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Posts Made By: Alex McConahay

July 19, 2008 05:21 AM Forum: Star Parties

Pacific Astronomy and Telescope Show

Posted By Alex McConahay

On September 13 and 14, the folks at RTMC will be putting on the first Pacific Astronomy and Telescope Show in Pasadena California.

In addition to 102 booths with dozens and dozens of vendors, there will be presentations by Story Musgrave, David Levy, Gary Palmer, Robin and Todd Mason, Terry Mann, John Dobson, and others.

For more info, see telescopeshow.com.

Alex

July 26, 2008 01:27 PM Forum: Meade

Re: Help! with LXD75 Alignment

Posted By Alex McConahay

What symptoms are there of this imperfect alignment?

Is it just that when it goes looking for your alignment stars it does not place them in the field of view?

Or is it that once aligned (and you get the "alignment successful" message), it does not go to the object, and put it in the center of the field?

Or is it just that when you get the alignment, it says x' off W, y' off N?

Or what?

Alex

July 30, 2008 01:46 PM Forum: N.A.S.A.

UFO claims and credibility

Posted By Alex McConahay

It is interesting to see the argument going on about Edgar Mitchell, and it brings up an interesting thing about "proving UFO's."

I want to hear your opinion on a few things.

It seems that "credibility" is defined among other things as related to whether the claim is mainstream. In other words, people may be "credible" until they make a "crackpot" claim. Then they are loony and not credible. Hardly seems a good way to establish credibility.

"First hand experience" does not seem credible even though there have been hundreds of people who claim to have been "abducted." These witnesses/abductees are generally in the category of "not credible." But for most people they only got into the category of not credible when they made their claim.

It seems a circular thing--Claims are considered credible by the credibility of their witnesses. But credibility of the witnesses is defined by the claims.

UFO claimants are going to lose this battle no matter which way they go. Claim the sighting, and lose your credibility.

So--just what information is needed to establish "proof" that we have been visited by others?

Alex

August 11, 2008 11:18 PM Forum: Star Parties

PATS-Pacific Astronomy and Telescope Show

Posted By Alex McConahay

PATS has announced a tentative program for the big show coming up in Pasadena on September 13 and 14. The vendor hall, with exhibits from some seventy vendors and astro organizations opens at 9:00 both Saturday and Sunday, staying open until 5:00 on Saturday, and 3:00 on Sunday.

In the presentation hall next door, documentary producers Robin and Todd Mason will start at 10:00 with "Gateway to the Universe," about the history of the Hale 200 inch, and how, in many ways, it represents Pasadena's importance to astronomy. Terry Mann, President of the Astronomical League, will speak to "What's Out There," followed by Brian Warner and Jerry Foote, of the Society for Astronomical Sciences telling about "Doing Science with Your Telescope." They will be followed by a panel of Caltech Astronomers describing recent frontiers in research. And the day ends about 4:30, when six time astronaut Story Musgrave tells about rescuing the Hubble.

Sunday begins with Gary Palmer, the solar cinematographer, followed by a celebration of John Dobson's birthday (and a promised lecture about Einstein's Geometry!), and Scott Roberts, of the Astronomical Society of the Pacific on "2009-the year of Astronomy." Then Robert Naeye, the new editor in chief, will tell about what goes on behind the scenes at Sky and Tel. Sunday, and the whole show, winds up with David Levy, the author and comet discoverer.

PATS, The Pacific Astronomy and Telescope Show, is being presented by the folks who bring us RTMC. It is two days of vendors, exhibits, and presentations. It also includes an astro-imaging workshop with Tony Hallas the day before. For more information about PATS, you can go to http://www.rtmcastronomyexpo.org/PATS.htm

August 19, 2008 03:47 PM Forum: CCD Imaging and Processing/Deep Sky

Tony Hallas/Don Goldman Workshop at PATS

Posted By Alex McConahay

Hi all,

We are getting more enrollments to the Tony Hallas/Don Goldman workshop in Pasadena, for September 12, the day before PATS.

Tony is a premier Astro Imager, and has developed a new presentation for the PATS event, where he will demonstrate how he teases all that he can out of every photon. You are encouraged to bring your laptop and follow along.

Don Goldman will be demonstrating techniques relating to narrow-band imaging, a tool that allows you to find detail normally hidden, and to take pictures from areas where light pollution might otherwise keep you from imaging at all.

We'll also have a brief session about how to use the basic tools of image processing.

This event is the same weekend as the Pacific Astronomy and Telescope Show, where some 70 vendors and astro-organizations will be joined by ten top rate presenters (David Levy, Story Musgrave, Gary Palmer, John Dobson.......) in Pasadena, California.

More information about the workshop is at
http://www.rivastro.org/ras_pats_imaging_event.html

Hope to see you there,

Alex


August 24, 2008 08:17 PM Forum: Off Topic Discussions

Re: RFID

Posted By Alex McConahay

I just finished reading the maghazine article.....Really quite impressive and thought provoking.

