HOWARD
ASTRONOMICAL
LEAGUE
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HAL Meetings in 2023
HAL General Meetings (Open to the Public)
- As of September 2023, we have resumed in-person General Meetings at
Robinson Nature Center (as well as on Zoom).
- For specific meeting dates, see the HAL Calendar.
- Additional information is announced via the HowardAstro Google Group.
- All HAL Meetings (and star parties) are held in locations which are smoke free by law. Help us protect our ability to use these facilities by not smoking.
General Meetings are held from 7:00PM to approximately 9:00 on the 3rd Thursday
of every month via Zoom (until further notice).
HAL Planning Meetings (Open to All Members)
Planning Meetings to discuss future club direction, events, meeting topics, outreach, etc. are open to all members. Attendance is encouraged.
They are usually held from 7:00 to 8:00PM on the 1st Monday
of every month via Zoom (until further notice).
Sometimes these meetings are rescheduled or cancelled due to holidays or board member unavailability.
Check our home page, posts to the HowardAstro Google Group, or the HAL calendar.
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HAL's COVID-19 Policy for Events - Updated May 2023
- In Howard County, COVID-19 community level is Low. We are following Howard County guidelines:
https://www.howardcountymd.gov/health/covid-19
https://www.howardcountymd.gov/News021822
- Face coverings are optional inside the Alpha Ridge HALO building. People may choose to mask at any time.
- If you are experiencing any flu-like symptoms or have tested positive for COVID, please be
considerate of others and refrain from attending HAL events.
- For HAL impromptu and member-only star parties, participants should wait for an invitation before approaching to look through others’ telescopes; respect each other’s desires for social distancing.
2023 General Meeting Topics / Speakers |
Jan. 19 |
Thursday, January 19th, 2023 beginning at 7:00PM
Topic: NOAA'S Joint Polar Satellite System, JPSS-2, the Sequel
Presenter: Ted Leoutsakos, NASA - JPSS Deployed Systems Team Senior Engineer
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
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Back by popular demand! Ted presented to HAL about the
first JPSS mission in January 2021. His 2023 presentation
will provide details about JPSS-2, the new mission.
JPSS-2 successfully lifted off from Vandenberg Space Force Base on Nov. 10, 2022.
The Joint Polar Satellite System (JPSS) is the nation's new generation polar-orbiting operational environmental satellite system.
JPSS is a collaborative program between the National Oceanic and Atmospheric Administration (NOAA) and its acquisition agent,
National Aeronautics and Space Administration (NASA). JPSS provides critical environmental satellite data to support NOAA's
ongoing mission to understand and predict changes in the weather, oceans and climate.
Ted Leoutsakos has extensive NASA/DOD and commercial experience with
broad end-to-end satellite systems engineering knowledge in complex
system integration, testing, operations, training, and ground system
development with over a dozen missions under his belt. A life-long
Star Trek fan, Ted recalls his dad taking him to the library at age 5
to check out his first read entitled "The Book of Rockets", and the rest is history…
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Feb 16 |
Thursday, February 16th, 2023
Topic: Defending Planet Earth: The Double Asteroid Redirection Test
Presenter: Dr. Angela Stickle, DART Impact Modeling Working Group Lead, Johns Hopkins Applied Physics Laboratory
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
NASA’s Double Asteroid Redirection Test (DART)
was the first
planetary defense test mission. The DART spacecraft
purposefully ran into a small asteroid,
Dimorphos, on September
26, 2022, in order to test asteroid deflection. DART was a huge
success, changing Dimorphos’s orbital period by around 30
minutes and generating many tons of ejecta. We will discuss
planetary defense, the DART mission, initial results from the
team and how we are using those results to learn more about
Dimorphos, Didymos, and future applications to
planetary defense.
Dr. Angela Stickle is a planetary geologist with a background
in Aerospace and Mechanical Engineering, and impact processes
on planetary surfaces. She specializes in hypervelocity impact
processes and dynamic failure of materials. Dr Stickle is
currently a senior research scientist at the Johns Hopkins
University Applied Physics Laboratory. She is the Deputy
Principal-Investigator for the Mini-RF radar, a Co-I for the
LRO-LAMP instrument aboard the Lunar Reconnaissance Orbiter,
the impact modeling working group lead for the Double Asteroid
Redirection Test mission, and a Co-I on the Dragonfly mission.
Her research includes analyzing young impact craters on the
Moon to better understand ejecta emplacement processes, impact
modeling on asteroids and rocky/icy bodies, planetary defense
testing, and working to understand and evaluate available
technology for future lunar surface missions.
