From: Mark Gaffney <markgaffney@me.com>

Date: January 21, 2010 2:29:58 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Mars again!

That`s great Jim, 

I take it that`s a very large dormant volcano! 

You take a lot of info I notice when shooting. I had a 3.18 GB moon movie (some 3300 frames) taken with my Scorpion 20SO in which I`d mistakenly left the camera running whilst slewing around. I selected one frame  (the nicest sharpest one) then made 7 manual selection areas around the finest crater (all well over 10.0 in pixel variance) & sat & waited 6 hours for it to process on my iBook. I got nothing for my trouble though, I assume because the blue outlined frame which is the standard for comparison was different to my dark green selected frame? I had about 5 different regions of the moon amongst the different frames..? In a normal movie with fixed viewpoint  I was guessing, the more frames selected the longer it`d take to process? Are you excluding all those frames or including them by the way? Sorry I was a trifle long winded here..! 

Mark.

On 22/01/2010, at 7:58 AM, jimchung2338 wrote:

Wow, look at all the activity on this forum!

And now my turn to add to all the traffic. Mars from Toronto this morning (Jan21) with my 12" SW dob under average seeing conditions - I takes what I gets.

What's interesting is the bright area that I can see in both images which seems to correspond to the Eysium Mons peak (14,000 m elevation). I don't think its a cloud formation since it doesn't appear in the blue channel, only clearly in the green channel.

Ideas?

http://tech.groups.yahoo.com/group/Astro_IIDC/files/Planetary/MarsJan21b.jpg

Jim