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Multiple ISS Transits - July 20/21st

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Author Topic: Multiple ISS Transits - July 20/21st  (Read 563 times)
Martin Mc Kenna
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Maghera, N. Ireland

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« on: July 22, 2008, 02:43:45 pm »

Roman, the exposure was 25 seconds at ISO400 with a 28mm lens at F/4. Unfortunately I can't do much about the noise as my camera tends to show it in an obvious fashion from ISO 400 upwards. I have ISO 3200 but I would never use it. I must try out the trial versions of the latest software which can remove noise from digital images. What did surprise me was the colour. On most occasions I need to adjust the levels to remove light pollution but on this night I just left it alone. Other than a weak unsharp mask and a few clicks of the contrast the images are untouched.

Brian, I could see Aldebaran on that night very clearly and was thinking the exact same thing. Orion will be hunting through the great eastern star fields in the very near future, and when that happens, we will have dark skies and meteor showers to contend with.
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