This is about the 4th time I have attempted this object and with Mark's dark skies (albeit with fog), I finally have something I feel I can post.
I did a mixture of 30mins and 20min subs, but only managed to use one 30min subs, so it's basically
6 x 20mins Ha
3 x 15mins binned x 2 Oiii
More data would have been nice, but sky conditions prevented it. Since I might not get a chance to add to this for the foreseeable future, this will have to do for now.
Skywatcher ED80 with x 0.8 focal reducer
HEQ5 and Atik314L
(http://cdn.astrobin.com/images/thumbs/bfc175dbe0d49be545832cde700ac87d.1824x0_q100_watermark.jpg)
Two more versions (not reprocesses)
for those who like Mono the Ha only version:
(https://lh6.googleusercontent.com/-f9N6SQ1YViw/VHw_RhqAh9I/AAAAAAAABKQ/6z5N5Dr3reU/w699-h521-no/Cone%2BHa%2B5%2Bx%2B20%2B%26%2B4%2Bx%2B30%2Bmins%2BAtik314%2B%26ED80%2Bfinal%2Bprocess.png)
and this is an HaRGB version, combined with an image I did at Kelling in 2013 with a QHY8L (little bit of corner "fudging" due to different orientations).
(http://cdn.astrobin.com/images/thumbs/44117e9ad8d4db314499a2bdaf7a9410.1824x0_q100_watermark.jpg)
You've really pulled some nice detail out especially at the bottom of the tree there is a depth to it. I think my favourite is the first image you call really see the whisps of nebula, the HaRGB has a really strong cyan halo around the stars. Do you see that?
Thanks Ivor, yes I need to do something to those Halos, but I am also a bit reluctant to lose the added colour it gives.
Guess I just like pretty colours lol.
Carole
I like the HaRGB version.
However, I don't the OIII adds much to the image.
Mark
QuoteI don't the OIII adds much to the image.
I agree, the data had very little on it.
Carole
oh i thought you were using the 120, as I thought you wont get that in there. you could do with your 72 I am thinking you have one. well you have got a collection of long subs and will be able to add to it. it is often imaged corner to corner
I am having some problems mounting the WO71 at the moment Fay. There are no mounting rings on it so unless I mount side by side it means some improvisation and I never found side by side imaging very successful for a number of reasons.
So I had a finderscope foot welded to a mounting ring I managed to fit round it. It seemed to be OK at first but latterly I was getting trailing after only 5min subs and I suspected flexure. So have had to abandon the skywatcher bracket and mount the finderguider in it's own rings and now can do 30mins with no trailing. I now have to find a new way to mount this on the WO and so far not had any success.
I guess I could try side by side again I still have the bar, but I need to get it shortened as one of the problems was it was too long and would clash with the pier plate.
Carole