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Author
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Topic: Star trails: Composite photography from ISS
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Robert Pearlman
Editor Posts: 42981
From: Houston, TX
Registered: Nov 1999
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posted 05-17-2012 09:10 AM
   
These are composites of a series of images photographed from a mounted camera on the International Space Station, from approximately 240 miles above Earth. Expedition 31 flight engineer Don Pettit shared the photographic techniques used to achieve the images: My star trail images are made by taking a time exposure of about 10 to 15 minutes. However, with modern digital cameras, 30 seconds is about the longest exposure possible, due to electronic detector noise effectively snowing out the image. To achieve the longer exposures I do what many amateur astronomers do. I take multiple 30-second exposures, then 'stack' them using imaging software, thus producing the longer exposure. A total of 18 images photographed by the astronaut-monitored stationary camera were combined to create this composite:  A total of 46 images photographed by the astronaut-monitored stationary camera in the Cupola were combined to create this composite:  A total of 47 images photographed by the astronaut-monitored stationary camera were combined to create this composite:  |
Jurg Bolli
Member Posts: 977
From: Albuquerque, NM
Registered: Nov 2000
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posted 05-17-2012 05:50 PM
These are fascinating. But I prefer regular images that show us what it looks like up there. |
mikepf
Member Posts: 441
From: San Jose, California, USA
Registered: Mar 2002
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posted 05-17-2012 06:24 PM
It looks like they've engaged the warp drive. |
RocketmanRob
Member Posts: 268
From: New York City USA
Registered: Mar 2005
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posted 05-19-2012 07:01 PM
This reminds me of some fantastic video footage that Ron Garan showed at a recent gathering at the Cradle of Aviation museum. It showed time lapsed video of the Earth from ISS to the theme of the most recent Star Trek movie. Worth a look if you can find it. Unfortunately, I haven't been able to find it.
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328KF
Member Posts: 1234
From:
Registered: Apr 2008
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posted 05-19-2012 10:01 PM
Here's a link to that video. |
RocketmanRob
Member Posts: 268
From: New York City USA
Registered: Mar 2005
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posted 05-20-2012 09:25 PM
That's it. Thanks for the link! |
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