How do people take photos of galaxies with 50 hours of exposure? How is it possible to aim at the same spot while earth is doing more that 2 rotations in that time?

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How do people take photos of galaxies with 50 hours of exposure? How is it possible to aim at the same spot while earth is doing more that 2 rotations in that time?

In: Technology

9 Answers

Anonymous 0 Comments

Hi 🙂

The stated hours are the combined time of multiple exposures, often during multiple nights.

Via software you can then “stack” multiple images, increasing details, reducing noise.

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