Laser sights used in astronomy

Repels crows in amateur astronomy - When using a high powered laser pointer to look at stars, a star pen is often used for a long time to avoid interfering with other astronomers' photography. It should be noted that no reference should be made to. In crowded public places - you should stop using the laser pointer to avoid hurting others. In addition, some high-power laser Pointers may be subjected to considerable heat and cannot be used continuously for long periods of time, especially since they are temperature-sensitive solid-state lasers. Since the advent of laser Pointers, there have been many pranks and accidents caused by misuse of laser Pointers, which have caused serious social problems. Yeah, what's the point of laser pointer distance? The laser pointer aims its power at the eyes of people and animals, and shines the laser at planes, airships, cars and so on. In many countries, these powerful laser Pointers are also used with sights like pistols, so I figured a person being irradiated in the dark would be shot by pistol robbers, so I defended myself with my pistol against the source.