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The Sun (IR) 2013 May 06

Posted on June 19, 2013 by davidardittiJune 19, 2013
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Dealing with a backlog of observations here: some nice sunspots imaged with a 5-inch SCT in IR 804nm. The image is not rectangular because I cut out a sensor dust mote. (Click to enlarge) … Continue reading →

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The Sun (H alpha) 2013 March 04

Posted on June 14, 2013 by davidardittiJune 14, 2013
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This is an image I took in March but have only just got round to processing. (Click to enlarge) … Continue reading →

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The Sun (H alpha) 2013 May 15

Posted on May 16, 2013 by davidardittiMay 16, 2013
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A lot of activity visible. Very spotty in white light as well, but  didn’t get a white light image. … Continue reading →

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Messier 97, the Owl Nebula

Posted on May 6, 2013 by davidardittiMay 6, 2013
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Here’s a classic object for this time of year, the ghostly Owl Nebula, in a false-colour image taken through H alpha and OIII filters. It gives the impression of two spherical shells of gas displaced from one another, but, unlike … Continue reading →

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The Sun ( H alpha) 2013 May 03

Posted on May 4, 2013 by davidardittiMay 4, 2013
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It’s the time of year for solar observing again, and there was a nice active disk yesterday in both H alpha and white light. Here’s an image taken by the method I’ve been using for a couple of years now, … Continue reading →

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Messier 81 2013 March 02–14

Posted on May 4, 2013 by davidardittiMay 4, 2013
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This is an LRGB image with the L from a light pollution filter, but it is rather undersaturated as the data is dominated by the luminance; true RGB from such a light-polluted environment  as I work in is probably impossible. … Continue reading →

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Comet C/2011 L4 (PanSTARRS) 2013 April 02

Posted on April 9, 2013 by davidardittiApril 9, 2013
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The comet was slightly closer to M31, and now clear of the spiky tree. M31’s companion galaxies also show up here. You can see the atmospheric dispersion effect in the star images near the horizon. This image is oriented along … Continue reading →

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Comet C/2011 L4 (PanSTARRS) 2013 April 01

Posted on April 9, 2013 by davidardittiApril 9, 2013
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Here’s the comet in a spiky tree in a DSLR image, at the opposite end of the field from M31. … Continue reading →

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Saturn 2013 March 31

Posted on March 31, 2013 by davidardittiMarch 31, 2013
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The seeing looked steady visually on this occasion, but on-screen it was rippling very fast at a small scale (not surprising for 27º altitude). Three sequences of RGB were captured, and all combined for a 14 minute run, interspersed with … Continue reading →

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Comet C/2011 L4 (PanSTARRS) 2013 March 29

Posted on March 29, 2013 by davidardittiMarch 29, 2013
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Tonight I finally obtained an image of C/2011 L4 (PanSTARRS), after all these cloudy evenings. There was a gap in the cloud for about 30 minutes which I exploited. The comet is going behind a nearby fir tree during the … Continue reading →

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