Re: Comet like Ring nebula, or a planet
- From: Greg Crinklaw <theskyhoundyoureye@xxxxxxxxx>
- Date: Mon, 29 Oct 2007 14:31:05 -0600
Chris L Peterson wrote:
On Mon, 29 Oct 2007 09:41:50 -0700, Rich <rander3127@xxxxxxxxx> wrote:
This isn't an ideal object for video/webcam imaging. It is too dim for
such cameras, and it is too large. The highest detail images are likely
to come from short exposures, possibly stacked, made by cooled CCD
cameras with moderately large sensors.
While I agree that a dark sky will be critical to visual observers, isn't this a little over stated for imaging? I mean, the sky background can always be removed from the signal as long as the signal to noise is great enough can't it? Isn't that why imaging can be done from light polluted locations? Easier maybe. But I think critical, no.
I would think the larger issue would be the enormous dynamic range involved given how much fainter the outer envelope is than the comet itself.
Greg
--
Greg Crinklaw
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Comets: http://comets.skyhound.com
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