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Welcome to Houston Astronomical Society

Fostering the science and art of astronomy through programs that serve our membership and the community. Founded in 1955, Houston Astronomical Society is an active community of enthusiastic amateur and professional astronomers with over 70 years of history in the Houston area. Through education and outreach, our programs promote science literacy and astronomy awareness. We meet via Zoom the first Friday of each month for the General Membership Meeting and the first Thursday of the month for the Novice Meeting. Membership has a variety of benefits, including access to a secure dark site west of Houston, special interest groups that focus on particular areas of astronomy, an active community outreach program, and much more. Joining is simple.

Video of HAS Main Meeting - Sept 5th, 2025 - “Europa Clipper – Exploring an Ocean World”

“Europa Clipper – Exploring an Ocean World”

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By: Dr. Walter Kiefer

The Europa Clipper is a space probe launched on October 14th, 2024, with Jupiter’s moon Europa as its destination. After receiving gravity assists from Mars and Earth, Europa Clipper will arrive at Jupiter in April 2030. The space probe will orbit the giant planet and perform multiple flybys of its most Europa, its fascinating moon.

Europa, one of the four “Galilean” moons of Jupiter is one of our Solar Systems most unique members. It’s surface is completely covered in ice. It is thought to have an iron core enclosed in silicate rocks, all covered by what is likely to be a subsurface ocean under the ice.  Europa is thought to be an Ocean World, and since life on Earth might well have fostered the development of life as we know it, there has been some thought that Europa’s ocean might have played as similar role.

The Europa Clipper space probe will perform a detailed study of the geology and internal structure of Europa, including characterization of the depth and composition of a likely subsurface ocean. The over-arching objective of this space mission is assessing whether the ocean might be able to support life.

In this talk, Dr. Kiefer will provide an overview of the Europa Clipper mission and its science objectives.

Speaker: Walter Kiefer is the Director of the Lunar and Planetary Institute in Houston and is a member of the Gravity and Radio Science team for NASA’s Europa Clipper mission.

 

To see the video, click Europa Clipper Mission/a>.

Video of HAS Novice Meeting - Sep 4th, 2025 7:00pm "Our Solar System"

" Our Solar System "

By: Chris Morisette

We’re going to give our home a little love and explore “Our Solar System" in this month's Novice presentation.  Some basic information will be covered, then we’ll take a fascinating tour using the “Eyes on the Solar System” model from NASA.  We’ll journey to and learn about each planet as well as a host of moons, asteroids, comets, and planetary missions.  The presentation will wrap up with some information to help you observe Saturn and Jupiter during their upcoming opposition(s), then we’ll view a gallery of “fun photos” showing our place in the Universe!

Speaker BioChris Morisette is HAS Novice Chairperson and an active member of the Houston Astronomical Society, North Houston Astronomy Club, and the Fort Bend Astronomy Clubs.  He is also a member of the University of Texas Astronomy Department Board of Visitors.  On clear Saturday nights you may find him volunteering at the George Observatory engaging with visitors and sharing his love of the night sky, or you may find him at the HAS dark site trying his hand at astrophotography.

To see the video, click Our Solar System.

"For Your Eyes Only" Observing Award

Have you heard about the Astronomical League's "FYEO" Observing Award?

This Observing Award will guide you through the best naked-eye targets in the sky. No telescope is required, actually you cannot use anything other than your eyes, hence the name "For Your Eyes Only". 

Here is a list of AL Observing Programs that have "eyes only" requirements.

    1. Alternate Constellation Observing Program (Gold Level certificate)
    2. Analemma Observing Program
    3. Asterism Observing Program (Eyes Only Level certificate)
    4. Astronomy Before the Telescope Observing Program
    5. Constellation Hunter Observing Program – Northern Skies
    6. Constellation Hunter Observing Program – Southern Skies
    7. Earth Orbiting Satellites Observing Program (Eyes Only)
    8. Galileo Observing Program (Eyes Only Level certificate)
    9. Lunar Observing Program (Eyes Only Level certificate)
    10. Meteor Observing Program (Gold Level certificate)
    11. Solar Neighborhood Observing Program (Eyes Only Level certificate)
    12. Solar System Observing Program (Eyes Only Level certificate)
    13. Space Weather Observing Program
    14. Universe Sampler Observing Program (“-N” certification only)

Complete any 8 programs from this list and get a certificate.

Once you have completed the requirements, contact the HAS Astronomical League Coordinator, Stephen Jones.

 

Video of HAS Main Meeting - August 1st 2025 7:00pm - "The Milky Way Galaxy - Seen Through Radio Eyes"

“The Milky Way Galaxy - as Seen with Radio Eyes”

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By: Matt Boerlage & Erica Coenen

Join us for an exciting journey through our latest project, conducted during the cloudy months of 2025. Using affordable, off-the-shelf components, we built a compact radio telescope to detect neutral hydrogen emissions at the 21cm wavelength—allowing us to observe the cosmos rain or shine, day or night. Through meticulous analysis, we’ve measured the velocities of the Milky Way’s spiral arms, unveiling insights into its structure and dynamics. This project has deepened our understanding of our galaxy’s hidden wonders, revealing a universe beyond what the eye can see and clouds can obscure.

You’re warmly invited to join this vibrant new chapter in our amateur astronomy journey, one you too can share in—you won’t want to miss it!

Speakers: Matt Boerlage and Erica Coenen moved from The Netherlands to Houston about 10 years ago. Both hold PhDs in Mechanical Engineering from Eindhoven University of Technology and work in the Houston energy industry.

Their passion for astrophotography ignited two years ago, leading them to join the Houston Astronomical Society. They organize the astronomy outreach nights at the Kleb Woods Nature Preserve.

Matt and Erica’s interests include astrophotography and scientific imaging, with a focus on spectroscopy. Recently, Matt became a member of the AAVSO (American Association of Variable Star Observers). A year ago, Matt & Erica began hosting the monthly Astrophotography Special Interest Group webinars, every third Wednesday of the month.


To see the video, click The Milky Way Galaxy - as Seen with Radio Eyes.