Image of the day

Captured by
RICHARD COFER

VdB 141 Ghost Nebula

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Posts Made By: Larry Citro

March 18, 2005 09:27 PM Forum: Equipment Talk

The perfect scope?

Posted By Larry Citro
hi,

Ahhh ... it's the one I don't have.

clear skies,

Larry Citro

April 28, 2005 08:35 PM Forum: Eyepieces

Dispelling Rumors

Posted By Larry Citro
hi,

LOL, great picture. Actually, I think he was born that way, his ears were just ahead of the times ! smile

Larry

May 9, 2005 01:15 PM Forum: CCD Imaging and Processing/Deep Sky

CHALLENGE for the month of May

Posted By Larry Citro
hi,

I've taken several pictures in the past and am in the preocess of reprocessing them. Can I post them here or do they have to be images taken this May ?

clear skies,

Larry Citro

May 9, 2005 03:10 PM Forum: CCD Imaging and Processing/Solar System

Jupiter composite (final)

Posted By Larry Citro
Hi,

Fantastic images, just great to look at.

Larry Citro

May 9, 2005 11:45 PM Forum: CCD Imaging and Processing/Deep Sky

CHALLENGE for the month of May

Posted By Larry Citro
hi,

Here's a composite image of m63 taken last year at two different times with a Mewlon 250 at F9 and a ST8E. LRGB 55:15:15:15 minutes. I reprocessed this image this morning. Aligned in MaximDl ver 4 and the LRGB combine was done in Paintshop Pro. Presented at 60% of full size.


clear skies,

Larry Citro

May 9, 2005 11:56 PM Forum: CCD Imaging and Processing/Deep Sky

CHALLENGE for the month of May

Posted By Larry Citro
Hi,

Here's an image of m13 taken with a Vixen VC200L at f9 and a ST10XME. 30 minute exposure. I reprocessed this to try and show as many of the outliers as possible without washing out the core.

Presented at 50% of full size.

clear skies,

Larry Citro

May 17, 2005 01:35 AM Forum: CCD Imaging and Processing/Deep Sky

Need help blending core of galaxy

Posted By Larry Citro
hi,

Basically use two images, one with the core burned out to show the arms and faint details and one with the core detail. Use layers, and select the core from the " core " image and use feathering about 15 to 25 pixels and copy the core. Then paste this as a layer over the core region of the " core burned out image " and blend them. The region of the blending should have near the same density and you can achieve this by different amount of non-linear stretching of the two images you are blending.


Larry Citro

May 18, 2005 04:14 AM Forum: CCD Imaging and Processing/Deep Sky

Leo Trio galaxies

Posted By Larry Citro
hi,

WOW also. Simply Spectacular Stuff !

clear skies,

Larry Citro

May 24, 2005 02:29 AM Forum: Equipment Talk

Wooooooooaaaaaaaah!

Posted By Larry Citro
Looks like my scope on steroids.

Larry Citro

June 8, 2005 09:47 PM Forum: CCD Imaging and Processing/Deep Sky

M13 processing help wanted

Posted By Larry Citro
hi,

First, try and advoid track and accumulate, it sums the images and burns out the core very quiclkly. Use 1 or 2 minute subexposures and median or sigma combine them in MaximDL. For DDP as a starting point use the automatic settings and then switch to manual and lower the the background point 10 to 30% and raise the midlevel 10 to 30 % as a starter. When you get it right you can then gamma stretch a bit more (.9 to .7 gamma ) to increase your dynamic range.

clear skies,

Larry Citro

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