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  • 26 Mar 2024 5:17 PM | Anonymous member

    ALCON 2024 tickets and room reservations are now open for purchase and booking!

    Purchase ALCON Tickets HERE

    Room reservations are now open for the special ALCON rate at the Overland Park Doubletree Inn. Book now at

    Highlights include:

    • Gottlieb Planetarium at Union Station in downtown Kansas City, Mo., will provide a private presentation in their facility.
    • Linda Hall Library, a world-famous science and technology research library, will feature guest speaker David Levy and a chance to visit the library’s rare book room, featuring such books as two of the few extant copies of Galileo’s Siderius Nuncius (1610).
    • Powell Observatory for a presentation by ASKC member and astronomy student Rachel Cionitti and an evening of stargazing with the 30-inch Ruisinger Telescope (weather permitting). The observatory visit will be preceded by a stop at the beautiful Overland Park Arboretum for a StarBQ dinner featuring a local Kansas City-style BBQ.
    • The Banquet features a local jazz band, and Brown University professor of physics and astronomy and jazz musician Stephon Alexander will discuss his latest book, The Jazz of Physics.

    For an up-to-date list of the speaker lineup, please check here:


    DoubleTree by Hilton Kansas City - Overland Park, 66210

    The beautiful Overland Park Arboretum & Botanical Gardens is the site of the Traditional Friday night Star-B-Que Zarda Hickory Pit Bar-B-Q, which has been serving its special offerings for almost 50 years in the Kansas City area. They are also strong community partners with many Kansas City area charities and non-profits such as Big Brothers Big Sisters Kansas City, The America Royal, and The Bishop Sullivan Center, which is committed to helping people cope with financial hardships.

  • 20 Mar 2024 12:30 PM | Anonymous member (Administrator)

    The Great American Eclipse of 2024 is just around the corner. To accommodate those who would like to see the eclipse but can’t or won’t be traveling to the path of totality, DAS is planning to hold a special partial solar eclipse observing event at DU’s historic Chamberlin Observatory on Monday, April 8, weather permitting. We need volunteers to set up and operate solar telescopes and binoculars on the park lawn for public observation, and at least one volunteer to help sell eclipse glasses (while supplies last).

    What: Partial solar eclipse observing event

    When: Monday, April 8, 2024, 11:00 a.m. to 2:00 p.m. MT

    Where: Chamberlin Observatory, 2930 E. Warren Ave., Denver

    If you’re able to help with this event, plan on showing up between about 10:00 a.m. and 10:30 a.m. to set up. We recommend that volunteers bring and wear sunscreen and a hat. The observatory will not be open for tours, but will be open for restroom access.

    Please let Mark Christman ( know if you would like to be among the volunteers.

  • 12 Mar 2024 12:46 PM | Anonymous member (Administrator)

    Denver Astronomical Society Eclipse Glasses Bundle

    We have quite a few eclipse glasses left and really need your help* in moving through some of them.

    The DAS Eclipse Bundle includes one pair of ISO12312-2-certified solar viewing glasses and a commemorative 2023/2024 Great North American Eclipse Tour sticker.

    Our eclipse glasses are certified to meet all safety standards for direct solar viewing and are produced in the USA by American Paper Optics.

    Glasses and the free commemorative sticker can be ordered through through our special Eclipse Glasses Store.

    If you've got friends or family anywhere along the eclipse, especially within the path of totality, these would make a great gift!

    *Each purchase helps us a great deal to continue our mission of educating the public about all things astronomy, maintaining the Chamberlin Observatory, the Kline-Dodge Dark Sky Site, and much more!

  • 28 Feb 2024 2:39 PM | Anonymous member (Administrator)

    Registration for our annual Spring Banquet is still open in the Member Portal, but time is running out!

    Sign up now (see below); the deadline is Thursday, February 29th.

    When: Sunday, March 10, 2024, 5:30 p.m. to 10:00 p.m.

    Where: Embassy Suites DTC, 10250 E Costilla Ave, Centennial, CO 80112


    This year's Spring Banquet features:

    • Social/Cocktail time - Cash bar at 5:30 p.m.
    • Awards & New Officer & Trustee Introductions at 6:20 p.m.
    • Banquet-style dinner (see below) - at 7:00 p.m.
    • Astronomy Presentation by Dr. Jordi Casanova - at 8:00 p.m.
    • More social time - until 10:00 p.m. 

