Clouds can dramatically alter your astrophotography results beyond just hiding stars. Here's how different cloud layers impact your images:
- Exposure Time: Cloud cover dims starlight, often forcing longer exposures. But longer exposures can increase noise and blur.
- Star Sharpness: Clouds scatter light, making stars look fuzzy or diffused instead of crisp points.
- Light Pollution Amplification: Clouds reflect artificial ground light, brightening the sky and drowning out faint stars.
High clouds might soften star details but still allow shooting, while mid and low clouds often block stars completely. Knowing this helps you adjust your camera settings or decide whether to shoot at all.