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.


There will be no Sabino Canyon Star Party for the month of November. The monthly star party at this location will resume in the future; further updates will be posted as they become relevant.

Fall 2014 meetings will be held on Mondays from 5:00 PM to approximately 5:45 PM in Steward Observatory room N305, beginning on September 8, 2014. Please see the Meeting Notes page for meeting notes.

To join the club, we encourage you to show up to our meetings and 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.

Check out the special session organized by the University of Arizona Astronomy Club at the 223rd American Astronomical Society meeting in Washington, D.C.: AAS 223 Session 159 Video or search YouTube for “uaastroclub” and “AAS 223 Session 159″.


Megan: Tuesdays from 11:00 AM to 12:00 PM and from 1:00 PM to 2:00 PM
Samantha: Mondays from 4:00 PM to 5:00 PM and Fridays from 2:00 PM to 3:00 PM
Carmen: Wednesdays from 12:00 PM to 2:00 PM
Ali: Tuesdays from 3:30 PM to 4:30 PM and Fridays from 3:00 PM to 4:00 PM
Matthew: Mondays from 2:30 PM to 4:30 PM
Erica: TBD

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

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At sunset Lindsay carving the world 2013scrapbookpage8 Having fun in the gym

NASA Image of the Day

Specular Spectacular

This near-infrared, color mosaic from NASA's Cassini spacecraft shows the sun glinting off of Titan's north polar seas. While Cassini has captured, separately, views of the polar seas (see PIA17470) and the sun glinting off of them (see PIA12481 and PIA18433) in the past, this is the first time both have been seen together in the same view. The sunglint, also called a specular reflection, is the bright area near the 11 o'clock position at upper left. This mirror-like reflection, known as the specular point, is in the south of Titan's largest sea, Kraken Mare, just north of an island archipelago separating two separate parts of the sea. This particular sunglint was so bright as to saturate the detector of Cassini's Visual and Infrared Mapping Spectrometer (VIMS) instrument, which captures the view. It is also the sunglint seen with the highest observation elevation so far -- the sun was a full 40 degrees above the horizon as seen from Kraken Mare at this time -- much higher than the 22 degrees seen in PIA18433. Because it was so bright, this glint was visible through the haze at much lower wavelengths than before, down to 1.3 microns. The southern portion of Kraken Mare (the area surrounding the specular feature toward upper left) displays a "bathtub ring" -- a bright margin of evaporate deposits -- which indicates that the sea was larger at some point in the past and has become smaller due to evaporation. The deposits are material left behind after the methane & ethane liquid evaporates, somewhat akin to the saline crust on a salt flat. The highest resolution data from this flyby -- the area seen immediately to the right of the sunglint -- cover the labyrinth of channels that connect Kraken Mare to another large sea, Ligeia Mare. Ligeia Mare itself is partially covered in its northern reaches by a bright, arrow-shaped complex of clouds. The clouds are made of liquid methane droplets, and could be actively refilling the lakes with rainfall. The view was acquired during Cassini's August 21, 2014, flyby of Titan, also referred to as "T104" by the Cassini team. The view contains real color information, although it is not the natural color the human eye would see. Here, red in the image corresponds to 5.0 microns, green to 2.0 microns, and blue to 1.3 microns. These wavelengths correspond to atmospheric windows through which Titan's surface is visible. The unaided human eye would see nothing but haze, as in PIA12528. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. JPL, a division of the California Institute of Technology, Pasadena, manages the mission for NASA's Science Mission Directorate in Washington. The VIMS team is based at the University of Arizona in Tucson. More information about Cassini is available at http://www.nasa.gov/cassini and http://saturn.jpl.nasa.gov. Image Credit: NASA/JPL-Caltech/University of Arizona/University of Idaho
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