Recent content by Abd Errahmane

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    Stargazing Will Reflector Telescope Work Without Eyepiece?

    please replay!
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    Stargazing Will Reflector Telescope Work Without Eyepiece?

    Able to industry 6inch reflector telescope,but I found that the image of the edges of the mini-optical example, if I looked at the moon I saw three Oqmra This note I did not use the eyepiece My question is: Will this form reflector when not using the eyepiece? Thank you very much
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    High School How can I make a telescope eyepiece

    can you explain by picturs (photos)
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    High School How can I make a telescope eyepiece

    how can i make a telescope eyepiece please help me !
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    Stargazing Where should the secondary mirror be placed in a concave mirror telescope?

    can you help me in the tube of telescope , can it be by plastique or keybord or fe
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    Stargazing Where should the secondary mirror be placed in a concave mirror telescope?

    thank you russ watters
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    Stargazing Where should the secondary mirror be placed in a concave mirror telescope?

    any replay
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    Undergrad How was Voyager 2 used to determine the orbits of Uranus and Neptune?

    thank you
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    Stargazing Where should the secondary mirror be placed in a concave mirror telescope?

    Any replay
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    Stargazing Where should the secondary mirror be placed in a concave mirror telescope?

    hello, I found a concave mirror telescope in my town I think that it is very good for making Newton telescope Estimated length of 20 cm I will make a telescope , but I have a problem , I do not know the place of the focus and the place of secondery mirror; after focus or before...