Image: Composite of a series of images taken from space aboard the space station

Composite of a series of images taken from space aboard the space station

(Phys.org) -- This is a composite of a series of images photographed from a mounted camera on the Earth-orbiting International Space Station, from approximately 240 miles above Earth.

Expedition 31 Don Pettit said of the about 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.


Explore further

Space Image: Earth observations

Provided by JPL/NASA
Citation: Image: Composite of a series of images taken from space aboard the space station (2012, May 18) retrieved 27 September 2020 from https://phys.org/news/2012-05-image-composite-series-images-space.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments