# Stargazingmeteor shower question

#### james fisher

Ok I was wondering....... is it safe to use comet cleanser during a meteor shower??? I certainly would not wish to cause a cosmic accident!

#### COLGeek

Moderator
This begs the question of "why do we park in driveways, when we drive on parkways?".

#### james fisher

In looking at stas I wondered if there were any structures that might be visible if the images were enhanced to bring out low visibility features. Accordingly, I used gis software to shrink the x axis of a image of the eagle nebula, ESO 0142a, to 10% of its normal width, while leaving the y axis at normal length. To my astonishment
i have found thin dark line areas bordered by stars that fall in precisely straight lines. The subsequent parallel lines all seem to have the same relationship between the stars and the dust lane, that is if the stars are on the left side of the "dust lane" then subsequent parallel lines all have pattern, with the stars on the left. Some of these apparent "dust lanes" extend for the full 9
arcminutes width of the image. The "dust lanes" are marked by much
higher than normal star density in a straight line bordering the dark
lines. These lines also repeat what seems to be remarkably consistent intervals across the image.

I used Manifold Gis to decrease the
width of the image to 10% of the original width. By rotating the image
and then decreasing the width of the image, lines appear at many
different orientations, composed of dark lanes bounded on one side by
much denser than normal numbers of stars. If this is a discovery I
would like to name these lines Shaw lines in memory of my high school
physics teacher Terry Shaw.

Manifold Gis decreases the area of the image in the following manner:
A set of control points are marked on the image. The position of the
control points is noted in orthographic projection. Then a blank
drawing is made and the corresponding number of control points is
inserted in the blank image. The position of the points in the blank
image is calculated by taking the distance between points on the
original image and multiplying by 10%. for one axis of the image. The
other axis is left unchanged. This causes the image data to be
preserved but the width of all of the features is reduced to 10% of
the normal width. I suspect that a 5% width might work as well or
better but I have not tried this yet.

#### james fisher

If I could figure out how to post my pdf I would send the image in.

#### COLGeek

Moderator
If I could figure out how to post my pdf I would send the image in.
Post images to a site like imgur and then post the link on the site. Looking forward to seeing it.

#### COLGeek

Moderator
I suggest not posting a PDF, rather use a JPG or GIF.

#### james fisher

There are lots of circular features as well.

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