Asteroid 36986
Stickle is named in her honor.
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Mar 16 |
Thursday, March 16th, 2023
Topic: Dragonfly: Flights of Exploration on an Exotic Ocean World
Presenter: Dr. Melissa Trainer, NASA GSFC / Planetary Scientist
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
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Titan
is the only moon in our solar system with a dense atmosphere,
which supports an Earth-like hydrological cycle of methane clouds,
rain, lakes, and seas. Complex organic surface materials may
preserve, in a deep freeze, the types of organic chemicals that
would have been present on Earth before life developed. The
Dragonfly mission to Titan
will characterize its habitability and
determine how far prebiotic chemistry has progressed in
environments known to provide the necessary ingredients for life.
The mission comprises a single rotorcraft lander with a
sophisticated scientific payload, designed to take advantage of
Titan's environment and achieve wide-ranging exploration goals by
flying to sites in different geologic settings.
Dr. Melissa Trainer is a planetary scientist at NASA's Goddard
Space Flight Center (GSFC) with expertise in the composition of
planetary atmospheres and the production of organic molecules and
aerosols via in situ synthesis pathways. Dr. Trainer currently
serves as a Deputy Principal Investigator (PI) for the Dragonfly
mission to Saturn's moon Titan, part of the
NASA Planetary Science New Frontiers Program.
She is also the lead for the Dragonfly Mass
Spectrometer (DraMS), which enables the investigation of Titan's
surface composition and characterization of potential prebiotic
chemistry.
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Apr 20 |
Thursday, April 20th, 2023
Topic: Discussion
Presenter: HAL Members
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
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May 18 |
Thursday, May 18th, 2023
Topic: Exploring the Solar System and Beyond – the Role of NASA’s Deep Space Network
Presenter: Glen Nagle, Science Communicator, Canberra Deep Space Communication Complex
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
Glen will be speaking on the role that Canberra plays as part of NASA’s
Deep Space Network,
and the dozens of deep space robotic missions exploring our solar system and beyond. He will
also discuss the vital role of communications in the success of the
Artemis missions designed
to return humans to the surface of the Moon in the next few years.
Glen Nagle is the Commonwealth Scientific and Industrial Research Organisation
(CSIRO) communications officer for the
Canberra Deep Space Communication Complex (CDSCC).
He has been employed there since March 2002.
His work focuses on educating and promoting space science to the wider community
and especially to the younger generation, with the goal of exciting them about
engineering, science and mathematics.
Glen's professional career in the space and education sector has spanned over 38
years. He has worked with organisations to promote international and domestic
development of space science related services and technology and has supported
several space conference and industry groups. Glen has been an active grassroots
promoter of science to schools and the public and shares his enthusiasm through
public speaking and media appearances.
Glen has also worked at the CSIRO’s
Parkes Radio Telescope,
the Australia Telescope Compact Array
and is currently also supporting NASA Operation activities at the
Canberra complex.
Glen Nagle’s work has also extended to areas such as the internet, either designing
or contributing to a number of science related websites, and as a keen graphic
designer has produced artworks that have appeared in several books, magazines and
scientific journals.
He is a regular guest on several syndicated radio programs and on television
through programs such as Catalyst and Sunrise. For three years and 100 episodes,
Glen also hosted his own weekly television program about space exploration and
astronomy on ABC2 called ‘Skywatch’.
Glen’s knowledge, enthusiasm and passion for space exploration comes across in all
his work, presentations and public outreach activities.
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June 15 |
Thursday, June 15th, 2023
Topic: The First Isolated Black Hole
Presenter: Dr. Jay Anderson, Observatory Scientist, Space Telescope Science Institute
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
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Since Black Holes emit no light, they are hard to find.
Some super-massive black holes
can be found at the centers
of galaxies, since gas often dribbles onto them and lights up. Other
regular-sized black holes
can be seen when they are part of a
binary system,
either from orbital motion
or from dribble from their companion. Kailash Sahu and
I have been pursuing a HST program to find
isolated black holes
that have been meandering through the Galaxy.
I will report on our recent finding of an isolated BH of
about 7 solar masses.
