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The Basics of Stargazing

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Glossary


Important notices



In a dark place, our pupils dilate. A person will feel discomfort and lost his dark adaptation if a strong light shines on his eyes suddenly. Photos of wispy nebulae and galaxies can only be taken with extended exposure. Not only flashlight will not help, it will become a nuisance.

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Red light is less irritating to the eyes and helps to preserve our night vision. A red torch can be prepared easily by wrapping a sheet of red cellophane, cloth or even a plastic bag over an ordinary torch.

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Since flames are bright and the hot air around causes the image to shiver, the surface details of the celestial body cannot be resolved when a fire is around. Use a warm pack or put on more clothes to keep warm.

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