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Friday, November 22, 2013


Comet 2P/Enke in STEREO, 19 November 2013

Comet 2P/Enke seen in the STEREO H1A imager on November 19. The two brighest objects are Mercury (left) and Erth (right). Enke is below Mercury. Click to embiggenAnimation of the images. Images stacked, registered then differenced using ImageJ. Click to embiggen to see some nice tail action.

While waiting of comet ISO to turn up in the high resolution STEREO H1A images (as opposed to the low resolution beacon images) here's a nice image of 2P/Enke in H1A. Comet Al gave me his ImageJ macro for using image differencing to really pull out the detail in the comet. You can see some great motion in the tail of the comet this way, better than the raw images.

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