Hi, I'm pleased to share the outcome of a collaboration with Sébastien Kersten. Sébastien has acquired and processed the Ha signal, used for the luminance. I...
Congratulations to you and Sebastien, this is a wonderful job. Really beautiful image, very well processed. How much time did you expose with each filter? ...
I am just getting started with narrowband imaging. I am still collecting my first batch of data on NGC 2264. I have 140 min of Ha, 60 min of O3 and 20 minutes...
Wonderful job Franck and Sebastien! ... Kersten. ... luminance. ... produce a first Ha-S2HaO3 image and then have processed the final image, using mine as...
Terry, Try Neil Fleming's web site. Look for his AIC presentation. "The Zone System" has several chapters on NB too. Narrowband Newbie Posted by: "Terry S....
Several years ago John Gleason popularized the NGC6188 region in his classic Ha image, "Folded Spaces". I have revisted the area with narrowband filters to...
Hello Stephen, Thanks for the feedback. I'm pleased that you liked my image. Each sub exposure was 900 sec. Regards, John ________________________________ ...
My apology to John Gleason. His well-known Ha image of the NGC6188 region was "Folded Space", not spaces. It can be seen in his Celestial Image website. ...
... For narrowband, G2V weighting is almost unattainable <g>, nor am I sure it even applies. Our Ha data almost always outstrips the quality of the OIII and ...
Sorry for the delay, Terry, I have had a killer project at work to do... As Don said in another couple of posts, he uses his to subtract out the light from...
Hi, All, here's a zoomed in look at a portion of NGC 6188 that John showed in his terrific wide-field image. My image was taken at our remote site at Macedon...
Don You are consistently producing absolutely top notch images and this is no exception. I'm looking forward to your wide field shots. Have you emigrated to...
Beautiful detailed close-up, Don! Nice resolution of the "Ara Wall". Another 1-2 punch on the same object for us. I won't say where I am imaging now, but it...
Thanks, John, Yep we're playing cat and mouse again. I have two more targets imaged, but not processed. The initials for the next big target to process is...
Well, John, this is too small for wide field so I wasn't under any pressure to get this one out before you did <g>. Actually, I've wanted to image a bipolar...
This is becoming uncanny, Don, or perhaps ours is simply a logical target progression. I have only taken a few pilot shots for composition purposes, so I...
Hello Don, I discover this very nice and detailled nebulae. The result is outstanding and I am anvious :o) My project is so much reasonnable but I have the...
Bonjour, Nicolas, Thank you. Although we have good collimaton and excellent pointing, we have discovered a tilt in the optical train. That will be fixed within...
Neil You confirmed what I had deduced from the literature. Where did you get your OIII coninuum filter? The only one that I have found so far is a 510/10 nm...
Latest effort – I had the opportunity to image from a dark sky site at the Atlanta Astronomy Zombie Star Party held at the Deerlick Astronomy Village in...
Hi, Here are some recent narrowband shots with an ST-2000XM, Astrodon Sii/Ha/Oiii filters, a TMB 152/1200, and an AP1200. Thanks much to Neil Fleming for his...
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