APOD Oct. 7, 2004

Comments and questions about the APOD on the main view screen.
moontrail2

APOD Oct. 7, 2004

Post by moontrail2 » Wed Oct 13, 2004 9:00 am

It seems there isn´t any kind of moontrail in the picture? I suppose there should be, shouldn´t be?

Thank you,
mt.

Guest

Post by Guest » Wed Oct 13, 2004 11:28 am

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.

Guest

Post by Guest » Wed Oct 13, 2004 11:34 am

Just wanned to add blue-only untransformed image:

Image

Guest

Post by Guest » Wed Oct 13, 2004 11:34 am

damn. Image

sorry.