Articles Archives - Astrodoc: Astrophotography by Ron Brecher

Processing With PixInsight – Sky & Telescope, August 2016

Ron Brecher — Thu, 09 Jun 2016 18:25:41 +0000

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Combining Colour and Narrowband Images

Ron Brecher — Sun, 13 Jul 2014 16:53:39 +0000

Combining Colour and Narrowband Images July 13, 2014 INTRODUCTION It is challenging to produce images that give a realistic impression of how deep-sky objects might look if they were bright enough to be seen in colour. Full colour images, also known as "broadband" or"RGB," include all of the colours of visible light but, just like the human [...]

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Using Deconvolution to Reveal Detail in Deep-Sky Images

Ron Brecher — Fri, 13 Jun 2014 18:29:22 +0000

Using Deconvolution to Reveal Detail in Deep-Sky Images June 13, 2014 INTRODUCTION Turbulence in the atmosphere and imperfections in optics cause blurring of details in astronomical images. The “true” image is said to be “convolved” with these unwanted effects. Deconvolution is the process of removing the blurring to enhance the amount of detail that can [...]

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Deep-Sky Image Processing

Ron Brecher — Thu, 01 May 2014 13:40:31 +0000

Deep-Sky Image Processing May 1, 2014 INTRODUCTION: PixInsight (PI), Photoshop, MaximDL and ImagesPlus are examples of software that provides amateur astronomers with a way to turn digital image data into visual art. These programs are very powerful with vast capabilities, and it can be hard to know which processing steps to use and when to [...]

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Deep Sky Imaging In Moonlight

Ron Brecher — Sun, 23 Mar 2014 20:31:38 +0000

Deep Sky Astrophotography in Moonlight March 23, 2014 The Moon is full about every four weeks. That’s a given, like snow in winter where I live. Within about a week either side of full, the Moon floods the night sky with reflected sunlight. This can be, among other things, beautiful, romantic, eerie, tranquil or even [...]

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