Philip Denyer

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Viewing 9 posts - 1 through 9 (of 9 total)
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  • in reply to: Comet Halley #620564
    Philip Denyer
    Participant

    Good to know it is beginning to return. I didnt see Halley's comet in 1986 so I promised myself I will see it on its next return. However, I will need to reach the age of 94.

    in reply to: Opticron 11×80 binoculars – Free if collected #620497
    Philip Denyer
    Participant

    Andy
    Would you prefer if the binoculars go to an organisation or astro club for example? Otherwise, I would be interested in the binoculars which I will be using for personal and outreach use. If so I will be able to collect at the Christmas meeting.
    Phil

    in reply to: Mars Occultation #614523
    Philip Denyer
    Participant

    Hello Giovanni
    I took an AVI of the disappearance which has accurate GPS time inserted onto the frames, if this helps. I have attached an image of first contact, predicted for 5h 0m 10s at my location. The image is mono and unedited.
    I will try and improve my images and send the requested details to Richard.
    Regards Phil

    in reply to: Asteroid timing accuracy #613341
    Philip Denyer
    Participant

    Paul, the link appears to be missing a 3 at the end. I believe this is the correct format https://iawn.net/obscamp/2005LW3

    in reply to: Christmas Meeting #581750
    Philip Denyer
    Participant

    I would have to agree with your comments regarding the lighting and would have preffered them to be dimmed during the presentations.

    in reply to: Christmas Meeting #581746
    Philip Denyer
    Participant

    Very good pair of talks plus an entertaining Sky Notes. I got the distinct impression that both speakers gained some valuable feedback and insights from the questions and discussion at the end of their talks.

    in reply to: Roll-off observatory runners/wheels. #579805
    Philip Denyer
    Participant

    Do you mean the weight of the roof? If so, the two halves are not too heavy, they are constructed from folded angle iron and covered with thin plastic coated steel cladding sheet. When we moved into our house there was a ready made concrete base. The previous owner took the original shed with him. So I basically started building a new shed entirely out of metal.

    in reply to: Roll-off observatory runners/wheels. #579800
    Philip Denyer
    Participant

    Because of myself being a sheet metal worker I set about building my own roll off roof observatory from metal. Lack of space for the roll off caused me to make the roof in two halves. The outer half rolls onto the lower half and they both roll away. I felt that using castors, for example, on both halves would produce excessive gaps. So to keep the roof sections as low profile as possible I made two channels from 2mm thick galvanised steel, the sides about 12mm high and the inside width about 25mm. I then made eight blocks of metal that would run in the channel. They  were drilled with a hole which would accept a steel ball bearing. The blocks were fixed to the corners of each roof. So basically the roof runs on captured steel ball bearings which produces minimal gap. Because the roof is an apex style and I have two runners on each side it can bind a little bit but a touch of grease can help. So far it has served me for many years without trouble. The channel shows little sign of wear but I recently changed the ball bearings which helped it run smoother.

    in reply to: The BAA Christmas Quiz 2016 #577771
    Philip Denyer
    Participant

    Only 15 for me, I struggled with Instruments as well. A good set of balanced questions.

Viewing 9 posts - 1 through 9 (of 9 total)