Brief Bio:
- 1986-1990: BA in Physics and French from Rice University
- 1990-1997: PhD in Astronomy from UC Berkeley
- 1997-2007: Post-doc on grant money
- 2007-present: Observatory Scientist at Space Telescope Science Institute
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Jul 20 |
Thursday, July 20th, 2023
Topics: CCOR: NOAA's New Space Coronagraphs
& Celebrating the 2023 and 2024 Eclipses
Presenters: Dimitris Vassiliadis, Scientist at NOAA/National Environmental Satellite Information and Data Service
& Kim Eaves, Communications Lead for Education and Outreach
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
Celebrating the 2023 and 2024 Eclipses:
NOAA is partnering with the NSF and NASA teams to help promote the 2023
and 2024 eclipses. Together we are hosting 4 events across the nation to
educate the local population. Each location and the partnerships
established will be included, as well as our audience we are trying to
reach.
CCOR: NOAA's New Space Coronagraphs:
Space weather is a fascinating
applied-science field which has been rising in prominence since it is
related to many real-world problems as well as plasma-physics questions.
Space weather has the potential to impact technologies in space and on the
ground, and importantly place astronauts and certain airline crews at
risk. Early warnings of solar and interplanetary activity are therefore
valuable to spaceflight managers, satellite operators, electric power-grid
managers, and others. Images of the solar corona are particularly
important since they can be used to detect
coronal mass ejections (CMEs),
plasma structures emitted by the Sun that can produce the greatest space
weather disruptions on and near Earth. The physics of CMEs contains
several unsolved problems in magnetohydrodynamics, magnetic topology, and
particle acceleration. In addition to the imagery, measurements of the
solar wind upstream of the Earth are useful for driving a wide variety of
real-time numerical weather prediction models. The
Space Weather Follow On
(SWFO) program is developed by the National Oceanic and Atmospheric
Administration (NOAA) in close collaboration with the National Aeronautics
and Space Administration (NASA). The program aims to place two NRL-built
Compact Coronagraphs (CCORs)
in space, one at geostationary orbit (GEO) in
2024 and one at the Sun-Earth Lagrange 1 (L1) point in 2025. A third
coronagraph is planned to be launched on board ESA's Vigil mission to
Lagrange 5 to contribute solar imagery from a different perspective for
3-dimensional mapping of CME structure and motion. I will discuss the SWFO
program with emphasis on the coronal observations.
Kim Eaves is the Communications Lead for Education & Outreach at the
office of Space Weather Observations within NESDIS/NOAA. She has provided
communications support for the office for approximately 9 years, including
support for 4 different satellite launches. She is also the Program Lead
for the eclipse events.
Dimitris Vassiliadis earned his PhD in space physics at the University of
Maryland, College Park and was a postdoc at NASA/Goddard Space Flight
Center where he worked on magnetospheric dynamics and space weather
effects and developed predictive models based on data from spacecraft such
as ACE, WIND, SAMPEX, POLAR, etc., and ground magnetometers and other
systems. He then taught physics, astronomy, and other subjects in academia
where he worked with graduate and undergraduate students on space physics
and aerospace engineering projects such as cubesat and sounding-rocket
payloads. Since joining NOAA/NESDIS, he has been active in the Space
Weather Follow On (SWFO) and Space Weather Next (SW Next) programs and
other flight projects.
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Aug 17 |
Thursday, August 17th, 2023
Topic: DarkSky International 2023, A Presentation to the Amateur Astronomy Community
Presenter: Tom Reinert, President of DarkSky International
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
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The August presentation will be a report to the amateur astronomy community on the current
status of IDA and the fight against growing light pollution, focusing on increasing
awareness of light pollution, changes in the organization now known as
DarkSky International,
and how amateur astronomers can make a difference in reducing light
pollution in the years ahead.
Tom Reinert is a retired Washington, D.C. lawyer who spent most of his career
representing airlines and railroads in labor and employment matters, including
extensive experience translating scientific experts for lay decision-makers. He has
assisted the International Dark-Sky Association on policy and legal issues for almost
a decade, inspired by seeing the Andromeda Galaxy with his naked eyes from atop Kitt
Peak. His prior environmental activism includes a decade fighting water pollution
with a local riverkeeper organization, the South River Federation, on the Chesapeake
Bay in Maryland. Currently residing in the City of Fairfax, Virginia, he is an active
member of NOVAC. He and his wife Chris travel extensively in the Western United
States seeking dark sky locations, and he is a member of the Tucson Astronomical
Association. He is a graduate of Harvard College (where he never took an astronomy or
physics course) and the Harvard Law School (where he never took an environmental law
course).
Also: Ooty Radio Telescope - Arjun Meenashi Sundar (see above YouTube video).
