File:Orion satellite highway.jpg

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English: What happens when you do not use the sigma clipping pixel rejection method during stacking but "max" signal? You get to see all the satellite trails and hot pixels (the red, green and blue dots) And passing Asteroid 747 Winchester as a bonus in this case! This is a 63 * 180 second stack from 15/16 november 2015.


The parallel satellite trails to the right are clustered because they belong to a special class of satellites - the geosynchronous satellites.

If you wonder why the satellites leave trails even though they should appear stationary in the sky, the reason is that the telescope is moving (tracking) to compensate for the rotation of the Earth. And because the satellites are at a distance of 35800 km, the position in the sky in this image is also typical for a location at 39 degrees north lattitude (Portugal).
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Author Keesscherer

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Date/TimeThumbnailDimensionsUserComment
current09:10, 23 May 2018Thumbnail for version as of 09:10, 23 May 20182,549 × 2,295 (2.52 MB)Keesscherer (talk | contribs)User created page with UploadWizard

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