April Regular Meeting - via Zoom

April 01, 2022, 7:00PM: April Regular Meeting - via Zoom

How You Can Help with the Vera Rubin Observatory (LSST)

With Arne Henden

Later this year, the first results from VRO (previously known as the Large Synoptic Survey Telescope, or LSST) will appear.  This 8-meter class telescope is designed to survey the sky visible from Chile, going very faint but saturating about 18th magnitude.  The talk will highlight the design and construction of LSST, the current status, and how amateurs will be essential in follow-up monitoring of new variable objects discovered by the survey.

Our Speaker : Arne Henden received his doctorate from Indiana University, and subsequently worked for Goddard Space Flight Center, The Ohio State University, and the U.S. Naval Observatory as an instrumentation specialist.  He was the Director of the American Association of Variable Stars for the last decade of his career, retiring to New Hampshire, where he runs several automated telescopes.  He is the author of a textbook and several hundred scientific articles, and has given lectures worldwide.

Arne has been a long time promoter of professional and amateur astronomer collaborations and has been one of the premier mentors of amateur astronomers, especially those interested in variable stars and minor planet astrometry. Arne and his collaborators and volunteers are responsible for the development of the AAVSO – APASS photometric catalog and database of over 6 million stars over 99% of the sky, with magnitudes ranging from 7th to 17thThis database allows simplified reduction amd transformation of photometric observations. Perhaps in an unforeseen use of the APASS database, astro-imagers routinely use it to color balance their images!

We are privileged to have Arne, a true friend and supporter of our community, present to HAS!

To Register for Zoom Meeting: Our April General meeting will be held remotely via Zoom, as this seems to be the most convenient way for HAS members to attend.  Periodically though, we will schedule hybrid in person + Zoom meetings as we did in March. So stay tuned!

Please use the following link to register:


Please watch your email, as you should also receive an email inviting you attend. The email will include any up to date changes (if any) on meeting times etc. You may also register using the link in the email, however it is only necessary to register once.  

We'll have the online chat feature available to us during the talk, and once the presentation is over, we can open up the audio lines for more questions.  We hope to see you online with us on Friday evening April 1st!

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