The following imagesare of Comet NEAT (C/2001 Q4). They were taken using my Orion 8" scope at f/4 with my MX916 at 2x2 binning unless otherwise stated.
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This is an image of Comet NEAT Q4 taken on 2004-05-15. The image is an average of 5 images, each 60 seconds long, centered on the comet. The comet is moving against the back ground so the stars trail, but the comet does not. |
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This is the same image as above but processed in a different way. The head is smaller, but more of the noise is visible. |
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This is from the above image using a 'LarsonSekanina' rotation filter. It helps to show the rotational gradients in an image. With comet images it shows the jets from the head of the comet. |
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This image was taken with the camera set to full resolution. It is an average of 4, 120 second exposures. |
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This image is a mosaic of two parts. It shows the length of the tail. I had to align the images on the stars so there is a little movement in the comet. I think the gap is a disconnection event in the tail. |
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This is from the above image using a 'Larson Sekanina' rotation filter. It helps to show the rotational gradients in an image. With comet images it shows the jets from the head of the comet. |