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X-WR-CALNAME:The Westport Astronomical Society, Home of the Westport Observatory
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DTSTART;TZID=America/New_York:20261117T200000
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CREATED:20261110
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SUMMARY:George Hripcsak – Chasing the Corona from Home
DESCRIPTION:\nJoin us in the WAS Classroom on November 17, 2026 for this live lecture with George Hripcsak. The event will be live-streamed on YouTube and as a Webinar on Zoom, but we’d love to see you in the classroom at the Westport Observatory. As always, the talk will be posted on our YouTube channel afterwards.\n\n\n\nThis talk will review visual properties of the solar corona, related work in the area, the design and construction of a coronagraph, and images taken with the coronagraph.\n\n******\n\n\n\n\n\n\n\nAmateur observations of the corona outside of a solar eclipse have been rare. White light, H-alpha, and calcium solar telescopes are common but the solar corona is a million times dimmer than the solar photosphere, requiring much better conditions and equipment to capture it. Outside of professional equipment, three amateurs have viewed or imaged the corona with a coronagraph and several others have imaged it with a spectroheliograph. Most capture the E-corona, which is a narrow-band phenomenon that benefits from modern filters and imaging. The K-corona, which is the predominant component of the corona seen during a solar eclipse and which is a broad-band phenomenon, has been imaged only once by an amateur.\n\n\n\n\n\n\n\n\n\n\nGeorge Hripcsak is a member of the Amateur Astronomers Association of New York and he loves nighttime visual astronomy and solar astronomy. He likes building things and, given his computer-related day job, avoids astronomy computing as much as possible.\n\n\n\nThe next Cal’s Corner will feature a cluster that reminded someone of a fantasy creature.\n
URL:https://was-ct.org/events/georgehripcsak_11-17/
CATEGORIES:WAS Free Online Science Lecture Series
LOCATION:182 Bayberry Lane, Westport, CT 06880
ATTACH;FMTTYPE=image/jpeg:https://was-ct.org/wp-content/uploads/2026/09/WAS-2026-GeorgeHripcsak_banner.jpg
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