View Full Version here: : Wide field ngc5128
Peter Ward
14-03-2008, 11:14 AM
Last night's data. The seeing was not bad for a change.
http://www.atscope.com.au/BRO/gallery5.html
The image is reproduced at about half size. LRGB 60:20:10:20 mins.
Alchemy
14-03-2008, 11:27 AM
nice image peter, good to see youre able to get out and amongst it and get the fresh data, a number of noticable faint galaxys in the background too.
like the idea of the greyscale at the bottom of the image, its so hard to know if your own monitor sees it just right at times.
Cheers Alchemy
Peter Ward
14-03-2008, 12:04 PM
Played with the image a bit in Photoshop...slightly different presentation here
http://www.atscope.com.au/BRO/gallery6.html
h0ughy
14-03-2008, 01:54 PM
lovely image Peter, very fine and subtle details
Nice work Peter. Not much else to say. May favourite amateur image of this galaxy is that performed by none other than R Jay GaBany using Brad Moore's 12.5" RC - http://www.cosmotography.com/images/small_ngc5128.html
Pleasing to see your rendition.
A lovely image of one of those great galaxies you never tire of viewing.
I like the way you have captured the extensions of the dark dust lane as they drift of into space.
Cheers
citivolus
14-03-2008, 06:35 PM
Nice image, good scale. Is that nebulosity to the lower right?
Peter Ward
14-03-2008, 06:54 PM
don't know...probably my neighbors' flood light !
theodog
14-03-2008, 07:59 PM
Nice image Peter that displays the galaxy in its finest. Love the littlies in the background.
skeltz
14-03-2008, 09:48 PM
nice image pete crisp and sharp.
hector
15-03-2008, 03:16 PM
FANTASTIC Peter
You have captured the outer halo of the galaxy beautifiully. It is one HUGE galaxy when you take that into account. You can also see that the Halo extends out at the pole of the galaxy (to the bottom left of the image from the galaxy). I love to show this detail in the scopes but I have rarely seen these details in a photo.
FANTASTIC
Andrew
Peter Ward
15-03-2008, 07:05 PM
Thanks Andrew! :) I suspect you are a true artisan for sure !
strongmanmike
15-03-2008, 11:02 PM
Looks really nice on my screen Peter :thumbsup:.
Now was that taken with the RC or AP with strings? :)
Only small critisism I have is that the sharpening causes the star spikes to dissassociate slightly from the center of the main body of the stars and I'm not partial to this look, I prefer to see the spikes taper from fat near the star to thin at the ends...rather minor thing of course :rolleyes: but when you are at your level, such minor things are worth mentioning I guess, hope ya don't mind?
Mike
sjastro
16-03-2008, 11:50 AM
This is a joke isn't it? :)
Peter Ward
16-03-2008, 12:11 PM
Err...think I used the RCOS....with strings :)
There was no sharpening applied to the image. Just multi-pass Gamma scaling.
Benny L
16-03-2008, 12:28 PM
ahaha! bloody neighbors lol
A truly beautiful image Peter ;)
strongmanmike
17-03-2008, 12:16 AM
Was that using a 3 giga hertz plasma rifle in the 40 watt range..?
Does gamma scaling impart a log stretch to the image, if so then it will increase the noise and harshen the stars, yes?
Mike
Peter Ward
17-03-2008, 11:04 AM
Not always...I use a partial log curve, going easy on the dim stuff but kick the curve back up pretty radically near the top to give stars a snappy look without the dark doughnuts.
Noise was pretty low...two hours of data from a 14" tends to beat it into submission :)
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