ISS Triple Flyby
Taken by mark humpage on June 10, 2012 @
Lutterworth, UK
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Details:
Multiple ISS flyby opportunities are now here in UK. There were 4 actual flybys this evening at 2207, 2343, 0119 & 0256 hrs, however the first was clouded out. This shot shows each of the last 3 flybys in one singe composite image. This is how I captured the shot. Firstly I consulted the excellent GoSatWatch app for the exact times of each flyby. I then calculated the best direction to point the camera in order to view all 3 flybys (This was easy since the ISS more or less approached from West and finished East for all. I therefore bisected and pointed South). I set the camera (Olympus E5) on a tripod with a good wide angle lens (8mm fisheye). Set to Manual mode with an exposure time of 15s and wide open aperture at F3.5, ISO 500 I waited till the first flyby (2343hrs) and forced the camera to shoot continuously (using a remote cable). I added a few bursts of flash just before the first flyby to light up the garden and then left the camera running all night. The following morning I extracted all the images and imported those from each flyby time into stacking software (StarStax) which then produced the final composite of all 3 flybys....Simples :-) The first flyby was exceptionally bright and a shame the cloud rolled in during the second at 0119 hrs which faded the ISS trail.
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