I don't think that's rotation you're seeing, I think it's an aliasing artifact in the digital image. Try this: 1 - Import Patrick's image into Photoshop 2 - Sample the color of the line that bisects the image 3 - Select the Photoshop line tool and set the line width to two pixels, which approximates the width of the original line in the image. 4 - Now draw a parallel line right next to the original line. In my case, I made it about 1/2" below the anomalous line. 5 - Zoom the image to 200% and take a look at both lines. The aliasing matches exactly. Conclusion: The object that photobombed Patrick's image wasn't tumbling, that's just an artifact of the image's digital processing. My two cents, Seth -----Original Message----- From: Utah-Astronomy [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Chuck Hards Sent: Thursday, October 30, 2014 6:22 AM To: Utah Astronomy Subject: Re: [Utah-astronomy] What the...? Something rotating very fast! On Thu, Oct 30, 2014 at 6:04 AM, Wiggins Patrick <paw@getbeehive.net> wrote:
Imaging NGC 3458 a few minutes ago and got this:
http://users.wirelessbeehive.com/~paw/temp/NGC3458.JPG
Not sure what would leave a trail like that.
Fun stuff,
patrick
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