From: albe albo <richter1956@yahoo.com>
Date: January 19, 2010 1:57:24 AM MST
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] capturing lunar features in stereo
Hello Howard,
yes, it works.
Usually they are needed at least 2° or 3° of separation in order to achieve a nice 3D effect but our brain is enough skilled to get 3D effect even with smaller angles.
It is interesting to try that worldwide experiment.
I did something similar but... by myself.
I quickly travelled six hours in order to take 2 distinct shots from 2 different sides of our planet.
Please check this link:
The drawing at the bottom of that pic is self explanatory
Instead of taking two contempory shots in different place of earth i waited that the earth took me from a place to another.
Approximately 6 hours difference.
You can see the animated difference of point of view watching this video:
http://dl.dropbox.com/u/1094920/LUNA/Libration.avi
where you see the change within 5 or 6 hours.
The only serious defect of this method is that the features close to the terminator may change a lot their shadows spoiling the 3D effect.
Pleas keep us updated about your testing!
cheers
Alberto
Da: Howard <howard.fink@nyu.edu>
A: Astro_IIDC@yahoogroups.com
Inviato: Mar 19 gennaio 2010, 04:42:19
Oggetto: [Astro_IIDC] capturing lunar features in stereo
I'd like to try taking simultaneous pictures of lunar features from two widely separated points on Earth; ideally separated by 9500 km, but 6000 and up is worth experimenting with. The ideal distance for stereo pictures is 40 times the separation; up to 60x should work. I live in New York City; any Hawaiian or European correspondents? Australia is too far, Japan ideal.
Howard Fink
howard dot fink at nyu dot edu
