Green laser pointer used in astronomy

From the early beginning of first 5mW green laser pointer, various kinds of laser pointer have flooded into the laser diode market place. Large quality of manufacturers and distributors of laser pointers have made it quite difficult to find the best quality laser pointer at a reasonable price. How to separate good laser pointer from those of foggy ones? It is a big question that should be taken into consideration while choose a green laser pointer that will be used in astronomy.
Among all series of laser pointers, the green color laser crystal is the brightest one, thus it is the best choice for astronomy lovers and enthusiasts. Lower power green laser pointer has been enough for astronomy research, while you should pay much more attention to the laser diode. Little beam divergence is a necessity for astronomy laser pointer, and only good quality laser crystal can reach this goal. It is very important to choose a laser pointer with little beam divergence so that the laser can make researchers have a clear and easy definition of the target.
Good quality laser crystal is very important, which can not only help astronomers make an easy and quick aiming of targets, but well assured the long term of lifetime. A shoddy laser pointer might burn out within one week time or even shorter, and it is also very dangerous to be with such shoddy laser. Laser pointer with reliable quality would make sure of the long lifetime of about 5,000-8,000 hours.
The output power of green laser pointer should be decided by the atmosphere. Astronomy green laser pointer with low output power is suitable for researches of single person and good weather condition. Under bad weather conditions such as heavy fogs, seriously polluted environment, the bright beam of high power green laser pointer can easier scatter in atmosphere and can reach the celestial object in very short time.
Low price doesn’t mean a nice deal. So the laser pointer is. A good quality astronomy laser pointer at a reasonable price should be a good deal.