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IMPORTANT ANNOUNCEMENTS:

  • A partial solar eclipse is coming to Tucson!! It will cover almost all of the United States, as well as most of the world. Annularity (the sun creating a ring of fire around the moon) covers a patch of the United States from California to Texas (including Northern Arizona and New Mexico), and some other countries: for more information, see the wikipedia page on this eclipse.
    http://en.wikipedia.org/wiki/Solar_eclipse_of_May_20,_2012
    In Tucson, the partial eclipse will begin at 5:31pm, maximum obscuration (which, in Tucson, has the moon obscuring 81% of the sun) will occur at 6:40pm, and it will end with sunset at 7:18pm. Many Astronomers will also be at the Grand Canyon, and the times for there are as follows: begins at 5:25pm, maximum obscuration (which includes Annularity at 87%) at 6:35pm, and ending with sunset at 7:32pm.There will be many events in Tucson held by Astronomical organizations in the area, some of which will be on the University of Arizona campus. Please see the links below for information about specific events:

  • Our next Sabino Canyon Star Party is set for Saturday, June 2nd from 5:30-9:30pm!
     
  • Venus will be transiting the Sun on Tuesday, June 5! Every 105 years, Venus will transit (appear to cross in front of the sun) twice in an eight-year period. Venus transited in 2004, and will do so again on June 5; after that, there will not be another transit until 2117! This is truly a once-in-a-lifetime event, so we encourage you to attend an event and watch the transit. Events will be held all over Tucson; please see the links below for more information.
     
  • If you are not in Tucson, check out the Night Sky Network website to find an event near you: http://nightsky.jpl.nasa.gov/

    If you do not wish to attend an event, but still want to watch the transit, the eclipse viewing glasses mentioned above can also be used. Venus will be quite small, though, and so a telescope with a solar filter or a pinhole camera are strongly recommended. Again, DO NOT EVER LOOK DIRECTLY AT THE SUN WITHOUT THE PROPER FILTERS!!!

    Welcome to the University of Arizona Astronomy Club website! Our goal is to inspire and assist anybody with a passion or interest in astronomy and science. We provide opportunities to work on astronomy projects with other students and astronomers who care deeply about astronomy education.

    We hold weekly meetings on Monday from 4-5pm in Steward Observatory Room N305. We have two offices (T103 and T104) in the trailer behind Steward Observatory. To join the club, show up to our meetings or join in on our projects or events! Semester dues are $10 which goes toward all of the projects and activities in which we participate. Please peruse our website for much more information about our club. If you have any questions, please use the form on the Contact page!

    If you’re in Phoenix near Arizona State University, join our friends at the ASU Astronomy Club!

    Join our group on Facebook!Join our group on Facebook! Visit our YouTube channel!UAAstroClub YouTube Channel
    Map to Steward Observatory:
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Katie carving an observatory At sunset Africa Sunset

NASA Image 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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