Recent content by Paul3
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Astronomy and PGL III...
[ QUOTE ] Don't know about the eye adaptation of the night. [/ QUOTE ] In fact, this is very important in astronomy: the diameter of the pupil increases when there is not enough light. Higher this diameter, brighter the stars, nebulae, galaxies... But it needs 20 minutes under a darksky for...- Paul3
- Post #6
- Forum: Laser Pointer Forum
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Astronomy and PGL III...
First, sorry for my poor writing because I’m French. I owned a 4.5mW green laser pointer for astronomy: the beam in dark sky was clearly visible but not when there was the Moon, so I’ve planned to purchase a more powerful hand held laser. I saw that the PGL III has a heater so it can run 10...- Paul3
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- Replies: 9
- Forum: Laser Pointer Forum
