Category

CCD Imaging

Bad Image Examples

What counts for a “bad image” is a question often received. This lesson will provide examples of some bad images, describe what happened, and also point out some cases where these images may still be useful.

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Using GIMP For Color Images

This lesson explains how to use the free image manipulation software GIMP to transform and colorize astronomy images.

Exoplanets

This lesson will provide an overview of how to image an exoplanet. For the most up to date guidance, consult the excellent website: www.astrodennis.com. Dennis Conti has become one of the worlds top amateur exoplanet observers and educators. This lesson will rely on...

Seeing

In a continuing series on CCD Imaging, this lesson focuses on a concept called Seeing. In short, Seeing describes how clear your image is (ex. Star, planet, etc) when being viewed through the Earth’s atmosphere.

Earth’s Atmosphere

While creating some beautiful effects, the Earth’s Atmosphere is severely limiting from an Astronomical perspective. This lesson will outline some of those problem areas that must be considered.

Planning Your Image – Non-Moving Object

This lesson will take you through a thought process when setting up for an observation/imaging run for an object that is not moving through the sky. This will discuss topics that have been covered in previous lessons and therefore, will not spend a great amount of...

Image Reduction – Overview

Each science image is subject to mechanical imperfections. If these imperfections are not removed from each image, they will skew the data and provide erroneous measurements. This class will talk about the basics of Image Calibration. All images must be calibrated...

Airmass

As discussed in the lesson: The Earth’s Atmosphere, you learned that the atmosphere of our planet can impact imaging and science. This lesson further discusses Air Mass which is another way to describe how much of the Earth’s Atmosphere we are imaging an object...

Planning your Image – Moving Object

This lesson will take you through a thought process when setting up for an observation/imaging run for an object thatis moving through the sky. This will discuss topics that have been covered in previous lessons and therefore, will not spend a great amount oftime on...