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IC 1805 The Heart Nebula, comparison of 3 nm and 7 nm H-alpha filters, Eric Coles (coles44)

IC 1805 The Heart Nebula, comparison of 3 nm and 7 nm H-alpha filters

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Description

This is an animation between two H-alpha images of the Heart Nebula. After you download the animation, the images change every five seconds. The first image is with the Astrodon 3 nm Ha filter and the second the Baader 7 nm Ha filter. You can see that the 3 nm image has fewer and tighter stars, more nebulosity and a broader histogram. The images were cropped slightly to adjust for the differences between the positioning of the nebula between the two sessions.

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