From: Mark Gaffney <markgaffney@me.com>

Date: September 3, 2009 4:28:44 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Dual transit of Jupiter recaptured (from Toronto)

Hi Jim, Terry & everyone. 

Firstly nice imaging with the Flea camera of Jupiter as always Jim. Your mono Flea most probably has an advantage over my colour Flea 2 & your patience & persistence with planetary imaging is admirable! I`ve marvelled a number of times over the temperatures you & Milton are often imaging in! Secondly Terry, I guess you`ve passed over the purchase of the DMK 41 in favour of the 21 type...is that right? You might want to look at that purchase again if you want to do Hi Res imaging of the Moon for instance (look at Alan`s beautiful pictures..!) I`m certainly contemplating it one day! As to a colour camera you might want to look at the PGR site I sent you the link to a while ago. It would depend on how much you`re considering spending but my colour Flea 2, at 648 x 488 effective pixels, 7.4 micron square is a good choice for detailed moon mosaics. Look at Milton`s excellent mosaics done a couple of years ago with a comparable Flea camera for instance. Tim, from San Francisco has posted some nice Jupiter shots taken with a reflector & a mono Flea 2 with a greater resolution than this...You might like to check the Files & Photo section of the group`s site... 

Yours, 

Mark. 

On 04/09/2009, at 7:24 AM, Terrence R. Redding, Ph.D. wrote:

I too was out under the stars imaging Jupiter.  I will most likely stay with the effort until I am able to produce an image I am proud of.

Jim, very nice work.  I am looking for a powered filter wheel to add to my imaging kit and considering a color camera to use with Astro-IIDC.

All comments and recommendations will be greatly appriciated.

Terry - W6LMJ - 14.287 

Terrence R. Redding, Ph.D. 

Redding Observatory South, West Palm Beach, Florida

http://olt.net/learningstyle/Site_2/Learning_Style_Research.html

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Observers (AAVSO): RTN http://www.aavso.org/

On Sep 3, 2009, at 3:57 PM, jimchung2338 wrote:

Last night the seeing was very nearly perfect and I was able to capture the dual transit of Ganymede & Europa from 11 PM until 2 AM by taking an image every 20 minutes. Jupiter shows lots of good detail at I suspect the limit of my 8 inch aperture and its 30 degree altitude and even Ganymede is visible as it travels across the disc of Jupiter.

I am now officially retired from imaging Jupiter for 2009.

http://tech.groups.yahoo.com/group/Astro_IIDC/files/Planetary/DualtransitJupiter2slow.gif

Regards,

Jim