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Sunday, November 21, 2010


The ISS and Parallax, One More Time

After our attempt to use parallax to determine the height of an iridium flare, Dean Male and I tried to do it with an ISS pass, somewhat higher in the sky to fix some issues with the parallax calculations. I got the ISS as it was at its highest, but Deans firing mechanism had a meltdown and his shots might not be salvageable.

Oh well, there's next time.

The left image is the ISS above Iota Grus at 21:15:35, Canon IXUS, 400 ASA, 15 second exposure. The bottom image is the ISS passing the bright star Canopus a few minutes later

As always, click to embiggen.

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