PHD2 Guiding: What is RMS Error and How Does it Affect Your Astrophotography Images?

Опубликовано: 16 Июль 2026
на канале: Nerdy Beardo
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Hey Beardos! In this tutorial we’re going to cover one part of PHD2 guiding which is the RMS Error, what it means and how it can affect your astrophotography images. The RMS error tells you how much PHD2 is making corrections in your mount. With longer focal length telescopes, you will see that the total RMS error matters significantly more, so it’s especially important to understand to get more accurate tracking.

Are you a beginner at astrophotography or looking to improve your game? Check out my astrophotography fundamentals playlist:
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