Black Hills Astronomical Society Meetings and Activities
Meetings are held on the dates listed below (third Mondays, September through May) starting at 7:00 p.m.
at the Journey Museum, 222 New York Street.
and Star Parties are held on selected Friday evenings at the Hidden Valley Observatory
starting at dusk (about 9 PM in the summer, 7 PM in the fall) unless the sky is cloudy.  Specific dates are listed below
This page last updated

Our regular meetings are held at 7 p.m. at the Journey Museum on 3rd Mondays each month in September through May, and usually begin with a program of interest to the general public and the members.  Following the program, we hold our business meeting at which interested members of the public are welcome.

2018 Meeting Dates and Programs at 7 p.m. (except as noted)

June through August - Star Party Workshops are offered for free to the public on selected Friday nights.

Jan 15 - George Gladfelter - "What Time Is It?"

Feb 19 - CANCELLED due to weather

Mar 19 - Lily Zahor, Solar System Ambassador - Water, at Home and Beyond

Studying water at home on Earth, a global water cycle, and looking beyond at water in the interstellar medium.

Apr 16 - Arjun Ayyangar, Solar System Ambassador - The InSight Mission to Mars

InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) is a NASA Discovery Program mission that will place a single geophysical lander on Mars to study its deep interior.

May 21 - Professor Travis Kowalski - The Eclipse Cycle

June-August Star Parties - June 8 & 22; July 20; August 3 & 17 - starting just after sunset.

    See for more information.

Sep 17 - Keith Sherburn - NOAA Meterologist - Space Weather and Our Changing Skies

Space weather has many potential impacts on our climate and daily lives. This talk provides an overview of space weather phenomena, how they are forecast by the Space Weather Prediction Center, and how they could influence our lives in the present and future.

Oct 15 - Tom Durkin, SD Space Grant Consortium - By Jove, It's Juno

Satellite mission to find the origin and evolution of Jupiter.

Nov 19 - George Gladfelter - What's Up There?  Lots, but the media are rife with hype.

2019 Meeting Dates and Programs at 7 p.m. (except as noted)

Jan 21 - Craig Howe - Director, Center for American Indian Research and Native Studies - Explorations of the Lakota Universe

Beginning over 200 years ago, traditional Lakota pictorial calendars, called "winter counts", recorded celestial events such as eclipses, comet sightings, and meteor showers that were seen in the Northern Plains skies. The dozens of diagrammatic drawings of these events are evidence that Lakota ancestors observed the night sky, and provide engaging origin points for this presentation to explore Lakota cosmology and star knowledge.

Feb 18 - TBA

Mar 18 - Frank Belinskey - The Jovian System, Part 1: Jupiter's Properties, Atmosphere, and Environment

Apr 15 - TBA

May 20 - Frank Belinskey - The Jovian System, Part 2.


"Star Parties" and Other Events


Our Star Party Workshops are held on scheduled Friday evenings in the summer at the Hidden Valley Observatory starting at dusk unless the sky is cloudy or the moon is too near to full.  There is no charge for these public events, but donations are welcome.

All observing sessions are always contingent on the weather.  Click on the following link to check seeing conditions for the next 30 hours or so: Hidden Valley Observatory "Clear Sky Clock"

For directions to the Hidden Valley Observatory click here.

For more information on our workshops, and observing session etiquette click here.

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