From: Mark Gaffney <markgaffney@me.com>

Date: September 30, 2009 9:14:08 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] M71


Hi Milton, 

Nice image of M 71 under the conditions you`re working under! Talking about the moon, if I frame the moon at prime focus with the C9.25 I notice using The Sky X that Element 3 which`d be the ring where the guiding camera`s FOVI begins in the below snapshot is 21.65 arcminutes & where it ends is 29.26 arcminutes. So the limit of the moons arc is around 29 arc minutes...Depending upon where the CRG sets itself upon the moon at prime focus I should be able to estimate FOVs for my f6.3, Meade f3.3 & Mogg 0.3 FRs from The Sky X. Attached also is an image of the moon taken with the CRG attached but also a Mogg 0.3 FR & the Flea 2...My intention had been to do some estimations with the CRG`s offsets when taking this last image but I got carried away at how good  things looked & started imaging...! 


Mark.

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On 30/09/2009, at 1:42 PM, milton_aupperle wrote:

Hi Folks;

The smoke got blown out of the sky by the 60 to 90 kmph winds driving the dust storms early sunday morning. So I managed to finally (3rd attempt) capture Messier 71 on sunday night. Even though the moon was nearly at 3rd quarter, it was low enough that it didn't interfere too much with my 9 minute LRGB image.

http://www.outcastsoft.com/AstroImages/M71_20090927_MJA.jpg

Details for it are embedded in the bottom of the image.

TTYL..

Milton aupperle