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Jonathan,<BR> <BR>This is amazing, I was looking at your suggested sight when your e-mail arrived. Please see the following and use a trick that a good friend of mine "Tom English" taught me many years ago. View the image and "squint" your eyes.<BR> <BR><A href="http://www.castfvg.it/ammassi/globu/m13_04.htm">www.castfvg.it/ammassi/globu/m13_04.htm</A><BR>
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The propeller can be seen so clearly using this technique. <BR>
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Re: Sidgwick's remarks concerning moderate aperatures holds ture in many instances of other objects also.<BR>
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Thank you for sharing...excellent.<BR>
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Roger Ivester <BR>
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<BR> <BR> <BR><BR><BR> <BR><FONT face=Verdana size=4></FONT> <BR> <BR><FONT face=Verdana><EM><STRONG> I</STRONG> can see how it might be possible for a man to look down upon the earth and be an atheist, but I cannot conceive how he could look up into the heavens and say there is no God. Abraham Lincoln</EM></FONT><BR><BR><BR><BR> <BR>> Date: Wed, 6 May 2009 18:47:03 -0400<BR>> From: jonathan.kade@gmail.com<BR>> To: lvas@lvlug.org<BR>> Subject: Re: [Lvas] FW: Observing the Propeller<BR>> <BR>> Roger and all,<BR>> <BR>> The M-13 propeller is one of those famed characteristics I've tried to<BR>> see with a variety of instruments, with no real success. True dark<BR>> skies would probably help a great deal. Here's a discussion that<BR>> shows a pretty good candidate - though it's a far cry from Lord<BR>> Rosse's giant centered propeller.<BR>> <BR>> http://www.popastro.com/phpBB2/viewtopic.php?t=675&sid=afe5a0521c99b986d76d682b7d2ef5ac<BR>> <BR>> Then again, his sketch of M1 had more to do with crustaceans than with<BR>> nebulae, too ;)<BR>> <BR>> I have a certain suspicion of "sweet spot" telescopes for particular<BR>> details in objects. I can't help but recall J.B. Sidgwick's advice<BR>> that, for some reason, the canals on Mars were best observed with an<BR>> instrument of moderate aperture.<BR>> <BR>> Clear skies,<BR>> <BR>> Jonathan<BR>> <BR>> On Wed, May 6, 2009 at 10:45 AM, roger ivester <drivester@hotmail.com> wrote:<BR>> > LVAS all,<BR>> ><BR>> > Just wanted to share an e-mail from earlier this morning, sent to some of<BR>> > my local observing friends.<BR>> ><BR>> > I want to have some company for additional notes and the opportunity to<BR>> > observe through a slightly larger scope than my 10-inch. We will work on<BR>> > this months objects, the M-65/66 group as well as the June objects.<BR>> ><BR>> > I want to use a 12-inch Dob owned by Steve Davis "especially" for the M-13<BR>> > "propeller", as this was the size used by Bortle and Di Cicco for their<BR>> > sightings.<BR>> ><BR>> > All of these guys are fabulous imagers, but for this session it will be<BR>> > "visual" only. Hopefully we can pull this off in a couple of weeks or<BR>> > so. This should make for a nice report in the LV "Observers Challenge".<BR>> ><BR>> > See the following e-mail...<BR>> ><BR>> > Roger Ivester<BR>> ><BR>> ><BR>> ><BR>> > ________________________________<BR>> > From: drivester@hotmail.com<BR>> > To: steve.davis@fascontrols.com; blclapper@yahoo.com;<BR>> > dolive@gardner-webb.edu; jdire@gardner-webb.edu; drivester@hotmail.com<BR>> > Subject: Observing the Propeller<BR>> > Date: Wed, 6 May 2009 12:02:45 +0000<BR>> ><BR>> ><BR>> > Steve, Brett, Dr. Don, Dr. Jim<BR>> ><BR>> > RE: M-13 and the three dark lanes as first mentioned by WSH in the July 1953<BR>> > edition of S&T.<BR>> ><BR>> > Steve, you do have a portable 12-inch Dob...correct?<BR>> ><BR>> > Could we plan a "serious" observing session at the top of Moore Mountain, in<BR>> > an attempt to try and follow John Bortle and Dennis di Cicco's observations?<BR>> ><BR>> > Both were able to see the three dark rifts in 1980 and 1981 using 12-inch<BR>> > reflectors. There may be something special about this aperture in regard to<BR>> > seeing the lanes.<BR>> ><BR>> > If you recall from the previous e-mails, Dennis di Cicco was using the<BR>> > 12-inch porter scope at Stellafane and found them easy at 180x. Bortle had a<BR>> > 12.5 inch and was using 176x<BR>> ><BR>> > We have plenty of time, but this month might be good for an observation only<BR>> > 20 mins N of Boiling Springs. I want to do a sketch, as a verification that<BR>> > we saw the "propeller"... if indeed it is possible. Other than the 1850's<BR>> > sketch by Lord Rosse I personally have never seen another<BR>> > sketch...especially modern day.<BR>> ><BR>> > Jim, Don this would present another possibility for an article in S&T next<BR>> > spring...if we are successful.<BR>> ><BR>> > Steve, you have invited me on many occasions to go with you to the Mt.<BR>> > Mitchell overlook at 4800 ft. I promise if we can not achieve this project<BR>> > here, I would be honored to go with you....really.<BR>> ><BR>> > I have an obsessive desire to attempt this endeavor and I want a sketch.<BR>> > This is also our "Observers Challenge" project with the Las Vegas group for<BR>> > June. We will also work on the M-65/66 and NGC-3628 for this month LV<BR>> > report.<BR>> ><BR>> > Gentlemen, please let me know your thoughts regarding...<BR>> ><BR>> > Roger<BR>> ><BR>> ><BR>> ><BR>> ><BR>> ><BR>> > I can see how it might be possible for a man to look down upon the earth<BR>> > and be an atheist, but I cannot conceive how he could look up into the<BR>> > heavens and say there is no God. Abraham Lincoln<BR>> ><BR>> ><BR>> ><BR>> ><BR>> ><BR>> > ________________________________<BR>> > Insert movie times and more without leaving Hotmail®. See how.<BR>> ><BR>> > ________________________________<BR>> > Windows Live™: Keep your life in sync. Check it out.<BR>> > _______________________________________________<BR>> > Sent via the Lvas mailing list Lvas@lvlug.org<BR>> > Set options or unsubscribe at http://lvlug.org/mailman/listinfo/lvas<BR>> > The LVAS discussion list is hosted courtesy of LasVegas.Net<BR>> ><BR>> ><BR>> _______________________________________________<BR>> Sent via the Lvas mailing list Lvas@lvlug.org<BR>> Set options or unsubscribe at http://lvlug.org/mailman/listinfo/lvas<BR>> The LVAS discussion list is hosted courtesy of LasVegas.Net<BR><BR><BR>
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Windows Live™: Keep your life in sync. <A href="http://windowslive.com/explore?ocid=TXT_TAGLM_BR_life_in_synch_052009">Check it out.</A><BR><br /><hr />Windows Live™: Keep your life in sync. <a href='http://windowslive.com/explore?ocid=TXT_TAGLM_BR_life_in_synch_052009' target='_new'>Check it out.</a></body>
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