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Originally Posted by RobF
Ok, bit more education learned re IR then.
BUT - its still an interesting view, and there's dark dusty lane thingies visible in there for sure
(back off man, I'm a scientist!)]
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A mate of mine did a shot slightly wider FOV with an FSQ106 and it matches mine so I reckon it's about right.
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Rob and Marc
I was comparing the dust detail in the Lagoon Nebula.
Maybe the differences are not as apparent in the surrounding parts of the image.
The difference in NGC 7793 is quite striking.
http://members.iinet.net.au/~sjastro...ison_Stars.jpg
On a different topic I think a wide field image of the Coal Sack in NIR might be very interesting.
I purchased an NIR filter specifically to image RCW71 an emission nebula which is heavily obscured by the Coal Sack. I was expecting considerable improvement over a visible light image as NIR should have cut through the Coal Sack, instead it was a lot worse.
It could mean that RCW71 isn't very bright in NIR or the Coal Sack is lit up in NIR resulting in loss of contrast of RCW71. (Something like the lack of contrast in the NIR image of NGC7793).
Regards
Steven