From: "richter1956" <richter1956@yahoo.com>

Date: April 28, 2008 12:31:41 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: Moon Anaglyph

Hi Jeff,

i know the other possibilities for 3D imaging of the Moon.

The one i choose is the easier for a single person / single night  because it is not so 

difficult to get some image approx 3 hours before and 3 hours after the meridian (4 hours 

could be even  better of course).

In this case we could get approx 1° of difference.

That is not much (2° could be better) but enough to get some 3d  effect.

Did you check with 3d glasses the image i uploaded into the Lunar section?

The sphere shape could be easily detected.

The limit of this method is the NON.realtime imaging like the simultaneous photos do,

Another little problem is caused by the terminator and the shadows that move a little 

within the 6 hours interval.

Anyway i like this kind of imaging not for scientific purposes but for the emotional impact 

caused by the 3D view.

If that method will work even on detailed images, like the Alan Friedman ones, then we 

could dream to fly with an Apollo mission :-)

Regards

Alberto

--- In Astro_IIDC@yahoogroups.com, Jeff Phillips <imjeffp@...> wrote:

I was involved briefly with a Luna 3D project a couple of years ago  

where we were trying to coordinate photographers in both hemispheres  

to make simultaneous photos of a feature, using the Earth's diameter  

as a baseline. IIRC, we were never able to coordinate dates and weather.

The other problem was that the eastern photographer had to shoot  

early in the morning.  If I were going to try again, I'd try to  

coordinate two cameras, one in S. Africa and the other in eastern  

Europe (around 20°E for both, 30°S & 50°N).

One thing to try for a single observer would be to use libration to  

create your baseline. I'd need to do more research to determine two  

nights with the moon at the same age (within several hours at least)  

and opposite librations (if that's the word).

On Apr 28, 2008, at 12:05 PM, Alan Friedman wrote:

Hi Alberto,

Thanks for the interesting project idea.

I am afraid if I ever experienced six hours of good seeing, I will  

be flying with a harp in heaven! But I will keep it in mind should  

I encounter such a fine night on earth.

best wishes,

Alan

On Apr 28, 2008, at 6:26 AM, richter1956 wrote:

Hello to all,

i recently added 2 files in the Lunar section.

One of them is an anaglyph to be watched with red/cyan 3D glasses:

Anaglyph-SouthPole 3000x2000.jpg

I! 'm wondering about doing some anaglyph starting from high-end  

quality images like Alan Friedman ones... :-)

Maybe Alan could kindly take a wonderful detail (like the  

delicious Plato or Copernicus i can see on his site ) 3 hours  

before the meridian transit and 3 hours after that  

transit....pleeease!!

I guess  that 6 hours-difference  could be enough to reveal the  

internal 3d structures of the craters but i'm not sure of that.

The sine-qua-non condition is to have the very best image quality  

and the most similar settings (exposure, contrast etc) for the 2  

images.

I attempted to get single craters images but my quality was not  

enough even because i found bad seeing in almost one of the 2  

shots (yes you need 6 hours of good seeing).

The other file added is a Moon mosaic grabbed with my C8.

I printed a 70x100 cm poster of it:

080214-The Moon 6353 x 4326.jpg

kind regards to all

Alberto

PS: i did some experiment with DMK on well known DSO (M51) not  

guided: really interesting results.

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