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Re: [APML] OT: Pleiades
Outstanding Chuck! Your abundant expertise in image processing has
really paid off here.
John
Chuck Vaughn wrote:
> Ok, just one more. You've seen the red end of the spectrum in the
> 20Da, now the blue end:
>
> http://astrophotography.aa6g.org/Astronomy/Astrophotos/m45_20da.html
>
> This image recorded more in red than any previous M45 of mine has in
> blue. Open the image in PS and look at the blue channel. Almost the
> entire thing is nebulosity, you just can't see it in blue because the
> contrast detection of the eye is poor in blue. I'm afraid my old
> Pleiades tricolor is pathetic compared to this.
>
> Chuck
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