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Sept 21 |
Thursday, September 21, 2023
Topic: The Art and Science of Visualizing Webb Imagery
Presenter: Alyssa Pagan, Science Visuals Developer, Space Telescope Science Institute
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
The amazing visions from the
Webb Space Telescope have captivated the world. However,
there is a long and involved process by which the scientist's black and white observational
data are transformed into dynamic color imagery for the public. Join image specialist
Alyssa Pagan as she demonstrates, in detail, the art and science of translating infrared light
beginning with acquiring the data to finalizing the press release imagery which is intended to inform, inspire and engage the public.
Alyssa Pagan is a Science Visuals Developer who works in the
Office of Public Outreach within the
Space Telescope Science Institute.
Using her background in Art and Science, she works closely with
astronomers to create color images of space that are intended both to educate, inspire and showcase the beauty of our Universe.
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Oct 19 |
Thursday, October 19th, 2023
Topic: Stellar Occultations by Small Solar System Bodies: Tiny Shadows, Big Science
Presenter: Dr. Bryan Holler, STScI Scientist I
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
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Stellar occultations
occur when a foreground solar system object passes
in front of a background star, casting a small shadow observable for a
brief amount of time. These shadows can be observed when they fall on
the Earth and proper placement of telescopes perpendicular to the
shadow's motion can be combined to provide valuable information about
the body's size and shape. These events have also been used to detect
previously unknown satellites and rings around small bodies as well as
topographic features on objects in the distant reaches of the solar
system. The beauty of stellar occultations is that anyone with a
telescope and a CCD imager can participate, since the stars being
occulted are much brighter than the small bodies occulting them. I will
discuss recent exciting stellar occultation results and how to get
involved with future events.
Bio: I first knew that I wanted to be an astronomer in August
2003, during heightened interest in the close approach of Mars to the
Earth. I entered college a few years later at the University of
Maryland as an Astronomy major and earned my PhD at the University of
Colorado, Boulder in 2016. For almost 7 years now I have worked at the
Space Telescope Science Institute in Baltimore, providing support for
solar system observations with the James Webb Space Telescope. My
research focuses on studies of Pluto and other trans-Neptunian objects,
with specific investigations into surface compositions, rotation
periods, satellite orbits, and constraining physical properties through
stellar occultations.
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Nov 16 |
Thursday, November 16, 2023
Topic: Venus Tectonism
Presenter: Dr. Debra Buczkowski, Senior Staff Scientist, Johns Hopkins Applied Physics Laboratory
Artifacts:
Presentation PDF
| Video Recording on YouTube
| Chat Log
The talk will be an overview of what we know about the Venus surface and why we care, from a geologist’s point of view.
Dr. Buczkowski is a structural geologist and planetary geologic mapper who has completed projects on the rocky bodies of the
Solar System, including Mercury, Venus, the Moon, Mars, Eros, Vesta and Ceres (and Earth!).
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Dec 21 |
Thursday, December 21, 2023
Holiday Pot-Luck Party at Robinson Nature Center
Zoom link: https://us06web.zoom.us/j/87142566469?pwd=9V17dxLUpGNZ68vU4VsA8zIEs7NJ9h.1
Once again, as is our long-standing tradition, we
will use the occasion of our December meeting to hold
our Holiday Pot-Luck Party at the
Robinson Nature Center.
The meeting will be on Thursday, December
21st from 7 to 9 pm, with doors opening at 6:30 for
those who bring something and need some time to set
up. We'll also include a zoom meeting (link above)
for those who can't attend in person.
If you can make it, please RSVP as soon as possible
to vcs_dc@yahoo.com
with Subject line: HAL Holiday Party RSVP and indicate how many people will attend
and what item(s) you anticipate bringing.
Examples of items brought to
past holiday parties include… Meatballs, Ham, Salads,
Chili, Casseroles, Potato salad, Coleslaw, Desserts,
Juices and Sodas, Vegetables, Chips, etc…
Note that
this is a members-only event, but you're welcome to
bring family members.
In addition to the food and fun, if you want to bring
in telescopes and related products to swap, sell, or
giveaway, bring the items with you. It is a great way
to pick up gear you have been looking for and/or
unload items you no longer need or want.
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Archives:
2013 Meetings - Speakers and Topics
2014 Meetings - Speakers and Topics
2015 Meetings - Speakers and Topics
2016 Meetings - Speakers and Topics
2017 Meetings - Speakers and Topics
2018 Meetings - Speakers and Topics
2019 Meetings - Speakers and Topics
2020 Meetings - Speakers and Topics
2021 Meetings - Speakers and Topics
2022 Meetings - Speakers and Topics
2023 Meetings - Speakers and Topics
© 1999-2024 Howard Astronomical League All Rights Reserved Last modified: January 02, 2024 @ 20:13 EST |