NGC 5128 in various wavelengths

[sjastro]

As promised here is a animated image of NGC 5128 imaged in near UV, visble and near IR.

The wavelength ranges in the captions are based on the luminance filter transmission data.

Unfortunately animated GIF files don't do the resolution of the image much justice.
The animation can be found here.
http://members.iinet.net.au/~sjastro...vis_uv_nir.gif

If your browser (Firefox etc) supports it a better quality animated png can be found here.
http://members.iinet.net.au/~sjastro/output.png

Finally a near UV/visible image of NGC 5128 in 100% resolution is here.
http://members.iinet.net.au/~sjastro/CentUV_VIS.html

The imaging details are:
LRG(UV) IMAGE L= (0.8 hrs B+ 10 hrs UV), 0.8 hrs R, 0.8 hrs G, 10 hrs UV
LRGB 1.5 hr L, 0.8 hrs R, 0.8 hrs G, 0.8 hrs B, ST-10XME. BRC-250

I'm quite pleased with this image as the OB associations are very conspicuous due to the near UV data.
Also the high contrast of the near UV image made it a very effective "pseudo high pass filter" when combined to the visible image.

This image is also found in the attachment.

Regards

Steven

[multiweb (Marc)]

Nice work. The difference is pretty evident. Still to try dabbling in UV when those damn clouds decide to go somewhere else...

[sjastro]

Originally Posted by multiweb

Still to try dabbling in UV when those damn clouds decide to go somewhere else...

Another masochist......

Steven

[multiweb (Marc)]

Originally Posted by sjastro

Another masochist......

Steven

I like to call it necessity. My backyard light spectra is pretty much continuous in the visible part. I have to keep imaging 'on the edge'.

[David Fitz-Henr]

Nice work Steven; very interesting too to compare the same image in different wavelengths.

[sjastro]

Originally Posted by multiweb

I like to call it necessity. My backyard light spectra is pretty much continuous in the visible part. I have to keep imaging 'on the edge'.

I was imaging on the edge myself.... of my sanity.

Good luck with your venture into near UV imaging. I will be interested in your results.
I've been scanning the internet looking for data for "bright" near UV objects.
Unfortunately the only lists are for mid, far and extreme UV objects all of which require satellite imaging.

Clear skies

Steven

[RickS (Rick)]

Very nice comparison, Steven! The animated PNG worked for me in Firefox.

[Ross G]

Very interesting work Steven.

Ross.

[sjastro]

Originally Posted by David Fitz-Henr

Nice work Steven; very interesting too to compare the same image in different wavelengths.

Thanks David. It opens up new avenues.

Originally Posted by RickS

Very nice comparison, Steven! The animated PNG worked for me in Firefox.

Thanks Ric.

Unfortunately I couldn't slow the animation down but the image quality is superior to the animated GIF.

Originally Posted by Ross G

Very interesting work Steven.

Ross.

Thank you

Ross

Clear skies

Steven

[broca (Steve Coates)]

Interesting topic and fine work. Very nice images!

[SkyViking (Rolf)]

Nice animation Steven, it's great to see the comparison like this.