Centaurus A

[gregbradley]

Its been a while since I posted an image here.

I took this one last weekend in heavy wind. I had tuned up my mounts polar alignment, PEC curve and formed a large Protrack model for it which also makes tracking corrections.

AP140, Trius 694, PMX mount, MMOAG guider with STi with reducer and infrared filter.

4 hours.

http://www.pbase.com/gregbradley/image/159486218/large

More of a test really.

Greg.

[clive milne]

Beautifully processed.

[LewisM]

Right up there with Rolf's 300,000 hour image ;)

Seriously nice job well processed

[alpal]

Hi Greg,
Nice job to capture that halo so well in only 4 hours.

cheers
Allan

[DJT]

Gorgeous image, Greg. Can't wait to see what you do when it's not a test.

[gregbradley]

Thanks very much Clive.



Thanks Lewis. I was happy with the result from only 4 hours.



Thanks Allan. The 77% QE of the chip shows through plus the totally dark site.



Thanks. I also have the AP reducer/corrector. That makes it F5.6. It distorted the guide stars in the MMOAG pretty badly though. I thought of a solution to that afterwards so if I can get it working well it may be the basic setup for that scope with that camera. Just a bit wider field works well with many objects.

This AP scope is super sharp and the sharpest optics I have ever used.

Greg.

[RickS]

Lots of halo, Greg, and an impressive test. Looks to me like the background has a blue/green cast?

Cheers,
Rick.

[gregbradley]

Thanks Rick. I corrected that some more and its more neutral now, perhaps a tad left. I blame it on Mike's influence as he often has a bluish look which I quite like. So I reckon its his bad influence then?:rofl:

Greg.

[RickS]

He's trouble, that Mikey :lol:

[strongmanmike]

Yeah yeah, pick on the Blue Angel :innocent:

Nice work Greg but I agree with Rick... and looks like you have damaged the stars a bit too, fix these and the Blue Angel will be happy - Amen :P

Mike

[rustigsmed]

Awesome test! Can't believe it's Centaurus a season already.

[gregbradley]

I did get rid of most of the bluish background since Rick posted. Can you see more? Stars do get a bit stetched in the process. Perhaps I should mask them during the stretching stage?



Thanks. Yes its in a good position at the moment.

Greg.

[Ross G]

A beautiful Centaurus A photo Greg.

Nice composition with deep detail.

Smooth colours and tones.

I love it.

Ross.

[gregbradley]

Thanks Ross! I may add to this one next time I get to my dark site.

Greg.

[sjastro]

We are being spoilt with some great images Centaurus A images Greg.

Steven

[gregbradley]

Thanks Steven. I've imaged this area many times I should try and add some data from earlier acquisitions as well as the fresh data.

Greg.

[Stevec35]

Pretty good for a test Greg! Nice to see an image from you again.

Cheers

Steve

[gregbradley]

Thanks Steve. Yes it has been a while. I have a few ready to be processed now. I've had a couple before but they weren't good enough and then endless cloudy nights here in Sydney have made it hard.

Greg.