Ngc2327

[gregbradley]

A beautiful nebula now rising in the early morning.

I just returned from 3 nights in a row of beautiful clear skies where I managed to image 4 objects about 24 hours worth.

This one though was taken about 5 weeks ago with the Tak BRC250 before I sold it.

FLI ML8300 camera, Baader filters, Tak NJP mount.

HaLRGB 60 60 40 20 20 (why the 40 in red and not the others? Earlier than expected dawn ruined 2 green and blue). Currently your last image has to be finished by about 4:30am otherwise it gets too light).


http://www.pbase.com/gregbradley/image/118655643/original

Here is a cropped portion of the image that highlights the beautiful parts of the nebula:

http://upload.pbase.com/image/118673435


Ha was blended in with multiple layers set to various blending modes and colour channels and done twice with one set to luminance as a mask to highlight the ridged area and help tone down a couple of select stars but not generally where it will wash out colour saturation).

Greg.

[DavidU]

Unreal ! Very well done indeed.
Thanks Greg.

[TrevorW]

Very nice Greg note over processed great colour tight stars but what caused the streak crossin gthe diffraction spike of the bright star in the bottom left

[multiweb]

The stars and neb look great. :thumbsup: Some posterization though on the lower left as noise and under the bright star in the neb showing as blue. Is this some color clipping?

[renormalised]

Great piccie, Greg...neb's colours are superb and nice, round stars:D:D

[gregbradley]

Thanks. I liked how it turned out filter reflections nothwithstanding.




Oh that is just a satellite in one of the subexposures coming through.
Or perhaps a meteorite. They happen. Usually median combine filters those out but sometimes a bright one may still make it through.



That is just a bad filter reflection going on between the corrector lens and the filter. To some degree the luck of the draw, perhaps the Astronomik filters would have shown less reflections as I used to mainly use them with this camera and filter wheel. This image used the Baader filter set.
With the TEC scope I don't have to use the field flattener with the same chip 8300 and still get round stars to the corner so those sorts of bad reflections will be a thing of the past. This was one of the first images using the Baader filters with this camera as I normally had these filters setup with the Apogee U16M's filter wheel. But these Baader filters have great red response.



Thanks. It was a good setup. But too much the same focal length as my TEC180mm scope.

[gregbradley]

Here is a cropped version which I like better as it gets rid of that ugly reflection from the filter and highlights the more beautiful part of this nebula.

http://upload.pbase.com/image/118673435

Greg.

[Paul Haese]

Nice seagulls head Greg. Lovely and smooth data. Lots of long nights.

[gregbradley]

Thanks Paul. Yes they were long nights but its all part of the fun especially now the nights are getting a bit warmer.

Greg.

[Octane]

Greg,

Vibrant, rich, stunning and saturated.

What a fantastic image. You should be proud.

Regards,
Humayun

P.S. I'm diggin' those diffraction spikes, however they are created!

[gregbradley]

Thanks Humayun.

The diffractions spikes are from the Tak BRC250 which has a secondary spider. Yeah I don't mind diffraction spikes. They are a taste.

[iceman]

You've been very busy, some awesome work on display here Greg!

[gregbradley]

Thanks Mike. I got 3 clear nights last week during a midweek trip to my site. Sometimes the weekends "seem" to be more prone to poor weather
during the imaging weekends over the last year and a half.

Nice to meet you at IISAC and what a wonderful job you did. It was so well organised. My wife commented on how well you organised it as well.

Greg.

[telecasterguru]

Greg,

Rich and deep that just keeps on going.

Well done.

Frank

[Tom Davis]

Great image!!

Tom

[gregbradley]

Thanks very much Frank.



Thanks Tom.