Morning everyone, as promised I have shared the Dolphin with you, this is the last one now I am afraid!
The data will need some sorting out as usual due to the time of year but there is plenty of it to make a fine image
All I ask is that you put them in the gallery as this object is rarely imaged from Europe because its so low down, it will be nice to show off a a little from our location.
Enjoy as I am quite excited to see what Pier-1 members produce
Please ignore my dylexia wherever possible, just be thankful I can control my Tourettes ;)
Things to do, so little time!
Steve
Roboscopes Tea Boy
Somewhere in this thread is a screenshot.
That is a screen shot of the Red and Ha stacks from the Dolphin nebula data. If anyone else has started on this, are you getting those cross shaped artefacts around the bright star showing in the screen shot. If so any suggestions on how to mitigate it.
Grateful for any answers,
Cheers, Ray
Ray
Roboscopes Guinea Pig
Hi Ray,
This artefact is one of the characteristics of this particular set up. Its down to the pixel array and the way it diffracts. There are plans to change the filters at some point to a higher quality to help reduce the narrow band halos, I am hoping it will also help with this but I'm not convinced it will. It can be repaired in post process,
Regards
Peter
Peter Shah
Roboscopes Observatory Controller
Hi Ray,
This artefact is one of the characteristics of this particular set up. Its down to the pixel array and the way it diffracts. There are plans to change the filters at some point to a higher quality to help reduce the narrow band halos, I am hoping it will also help with this but I'm not convinced it will. It can be repaired in post process,
Regards
Peter
This dataset really is challenging!
I had to manually sort out up to about 80% of the lightframes due to the strong artefacts as described by Ray.
Unfortunatly this also deleted almost every nebula signal in the Ha narrowband data ;-( so I had to use some more of the "bad" Ha data as well (most data is in OIII anyway).
Even though I can clearly see the dolphins head I am still far away from a somehow "presentable" image.
Excellent homework for improoving imaging skills though ;-)
CS
Martin
Despite the additional data recently given to us I am still unable to make the Ha show through to any extent. What with tackling problems with some stars I think I've spent enough time on this already and am throwing in the towel. I'm extremely pleased and grateful for the data on this nebula which is so low down in the sky here in the UK, so thank you Steve. So this is it, warts and all.
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