The Nature of Our Moon

Date: Saturday Feb 24th 2018 8:00pm

Soup etc. (included in price) from 7:30pm

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Location: National Trust Tea Room, Carding Mill Valley SY6 6JG

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The nature of the moon

Our moon was formed as a result of an enormous collision between two planetary objects. How do we know that?  What is it made from?It is responsible for the pattern of our tides, which arguably shortened the time for life on dry land to evolve. It's periodic rhythms  from new moon to full moon and back helped humanity to measure time. Countless myths, legends and beliefs abound.


In January, there will be a Blue Moon (second full moon in a month), whereas in February it will be a Black Moon (No full moon). The First Quarter moon was on 23rd February, and many people say this is the best time to observe the moon. The edge of the moon shadow (the Terminator) is a great place to see the craters and other features which stand out in bold relief. The moonlight isn’t too strong to make stars and constellations difficult to see.


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1493 woodcut of sun and moon with faces

Sun and Moon with faces (1493 woodcut).  The moon's depiction as male or female depended upon local cultures.

planetary Impact with earth

Photo Credit: NASA/JPL-Caltech.
planetary impact with earth creates debris that formed the earth

diagram showing the phases of the moon in relation to the position with the sun

Image Credit: NASA
diagram showing the phases of the moon in relation to the position with the sun

2 thoughts on “The Nature of Our Moon”

  1. Hi,

    Who will be giving the talk about the Moon on 24th Feb please, and will it be targeted at people with little prior knowledge of the subject?



    1. Hi Pete

      Pete Williamson is doing our talks again this year, following his successful series last year. Our aim is to attract people who are interested in astronomy, but have not much experience or knowledge. We do have a number of local enthusiasts too, which is useful as they help with Observing.

      At the beginning of last year’s series, 80% of attendees had never been to an astronomical meeting before and a number of them came to subsequent meetings.

      The venue is undergoing renovation at the moment and will have a larger capacity. That means fewer people will be disappointed.

      I hope this helps


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