Alex

September 5, 2008 11:03 PM Forum: Star Parties

Pacific Astronomy and Telescope Show--Week Away

Posted By Alex McConahay

With PATS coming up in less than a week now, I just thought I'd announce that the "club discount tickets" are no longer available from the organizers. Also, the discount tickets available to the attendees of the Imaging Workshop on Friday are limited only to those attendees. So, the only way to get tickets at this point (for those not attending the Hallas/Goldman workshop on Friday) is at the box office or Ticketmaster, either pre-sale, or day of show!

Alex


September 22, 2008 02:28 AM Forum: AstroMart FAQ

Quitting Astromart

Posted By Alex McConahay

How does one quit Astromart?

(No, not me--somebody else is asking, and I cannot find a way to withdraw.)

Alex

October 6, 2008 01:49 PM Forum: Equipment Talk

PoleAlignMax

Posted By Alex McConahay

I went out with PoleAlignMax last night.

After some frustration (not knowing how to use the ASCOM telescope interface, setting the plate solving parameters correctly.......) I got it to make the little bulls-eye and tell me what it thought was wrong with the polar alignment on my G11 (C9.25@F63, ST-7, The Sky5, Level 4, CCDSoft).

Then it told me to center any bright star in the rectangle. And I could not figure out what it wanted me to do.

What is the next step?

Where is the rectangle they are talking about? How do I know if it is centered? ETC.....

Anybody know of a good set of instructions out there?

Alex


October 10, 2008 12:30 AM Forum: CCD Imaging and Processing/Solar System

Faustini Image

Posted By Alex McConahay

Faustini is a little crater on the south end of the moon. I did not know that until I got a message from a friend at JPL which said they were looking for people willing to image it in white light. It is part of establishing baseline data for a mission that is coming up in July.

Well, I went and took the picture, and here it is. (I cannot tell where Faustini is on this picture--it is so far south, it is on the rim itself. I think I would have to be in a spacecraft to see it from where I was.)

Alex

St-7 on Celestron 9.25 @f6.3, 18 x .25 sec, Astrodon 9mm Halpha filter (had to use narrow band filter to cut out most of the light since my camera could not expose short enough).

PS.....here is the info from my friends at JPL:

>Subject: Call for Lunar Images Supporting NASA's LCROSS
> Mission
>
>NASA Astronomer Diane Wooden is about to begin an observing session
>using the IRTF at Mauna Kea in support of next year's LCROSS lunar
>impactor mission. The phase and libration this Wednesday, Thursday,
>and Friday (October 8-10) could be a good match for those of one of
>our favored impact scenarios next year. This will provide an
>opportunity for detailed planning and observations of potential
>target lunar terrain. Diane would like to supplement her
>observations with images of the lunar south polar region acquired
>with a range of amateur telescopes over the same evenings. Diane's
>observations will be in the IR, and amateur white-light observations
>could provide valuable additional data for these lighting
>conditions. Faustini crater, one of the potential impact sites will
>be on the limb on the night of Oct 10 UT (Oct 9 PDT). Comparison of
>IRTF and amateur observations now will also help determine how
>amateur observations can best be used during the impact and provide
>valuable information to participating amateurs in planning their
>imaging procedures for next year.
>
>Images from telescopes of all sizes are welcome. If you are able to
>participate and acquire images during these selected evenings,
>please send the following information to me at [email protected]:
>
>Name of observer
>Email address of observer
>Aperture of telescope
>Focal length of telescope
>Type of camera used
>Camera detector dimensions
>Exposure information
>Time and date of exposure
>Location from which exposure was taken
>
>Please do not send your actual image file along with this
>information! Once I receive the above information from you, I will
>contact you and work out a way to receive your file in a way that
>will not overwhelm our mail server here.
>
>
>A map of the extreme south polar region of the Moon can be found at:
>http://www.lpod.org/?m=20070512
>Note that Faustini is labeled as R3 on these maps (next to the
>crater Amundsen). The crater Cabaeus is also of interest as a
>possible impact site. Three additional images identifying south
>polar features are included in this message.
>
>NASA's LCROSS mission is scheduled to fly in 2009. It is
>co-manifested with LRO; both missions will launch together aboard an
>Atlas V out of Cape Canaveral, Fla. LCROSS will use the Centaur
>upper stage of the launch vehicle as a kinetic impactor directed at
>2.5 km/s into one of the permanently-shadowed craters at the Moon's
>pole. The LCROSS
>spacecraft will fly directly through the resulting plume of debris,
>analyzing it for signs of water ice that may have accumulated within
>the crater. The debris plume will also be studied by space-based
>assets (such as LRO, and HST), ground-based observatories, and
>amateur telescopes. Researchers believe that the LCROSS impact plume
>may well be observable in amateur telescopes, and that amateurs may
>be able to take on a valuable role in this exciting mission.
>
>Please share this information with your colleagues. I am looking
>forward to working with you as members of the amateur community
>become key participants in the LCROSS mission.