    Banquet Style Dinner


    Salad - Spring Mix, Cucumbers, Tomatoes, Carrots, Herbed Croutons served with Ranch and Balsamic Dressing

    Entrees (choice of one):

    * Chicken Cordon Bleu - Chicken Breast stuffed with Ham & Cheese topped with Garlic Parmesan Sauce

    * Lemon Pepper Grilled Salmon with Roasted Asparagus and Wild Rice Pilaf

    * Pasta Primavera (Vegetarian) Linguini with Seasonal Vegetables, Tomatoes, and Lemon Thyme Cream Sauce


    Meal price:
    $35 per person regardless of entree.

    Note: Please email if you need your meal to be gluten-free.

    Here's a link to the registration page:

    Spring Banquet Presentation

    Dr. Jordi Casanova,
    Regis University

    Presentation Title:
    "The Classical Nova Concert"

    Our Speaker:
    Dr. Jordi Casanova earned his PhD from the Polytechnic University of Catalonia and is an assistant professor at Regis University. Previously, he has worked at North Carolina State University and Oak Ridge National Laboratory as a post-doctoral researcher. Here in Colorado, he has taught at the Colorado Community College System and at the Metropolitan State University of Denver. He is a theoretical astrophysicist interested in deciphering how stars explode and die.


    Classical novae are explosive phenomena that take place in stellar binary systems. They are powered by mass transfer from a low-mass, main-sequence star onto a white dwarf. During these events, material enriched in CNO (carbon-nitrogen-oxygen) and other intermediate-mass elements will be ejected into the interstellar medium. The origin of the metallicity enhancement observed in high-resolution spectra of ejected nova shells has, however, remained unexplained for almost half a century.

    Dr. Casanova will present multi-dimensional simulations of classical novae with the FLASH code (an adaptive mesh hydrodynamics code for modeling astrophysical thermonuclear flashes) and discuss the role of Kelvin-Helmholtz instabilities as a natural mechanism for self-enrichment of the accreted envelope with core material. The result is a metallicity enhancement that is consistent with the observed values.

  • 7 Feb 2024 1:37 PM | Anonymous member (Administrator)

    Reminder: Voting is now OPEN for Executive Board Officers and Trustees

    This is your opportunity to select who will play a leadership role in Denver Astronomical Society, one of the largest astronomy clubs in the U.S. We urge you to participate!

    Your ballot invitation has been emailed to the email address you used to register your account with DAS.

    Per our Bylaws (, Executive Board Officers (President, Vice President, Secretary, and Treasurer) and Trustees (eight positions) serve one-year terms.

    For this year's nominations and election, Greg Fogarty is our Election Chairperson. If you have any questions, please email

    Here are some key dates to remember:

    February 4, 2024 - Nominations close at midnight.
    February 5, 2024 - Electronic voting begins at 9:00 p.m.

    February 12, 2024 - Voting will end during our Annual Business Meeting; the results will be announced after the meeting's presentation.

    March 24, 2024 - Newly-elected Officers and Trustees will be seated during our Spring Banquet.

  • 22 Apr 2022 6:42 PM | Deleted user

    DAS General Meeting
    April 22, 2022
    with Dr. Charles Nick Arge

  • 26 Mar 2022 4:40 PM | Deleted user

    DAS In-Reach March 26, 2022

    "Women in Space and Astronomy" presented by Sabrina DeSoto

  • 18 Feb 2022 11:21 AM | President (Administrator)

    Zoom Link for Annual Meeting & Election:


       New Members
    Tim Pimentel:
       Online Voting Advisory - until 8:30 p.m.
    John Bickel:
       Astronomy Minute
    Mehmet Unsoy:
       In-Reach Certificate Program for Attendees
       In-Reach on Feb 26, Intro to Solar Observing
    Announcement of Past & Current Membership Figures
    Treasurer Jon Mesick:
       Recap of 2021 Financial Statement
    VP July Candia:
       Introduction of tonight's speaker
    Tim Pimentel:
       Election Results
    Observing Reports

  • 7 Feb 2022 5:17 PM | President (Administrator)

    Here is the link for the February 7 In-Reach with Dave Tondreau, "The Absolute Beginner's Guide To The Moon"

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