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    Default Visibility of Venus when it is close to the sun



    I work with Babylonian cuneiform tablets with celestial observations made by the eyes. I have read that when Venus is closer to the sun than 10 degrees it cannot be seen because the rays of the sun prevent it. However, on several tablets the position of Venus is given when it, according to my astro-program, should be invisible. My question is whether it is possible that some kind of dust or dark matter could cover the sun, with the effect that a trained astrologer with a good eyesight who knew exactly were Venus was in the sky could get a glimpse of the planet under such special circumstances also when it was closer to the sun than 10 degrees.

    Materne

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    Hi Materne,

    Welcome to Astronomy Forum.
    Use one eye to observe with and block the Sun with a building edge. Be careful when trying to do this so that you do NOT stare at the sun. A clipboard held near your face may also help in addition to using a building. If the sky is clear the observation is possible. Dust and aerosols will be illuminated by the Sun. Once this background sky brightness approaches the brightness of Venus then the planet will become undetectable. Better results will be obtained when the Sun and Venus are high overhead.

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    Hi materne , welcome aboard .
    16in Night sky
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    F4.5 , 90mm refractor 500mm FL , 7in
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    classic Big-mac , Meade eye pieces with a few odd balls thrown in ...
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    Please stand in front of one ...

 

 

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