There are many amateur astronomers
in the word and in December they might be crazy because of Geminid Meteor Shower.
It is the biggest one of the following half year. The geminids move slowly. It
can be seen in December and usually peak around the morning of 14th. The shower
will be 120-160 meteors per hour under optimal conditions. Can you imagine how
much fun it will be to watch a meteor shower.
Amateur astronomers usually use the
telescopes and also equip a green laser pointer to point star or other heavenly
bodies because the visible beam of green lasers can reach far into the
atmosphere so that you can point at stars, constellation and galaxies exactly. The
best part is everyone around you can see exactly what you are pointing to
through the green beam. Other amateur astronomers may jealous of your easiness
while they are point with their fingers painstakingly.
Then what kind of lasers are
suitable for pointing star？The
first point is choosing the color. The wavelength decide the color. The 532nm
green laser is more suitable because it is the lightest color among the others.
Next one is power. The power from 5mw to 150mw is enough. Which one you choose
is depend on the weather and purpose. 5mw power is ok in starry sky and 150mw is
needed when it is cloudy. On the other hand is your purpose. If your single use
is pointing star then a 5mw laser is ok. Anything less would not have enough
power to be seen far enough. 5mw is low powered and safe. And you can also use
it to play with your pet, but forbidden to shoot to people or animals. While if
you want to use it to burn paper, cigarette, fur or something else, then maybe
you should choose the high powered laser and it can also be used to point star.
At the same time you also need a pair of laser safety goggle.
What's more, it is easy to
operation, with one button to switch on-off. For children, we have safe key.
Equip your telescope with a 532nm green laser pointer and star your fantasy astronomical travel.
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