M13 - The best globular cluster in the Northern Hemisphere. In the Constellation
Hercules, this is a composite of 12 images, each 30 seconds, ISO800. Taken 7-9-2005.
Calibrated, aligned and combined in ImagesPlus. Curves, levels and unsharp masking in
Photoshop. Gradient removal with GradientXterminator. Noise Reduction with NeatImage.
It's still noisy, but further reduction took away from the marvelous sparkling core, so I left
it.
Hercules, this is a composite of 12 images, each 30 seconds, ISO800. Taken 7-9-2005.
Calibrated, aligned and combined in ImagesPlus. Curves, levels and unsharp masking in
Photoshop. Gradient removal with GradientXterminator. Noise Reduction with NeatImage.
It's still noisy, but further reduction took away from the marvelous sparkling core, so I left
it.
Hazeldale Observatory Astronomy
 |  |  |  |  |  |  |  |
