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  • astroshot
    Participant

    Hi All,
    My name’s Michael and I’m living in Co. Kildare (originally from Kerry). My main interest lies in astrophotography.
    It’s great to see such an active place here for photographers to share their work and develop their skills. At the moment I’m particularly interested in improving my skills in the general presentaion of my astro images (framing, website etc).
    Looking forward to chatting with you all.

    jb7
    Participant

    Hello Michael-
    welcome to the site-

    Interesting website you’ve got there-
    and looks like a cosy observatory too-

    I don’t know anything about Astrophotography,
    but I’m looking forward to knowing more soon-

    Here’s one I noticed from last year-
    taken by a Frenchman on kit not unlike yours-

    joseph

    Larger version here- http://hoffmann.stanford.edu/photos/Interesting/slides/iss_shuttle.html

    GCP
    Participant

    Michael, welcome aboard. You will yourself spending a lot of time here like us all. Enjoy.

    Mark
    Keymaster

    Welcome Michael,

    Will be great to see some of your work on here. Its a very interesting photographic genre you’re into.
    I’m sure others will find it equally as interesting.

    thanks for joining :)

    Rob
    Member

    Welcome Michael. Very interesting field and looking forward
    to seeing you post some work here…

    Rob.

    RavenAsh
    Member

    Welcome to the site Michael.
    Looking forward to seeing your work, interesting stuff. :)

    bingbongbiddley
    Participant

    Hi Michael. Hope you enjoy the site.

    astroshot
    Participant

    Many thanks everyonre for the warm welcome. Much appreciated.
    Joseph: That’s a superb image alright. Not only does it require good quality optical and imaging equipment, it also requies the observer to be in a very specific place on the earth relative to the satellite. TOp motch stuff.

    jb7
    Participant

    astroshot wrote:

    Not only does it require good quality optical and imaging equipment, it also requies the observer to be in a very specific place on the earth relative to the satellite.

    To say nothing of timing-
    I can’t remember exactly,
    but the transit took about a second, I think-

    I don’t suppose shutter speed was a problem though-

    j

    astroshot
    Participant

    I reckon he would have used a webcam or similar. Colour ccd cameras are availabe now which can capture images at 60 frames per second. With the speed the ISS would be travelling at, he is certainly loking at millisecond-type exposure. To get that level of detail on the sun, it most likely required a mosaic of many images to capture the entire disc.
    An incredible image.

    jb7
    Participant

    I think he used a Canon-
    not sure of the model-

    There were multiple exposures,
    though again, not sure of, can’t remember the details-

    j

    Edit-

    Image of the solar transit of the International Space Station (ISS) and Space Shuttle Atlantis (50 minutes after undocking from the ISS, before return to Earth), taken from the area of Mamers (Normandie, France) on september 17th 2006 at 13h 38min 50s UT.
    Takahashi TOA-150 refractor (diameter 150mm, final focal 2300mm), Baader helioscope and Canon 5D. Exposure of 1/8000s at 50 ISO, extracted from a series of 14 images (3 images/s) started 2s before the predicted time.

    Transit forecast (place, time…) calculated by http://www.calsky.com.
    Transit duration: 0,6s. Transit band width on Earth: 7.4 km. ISS distance to observer: 550 km. Speed: 7.4km/s. ISS size: 73m. Distance between ISS and Atlantis: 200m.

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