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APOD Oct. 7, 2004

Posted: Wed Oct 13, 2004 9:00 am
by moontrail2
It seems there isn´t any kind of moontrail in the picture? I suppose there should be, shouldn´t be?

Thank you,
mt.

Posted: Wed Oct 13, 2004 11:28 am
by Guest
nope, there is moontrail, but its shape differs from those of stars, and resembles "U" twice as big as moon itself in diameter.

you can see it best looking at blue channel of image. or, try this transform on blue channel to "fight" image overexposure and see a bit more details:

Image

Similar transforms on other two channels give this composite image

Image

that shows brightness distribution details in sort-of false color.

Posted: Wed Oct 13, 2004 11:34 am
by Guest
Just wanned to add blue-only untransformed image:

Image

Posted: Wed Oct 13, 2004 11:34 am
by Guest
damn. Image

sorry.