First time colour NB Rosette Nebula

[Farooq]

This is the first, albeit not very good, attempt I have had at capturing the Rosette Nebula in colour. I previously did it last year in Ha only.

The image is WIP, comprising of only 3x900s Ha and 4x900s OIII(bin 2x2). I am binning the OIII as I am not getting sufficient  signal if I capture OIII unbinned.

I am still trying to learn combining the separate NB images. For this one I tried Ha-Red and OIII-Green and Blue channels. Not sure how to generate the synthetic green channel to get HST type images. Are there any decent simple tutorials out there that I could use as a step by step guide?, any pointers would be really appreciated.

[symesie04]

Looks lovely alreadfy, a rose indeed.

This might help although it appears to be to create a synthetic luminance fron RGB but guess you could work backwords.

http://www.astropix.com/PFA/SAMPLE4B/SAMPLE4B.HTM

This may also shed some ligfht, not sure what your processing in?

http://pixinsight.com/forum/index.php?topic=2777.0

If pixinsight try this link

http://lightvortexastronomy.blogspot.co.uk/2013/03/tutorial-nebulae-pixinsight-guide-for.html

For PS try this

http://www.starrywonders.com/bicolortechniquenew.html

[andyo]

Looks like a good capture to me.

[Ewan]

Here you go Farooq http://www.starrywonders.com/bicolortechniquenew.html easy to follow as well.

You just need more data, i wouldnt bin the NB data at all just do longer exp or more of them, only bin RGB as its only a colour signal after but all the detail & sharpness should be in the NB.

Coming on nicely though.

[Gina]

That's a really great start - already very good as it is

[Farooq]

I'd like to thank everyone for their encouraging comments and help.

After going through the links, here is my first go at using the HST palette. I guess I still have a lot to learn before I can hope to reach the level of some of the more experienced imagers on this forum. I followed the video tutorial by Ken Crawford and below is the result. Any feedback most welcome.

[symesie04]

Hey thats real nice. For a first HST attempt and considering you were using synthetic greens its pretty damn good indeed. O.k its a little vegas but really excellent attempt i reckon.

[ollypenrice]

Not a Hubble Pallette fan but I really like the first one, which has a fluffy, gassy look which is reasonable since the object is fluffy and gassy! One simple thing to try in Ps is to open Image, Adjustements, Selective Colour and take the top slider in the reds to the left, reducing the cyans in red.

Olly

[Farooq]

Thanks for the suggestion Olly, will try it and post the results.