Astronomy [at] PCC

Our Solar System

Reminder for Tuesday, November 24

There will be no class this Tuesday, November 24.  You have been given this class time to research your speech/paper topic at either the PCC Library or the UA Libraries.  Do not waste this time because you will not be given any other opportunity to go to the library during class time.

Tagged: Announcements //

Speech/Paper Criteria

The Speech/Paper Criteria link is now active under Links > Class Resources.  You are expected to download, print, and read the guidelines.  They will be strictly adhered to in grading your paper and speech (200 pts possible).

Tagged: Announcements //


Speech Topics Due

Speech Topics Due Thursday, November 12, 2009 at Noon

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Reminder- Geo Lab Practical

There will be a geology lab practical (lab exam) this Thursday, November 5, 2009.  The practical will start at 6 pm sharp.

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Portfolio #2 Due Date- Nov. 19

Portfolio #2 Due Date is Nov. 19

Tagged: Announcements //

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  • NASA Pic of the Day

    Composite of a Series of Images Taken From Space Aboard the Station

     
    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. Space station hardware in the foreground includes the Mini-Research Module (MRM1, center) and a Russian Progress vehicle docked to the Pirs Docking Compartment (right). Expedition 31 Flight Engineer Don Pettit said of 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 47 images photographed by the astronaut-monitored stationary camera were combined to create this composite. Image Credit: NASA
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