17P/Holmes now Fading…

November 21st, 2007 by Chris

This image certainly doesn’t do it justice, with the fog and waxing 3/4 moon last night, but it is fading as the debris field spreads.
17P/Holmes, 21 November 2007

This image is considerably more processed than the others I’ve posted because of the relatively high level of moon-glow in the background. I stretched the contrast (the brightness ‘curves’ for the imaging folks) pretty significantly to keep the background dark while enhancing the comet itself.

The bright star is Mirfak, alpha Persei, at magnitude 1.82. Monday night, when it was cloudy here, the comet was actually visually overlaid onto the star. I’m sort-of curious whether anybody did any spectral analysis of the cometary debris with such a nice bright spectral source shining through the field.

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