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Douglas Rollain

M20 Trifid Nebula in LRGBHa

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Posts Made By: Richard Keppler

December 9, 2012 01:07 AM Forum: Astro-Physics

Galaxies in Pegasus

Posted By Richard Keppler
Roland Christen said:

Just a quick exposure of galaxies centered on NGC7331 with Stephan's Quintet in upper right. Scope was 180F8 with STL11K camera. Exposure 6 x 10 minutes at my light polluted observatory.

Rolando

180 f/8? 175 f/8? Looks like a nice sharp photo though, full of detail.

December 17, 2012 04:34 PM Forum: CCD Imaging and Processing/Deep Sky

narrowband imaging questions

Posted By Richard Keppler
Yes, you will need some additional high level image processing software. Photoshop has been around the longest, has quite a large number of adherents and many astro imaging specific add-on tools and techniques. PixInsight is a newer and quite significant astronomical image processing package worthy of a look as well. Either are going to require a lot of investment in your time to learn in order to do what you are planning.

April 22, 2013 04:25 PM Forum: CCD Imaging and Processing/Deep Sky

CTB 1/ Abell 85 / LBN 576

Posted By Richard Keppler
Very nice Maciej. The SNR looks great. VdB 159 really doesn't leap out, even on the higher res image on your web page. In fact, it is tough to make out as more than a blue star which might be a little fuzzy.

June 14, 2013 10:44 PM Forum: CCD Imaging and Processing/Deep Sky

Sh2-101 Tulip Nebula wide field different approach

Posted By Richard Keppler
Dave Erickson said:

I am always disappointed with the way my narrow band imaging combines with color images so I thought I'd try something different. Here the stars are roughly the correct color but the HAlpha is white. What do you think?

Impressive to say the least. It gives the Ha an ethereal ghostly fully 3D effect. A cloud of diffuse gas reaching out in the foreground with a myriad stars populating a more distant almost planar background. It is the nicest bit of astro-photography manipulation to the positive I have seen in quite some time. Very interesting effect!

Rick.

July 12, 2013 09:07 AM Forum: CCD Imaging and Processing/Deep Sky

Foursome from a Sony consumer camera

Posted By Richard Keppler
Pretty nice! You must have done some red boosting of the Dumbbell and Ring Thing.
The background has a very magenta cast in these two images. The Blinker worked out
extremely well for how blue-green sensitive the camera appears to be. Saturn is the
best though. I am impressed with it. It looks so much like the actual naked eye view
with something like a 4 or 5 inch refractor and moderately high mag.

August 29, 2013 01:18 PM Forum: CCD Imaging and Processing/Deep Sky

Sh2-126

Posted By Richard Keppler
Nice, very nice. What is the field size of the image and has it been cropped?

September 16, 2013 10:42 AM Forum: CCD Imaging and Processing/Deep Sky

Images for September

Posted By Richard Keppler
I like SH2-140 the best. It has some nice reflection nebulosity as well.

September 24, 2013 01:20 AM Forum: Astro-Physics

The eagle sees its prey

Posted By Richard Keppler
Roland Christen said:

H-a exposure of one of our favorite summer nebulas shown in a different way.

305 R-H astrograph and QSI683 ccd camera. 9 x 10 minute subs.

Rolando

You are testing from the observatory at the shop? Wow, the skies are not THAT bad. Looks like you managed to get some great seeing along with decent transparency. Very nice pic indeed.

Rick.


September 24, 2013 01:22 AM Forum: CCD Imaging and Processing/Deep Sky

M81-82 intergalactic

Posted By Richard Keppler
Roland Christen said:

Lots of strange stuff in the empty universe between the galaxies. 160EDF refractor at F5.7, STL11K camera, 150 min exposure.

Rolando

OK, fess up, this isn't taken from the shop observatory is it?

October 15, 2013 10:18 PM Forum: CCD Imaging and Processing/Deep Sky

West from beta Cephei

Posted By Richard Keppler
Simply gorgeous!

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