How important is dark adaptation, and how long does it take?

Dark adaptation is crucial for observing faint celestial objects and details in low-light conditions. It involves allowing the eyes to adjust to darkness, which can take anywhere from 20 to 30 minutes for significant improvement in sensitivity to dim light. Maintaining dark adaptation is essential during stargazing sessions, as exposure to bright lights can reset the process and hinder viewing capabilities. Using red light sources and avoiding unnecessary light pollution can help preserve dark adaptation.