You're welcome Joe. On 2/27/2013 4:04 PM, Joe Bauman wrote:
Oh I see, William. Thanks for the kindness of giving me an explanation. -- Joe
________________________________ From: William Lockman <lockman@aznex.net> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Wednesday, February 27, 2013 3:57 PM Subject: Re: [Utah-astronomy] 2012 DA14 parallax demonstration
The smaller image is superimposed over the part of the sky on the large image that the smaller image covers.
On 2/27/2013 2:20 AM, Joe Bauman wrote:
Rats, I haven't been able to relate the pictures to each other. I can't make out similar star patterns in them. -- Joe
________________________________ From: Patrick Wiggins <paw@wirelessbeehive.com> To: utah astronomy listserve utah astronomy <utah-astronomy@mailman.xmission.com> Sent: Wednesday, February 27, 2013 12:15 AM Subject: [Utah-astronomy] 2012 DA14 parallax demonstration
I recently posted a request on the Minor Planet Mailing List asking to hear from anyone who happened to be imaging 2012 DA14 at the same time I was. My hope was to find a picture taken at the same time as one of mine and to use the two images to show the effects of parallax.
Happily a guy who had been using the Vatican Advanced Technology Telescope in Arizona that night to shoot 2012 DA14 replied and we were able to determine that one of his many images had been taken within half a second of one of mine.
The FOV of his image was smaller than mine so I had to do a bit of Photoshopping to align the two and then add a third image taken from the STScI Digitized Sky Survey to show context.
I thought that since there is about 800 km between our two sites and 2012 DA14 was still pretty close (~210,000 km) I'd see some parallax but was actually surprised at how much:
http://www.slas.us/gallery2/main.php?g2_itemId=68&g2_page=8
Clear skies,
patrick _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy
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