ARCHIVE · Login   · Main Index   · Search Astrophotography and Sketching >> CCD Imaging & Processing Previous   Index   Next   Threaded   Pages: 1 dsnope Pooh-Bah Reged: 04/28/06 Posts: 1432 Loc: OC California Rosette Narrowband       #2075436 - 12/26/07 04:38 PM Attachment (68 downloads) Edit   Reply   Quote Quick Reply   I spent Christmas night collecting S2 and O3 data to add to the Ha data that I took on the 15th. This is my first serious attempt at a tricolor narrowband image. The O3 data was fairly noisy and had a gradient which I assume is from the moon. I was a bit disappointed in that, but keeping in perspective that this image was taken fairly close in space to a bright moon I cannot complain. This needs some more work but here is my first attempt at climbing the learning curve of narrowband processing. Ha (7x30); S2 (4 x 30); O3 (4 x 30) SV130/STL11K/Atlas Thanks for looking & Merry Christmas, Dave -------------------- The stars burned with a lidless fixity and they drew nearer in the night until towards dawn he was stumbling among the whinstones of the uttermost ridge to heaven, a barren range of rock so enfolded in that gaudy house that stars lay awash at his feet and migratory spalls of burning matter crossed constantly about him on their chartless reckonings. In the predawn light he made his way out upon a promontory and there received first of any creature in that country the warmth of the sun's ascending Post Extras:       Galaxy001 Carpal Tunnel Reged: 06/08/06 Posts: 1633 Loc: San Ramon, California Re: Rosette Narrowband [Re: dsnope]       #2075474 - 12/26/07 04:51 PM Edit   Reply   Quote Quick Reply   Great work in the narrowband, you revealed quite a lot of faint nebulosity. -------------------- Zach Remember to Keep Looking Up! My observatory: Meade LX90 GPS 8" UHTC With a (Meade) 18 mm UWA ep and a 3x telextender Other cool stuff: Meade ETX-60 DSI Pro 60 mm Solar Filter Celestron dew shield Post Extras:       schmeah scholastic sledgehammer Reged: 07/26/05 Posts: 940 Loc: Morristown, NJ Re: Rosette Narrowband [Re: Galaxy001]       #2075646 - 12/26/07 06:05 PM Edit   Reply   Quote Quick Reply   Wow, Dave, there's some phenomenal detail there! Great shot. Regarding the gradient, have you tried a program like Gradient Xterminator? It shoud get rid of that. Derek -------------------- - Derek 10"LX200R, SVR90T QSI 540 wsg, DSI Pro III, SX Lodestar http://www.pbase.com/dsantiago Post Extras:       dsnope Pooh-Bah Reged: 04/28/06 Posts: 1432 Loc: OC California Re: Rosette Narrowband [Re: dsnope]       #2075705 - 12/26/07 06:33 PM Attachment (42 downloads) Edit   Reply   Quote Quick Reply   I did a quickie reprocess in CCDstack to flatten the O3 background. This narrowband processing is fun once you get the hang of it. Here is 5 minutes worth of work: Post Extras:       budguinn Post Laureate Reged: 11/24/04 Posts: 4895 Loc: Gold Beach, Or Re: Rosette Narrowband [Re: dsnope]       #2075719 - 12/26/07 06:38 PM Edit   Reply   Quote Quick Reply   lookin' good, Dave....great detail -------------------- Warmest regards, bud guinn http://www.budguinn.com Post Extras:       DeepSpaceViews member Reged: 08/23/07 Posts: 40 Loc: Philadelphia, PA Re: Rosette Narrowband [Re: dsnope]       #2075779 - 12/26/07 07:07 PM Edit   Reply   Quote Quick Reply   Well done Dave, I like it a lot Stephen T. Roffo Jr www.DeepSpaceViews.com -------------------- Takahashi FRC-300 12" 2348mm F/7.8 Tak FSQ-106N 4" 500mm F/5 Tak FS-78 3" 630mm F/8.1 Tak EM-500 Capacity 90/120 lbs Apogee U16M CCD Camera & AI-FW50 7S Filter Wheel SBIG ST-402 CCD FLI PDF Focuser Astrodon 50mm Square Filters L,R,G,B & H-alpha 5nm, Sulfur II 5nm, Oxygen III 3nm www.DeepSpaceViews.com Post Extras:       Bob Moore Pooh-Bah Reged: 04/07/06 Posts: 1173 Loc: New York Re: Rosette Narrowband [Re: dsnope]       #2075840 - 12/26/07 07:38 PM Attachment (37 downloads) Edit   Reply   Quote Quick Reply   Very nice Dave, I played with your image a little hope it's ok with you Bob -------------------- Just a stepping stone to greatness for others And a scope or two or three or four http://www.deer-pond-observatory.com Post Extras:       novbabies Postmaster Reged: 06/05/05 Posts: 15678 Loc: Northern Georgia! Re: Rosette Narrowband [Re: Bob Moore]       #2076556 - 12/27/07 06:07 AM Edit   Reply   Quote Quick Reply   Dave, , and the reprocessed views are stunning ! -------------------- Good Seeing! Mark Orion 12" XTi f/4.9 VERY old Edmund 6" f/8 reflector Assorted binoculars Post Extras:       EricCCD Carpal Tunnel Reged: 04/14/04 Posts: 1945 Re: Rosette Narrowband [Re: novbabies]       #2077092 - 12/27/07 12:47 PM Edit   Reply   Quote Quick Reply   Nice, Dave! NBI gives you a bit of leeway to play with color balances to find the color balance you want. Nice details, too! Eric Post Extras:       bill w Postmaster Reged: 03/26/05 Posts: 10277 Loc: southern california Re: Rosette Narrowband [Re: EricCCD]       #2078984 - 12/28/07 09:26 AM Edit   Reply   Quote Quick Reply   very nice dave i like the second could you use the HA data with gradient exterminator to eliminate the oiii gradient? -------------------- -bill w nexstar 8 GPS canon 300D, Toucam Pro II SXV-H9C, H9, SX Lodestar autoguider, SX-AO, DMK 51 FS 102 (OLV), FS60 CSV, 8" LX200R, Lunt 60/50 double stacked PT B1200, Losmandy G 11, ASA DDM60 http://astro.whwiii.net/ image processing monitor calibrated to just differentiate darkest boxes: Post Extras:       Zyxlor Carpal Tunnel Reged: 09/10/05 Posts: 2335 Loc: In my RV - Anywhere USA Re: Rosette Narrowband [Re: bill w]       #2079078 - 12/28/07 10:07 AM Edit   Reply   Quote Quick Reply   The second one is sweet! Great detail and color. I've never gotten much data from S2 myself. Good work! -------------------- Zyxlor ++++++++++++++++++++++++++++++++++++++++++++ Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 0 registered and 31 anonymous users are browsing this forum. 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