Ngc 253

[Peter Ward]

Originally Posted by multiweb

Now that looks like a chart32 shot from an observatory on top of a mountain. Sub zero cool.

Originally Posted by h0ughy

what a fantastic cruddy image !!! whinge, whine and complain I can only hope that one day i get the change to get something like this. Fantastic details and i certainly appreciate the resolution.

Thanks Guys....nice to be compared with the Chart guys...but I can only get glimmers of their silky smooth, high resolution imagery from my location.

Imaging from the 'burbs I am always up against the LP noise wall and wait for many nights to get one with reasonable seeing.

Try as I might, I could not get Maxim to fully register the RGB frames. Hence I'm rapidly becoming a Pixinsight fanboy.

Their image registration with distortion correction tool is remarkable. ..and well worth discovering if you haven't already done so.

[gregbradley]

That's way better Peter. I'll keep that in mind next time I have an image that is not registering well (it happens).

I found PI fabulous for registering nightscape images that other software could not handle. Its an odd program but some of its tools are just cutting edge.

Greg.

[atalas]

I'm working on this as well Peter,and If I can do half as well as this from our location I'll be happy

Excellent work

[Stevec35 (Steve)]

That's a nice NGC 253 Peter although it looks like you could have used more data because there's a bit of colour noise in the background. I'm constantly surprised at the quality of the images you produce given the considerable light pollution at your location.

Cheers

Steve

[Peter Ward]

Originally Posted by Stevec35

That's a nice NGC 253 Peter although it looks like you could have used more data because there's a bit of colour noise in the background. I'm constantly surprised at the quality of the images you produce given the considerable light pollution at your location.

Cheers

Steve

Ta Steve...I'm slowly getting a handle on PixInsight's noise and DBE tools, which look very promising for removing the noise I'm always struggling with. As a result I don't think I'm done with this one just yet...plus haven't event begun to explore their sharpening tools.

Originally Posted by atalas

I'm working on this as well Peter,and If I can do half as well as this from our location I'll be happy

Excellent work

Much appreciate Louie. One significant upside of using a long FL is it reduces the effect of sky glow..i.e. sky brightness per pixel....which in our neck of the woods is hardly trivial.

Originally Posted by gregbradley

That's way better Peter. I'll keep that in mind next time I have an image that is not registering well (it happens).

I found PI fabulous for registering nightscape images that other software could not handle. Its an odd program but some of its tools are just cutting edge.

Greg.

Thanks Greg. Yep while the PI interface, as I think Marcus put it: about as much fun as bamboo under the fingernails, it has some simply amazing tools

[LewisM]

Much better on now my monitor - the previous rendition was decidedly lilac on my CALIBRATED monitor

[Peter Ward]

Originally Posted by LewisM

Much better on now my monitor - the previous rendition was decidedly lilac on my CALIBRATED monitor

Whew! Order has been restored to the force

[LewisM]

Yes sorry I had a little flatulence. The force is restabilised

[Slawomir (Suavi)]

Impressive detail Peter, well done

[marc4darkskies (Marcus)]

Originally Posted by Peter Ward

...
A focal reducer was used to deliver a paltry focal length of around 2500mm

Paltry indeed!! Why anyone would want to image this galaxy with anything less than 3130mm is utterly beyond me! At least you used respectably large pixels!

All up though, not bad for a hobbled Alluna!

[Peter Ward]

Originally Posted by marc4darkskies

Paltry indeed!! Why anyone would want to image this galaxy with anything less than 3130mm is utterly beyond me! At least you used respectably large pixels!

All up though, not bad for a hobbled Alluna!

Originally Posted by Slawomir

Impressive detail Peter, well done

Thanks gentelmen. I suspect I might have used the FFC corrector rather than the FFR....too many *TLA's to keep track of

*three letter acronyms

[rustigsmed (Russell)]

Fantastic - love the resolution !

[peter_4059 (Peter)]

Originally Posted by Peter Ward

Ta Steve...I'm slowly getting a handle on PixInsight's noise and DBE tools, which look very promising for removing the noise I'm always struggling with. As a result I don't think I'm done with this one just yet...plus haven't event begun to explore their sharpening tools.



Much appreciate Louie. One significant upside of using a long FL is it reduces the effect of sky glow..i.e. sky brightness per pixel....which in our neck of the woods is hardly trivial.



Thanks Greg. Yep while the PI interface, as I think Marcus put it: about as much fun as bamboo under the fingernails, it has some simply amazing tools

Have you tried the new PIXINSIGHT photometry-based colour tool? I think it is a new approach to get the initial RGB image properly CALIBRATED. Might help avoid future lilac episodes.

[Peter Ward]

Originally Posted by peter_4059

Have you tried the new PIXINSIGHT photometry-based colour tool? I think it is a new approach to get the initial RGB image properly CALIBRATED. Might help avoid future lilac episodes.

Not yet.
On the "to do" list.
Consider me suitably chastised.

[markas (Mark)]

Terrific detail,Peter

Mark

[Paul Haese]

The latest version looks pretty reasonable for an image taken in light polluted skies. It does seem a shame you have not got this scope parked some where dark. Surely you could do an arrangement with itelescopes for hosting and loaning of time.

[Placidus (Mike and Trish)]

The final colour is beautiful, and the crispy crunchy detail is just amazing. Lovely.

[Peter Ward]

Originally Posted by Placidus

The final colour is beautiful, and the crispy crunchy detail is just amazing. Lovely.

Originally Posted by Paul Haese

The latest version looks pretty reasonable for an image taken in light polluted skies. It does seem a shame you have not got this scope parked some where dark. Surely you could do an arrangement with itelescopes for hosting and loaning of time.

Originally Posted by markas

Terrific detail,Peter

Mark

Thanks gentlemen. As for moving the ‘scope to a dark site, yes that would be nice, but I like to change out optical configurations and filter sets which is not easy to do remotely. That said, I’ve been looking at the prices of rural plots within a few hours of Sydney...ouch! I suspect I’ll need to win lotto first

[cometcatcher (Kevin)]

That's very sharp! At this level, galaxies that otherwise look like stars pop out.

I'm imaging 253 at the moment but it won't look like this unfortunately.

[Martin Pugh]

Hi Peter

late to comment here. Terrific detail in the galaxy indicating good focus.

Needs to be hit with the Tony Hallas Green Pixel Gun (as he calls it in his talks) and there is a very simple way in PS to get rid of satellite trails with two clicks of the mouse :-)

cheers
Martin