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Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

July 21, 2005 08:35 PM Forum: CCD Imaging and Processing/Solar System

Mars July 21, 2005

Posted By Alan Friedman

Nice work, Eric! I find the pre-dawn imaging run can offer some of the best chances for good seeing. It's a little hard on the rest of the work day, though.

smile

Alan

July 22, 2005 02:29 PM Forum: CCD Imaging and Processing/Solar System

Sun once more: RGB this time!

Posted By Alan Friedman

Hi Luca -

That is another beauty. You are on a very fast learning curve, I think!

best,
Alan

July 22, 2005 04:22 PM Forum: CCD Imaging and Processing/Solar System

Mars July 15, 2005

Posted By Alan Friedman

Nice work Paul - I hope you are surviving the heat OK!

Alan

July 23, 2005 08:54 PM Forum: CCD Imaging and Processing/Solar System

Lunar: Herschel

Posted By Alan Friedman

Hi Anthony -

I would say that is a very successful experiment! The processing is excellent with a beautiful range of tonality through the image.

Alan

July 24, 2005 06:41 PM Forum: CCD Imaging and Processing/Solar System

Mars July 23 2005

Posted By Alan Friedman

Nice work Wes! I think the CSC is a tease smile

Alan

July 29, 2005 02:18 PM Forum: CCD Imaging and Processing/Solar System

My very first Mars

Posted By Alan Friedman

Super first image Ed!

Alan

July 29, 2005 08:30 PM Forum: Coronado-Lunt-DayStar Solar Filters

Sol's Colour?

Posted By Alan Friedman

Hi Bruce -

It's an interesting question. Since H-Alpha imaging is monochromatic in the red, the decision to balance the color towards yellow/orange is an aesthetic convention - maybe because we've seen and known the sun as yellow since our first set of crayola crayons? Our eyes are not too sensitive to things at the deep red end of the spectrum. My personal preference is often for grayscale H-Alpha images (until I see one of Greg's spectacular orange ones!). Here is a prominence close-up from yesterday - I made the decision to apply a subtle tone to the original grayscale - played around with many different tints and wound up with... yellow/orange.

http://www.astromart.com/forums/viewpost.asp?forum_post_id=353386&poll_id=&news_id=&page=

July 30, 2005 02:59 AM Forum: CCD Imaging and Processing/Solar System

Gassendi July 29 2005

Posted By Alan Friedman

A very beautiful image, Wes. I am used to seeing Gassendi much deeper in shadow - I really like this more fully illuminated view.

Alan

July 30, 2005 03:02 AM Forum: CCD Imaging and Processing/Solar System

07/29/05 Schröter's Valley & Aristarchus

Posted By Alan Friedman

Hi Wes -

I guess it will be hard to best your image from last fall - a lunar hall of fame image for sure - but this one is no slouch!

Alan

July 30, 2005 05:40 PM Forum: CCD Imaging and Processing/Solar System

Copernicus

Posted By Alan Friedman

Hi Ed -

Beautiful work. Congratulations!

Alan