The green laser used to draw attention not only celestial objects but also to focus the telescope to the star that you want to see.
A laser pointer 5mW of power, emits a beam of light at a wavelength of 532 nanometers. During the night it is visible over 2 miles. Since the power can vary from one laser to another should take special care in handling because it can damage the retina.
It is recommended that this device is purchased through a reputable dealer and should be sure that does not emit Infra-red.
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