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truhan

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  1. truhan
    according to this website https://www.saao.ac.za/~wpk/laser/2006MNASSA..65..80.pdf 15mW lasers are ideal for astronomy but that anything in between 7 and 30 mW will work Truhan
  2. truhan
    hi i am looking at getting a green laser for pointing out objects in the night sky what mW and wavelength should i look for are there anything else to look for ???
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