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Old 21-02-2016, 09:23 PM
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Quark (Trevor)
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Sat Feb 16th EZ feature & +44.2 spot

In my Feb 16th data, in all filters there is a bright feature in the EZ, it is accompanied by a dark feature which is immediately above and slightly leading it.

I measure the centre of the bright feature to be at Lat +8.7 L1 342.9, L3 77.1
I measure the centre of the dark feature to be at Lat 0 L1 340.5, L3 74.8


This feature looks very similar to the one I tracked through 2015, strikingly like my data from Sept 28th 2015.


All data sets include an inset of the feature that was more heavily processed.
I have attached animations of the more heavily processed data


Note that there is also a bright spot that shows up in RGB at Lat +44.2 L3 84 it is more difficult to see so I have added indicator arrows to the insets.


Also note that the EZ feature is so bright that it shows up well even in the Polar projections, the +44.2 spot also shows up in the RGB Polar projections.


Regarding the bright & seemingly associated dark EZ feature. For a comparison I have attached here a 685nm IR data set from Sept 28th 2015 along with one of the frames from my Feb 16th 2016 animation. Both features are strikingly similar.

Regards
Trevor
Attached Thumbnails
Click for full-size image (s2016-02-16_18-04-54_ir_tba.jpg)
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Click for full-size image (s2016-02-16_18-04-54_polar_tba.jpg)
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Click for full-size image (s2016-02-16_18-19-30_rgb_tba.jpg)
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Click for full-size image (s2016-02-16_18-19-30_polar_tba.jpg)
35.0 KB8 views
Click for full-size image (s2016-02-16_tba_685nmIR.gif)
74.5 KB8 views
Click for full-size image (s2016-02-16_tba_r.gif)
48.8 KB9 views
Click for full-size image (s2016-02-16_tba_rgb.gif)
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Last edited by Quark; 21-02-2016 at 09:25 PM. Reason: error
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Old 21-02-2016, 09:28 PM
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Quark (Trevor)
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The comparison data from Sept 2015 and this session Feb 18th.
Attached Thumbnails
Click for full-size image (s2015-09-28_09-03_ir_tba.jpg)
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Click for full-size image (s2016-02-16_18-04-54_ir_tbaAnim.jpg)
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