope, colors are also very good.

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12 hours ago, Xplode said:

Very nice and detailed image for such a small scope, colors are also very good.

Thank you very much! The Z73 has proved to be a pretty decent performer, I would agree.

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On 12/09/2019 at 10:04, kirkster501 said:

Very nice.  I think I prefer the original FoV.

Thank you very much! Yes that seems to be the consensus view - thanks for the feedback!

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