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Events in Somerset(Submit Your Own Event)

March
William Herschel Society Annual Lecture: Herschel: A Space Observatory's Legacy
William Herschel Society and BRLSI
Bath Royal Literary & Scientific Institute, 16-18 Queen Square, Bath BA1 2HN
Fri Mar 1, 2019
Time: 7.30pm
Price: £2 members and students, £5 visitors
Dr Chris North of the University of Cardiff will recap the Herschel Space Observatory, in terms of the mission design and its science goals, and the discoveries that have been made from it. From planets to supermassive galaxies, the range of discoveries is vast. The science continues apace, even nearly 10 years after Herschel's launch, and new results are continuing to come out. He’ll look to the future, and what upcoming missions will do to build on the legacy of Herschel. The Herschel Space observatory was an infrared telescope and so this lecture will complement the Herschel Museum’s current theme of infrared which was famously discovered to be a constituent of the solar spectrum by William Herschel.
April
Variety in Astronomical Orbits
William Herschel Society and BRLSI
Bath Royal Literary & Scientific Institute, 16-18 Queen Square, Bath BA1 2HN
Fri Apr 5, 2019
Time: 7.30pm
Price: £2 members and students, £5 visitors
Mark Birkinshaw is the William P. Coldrick Professor of Cosmology and Astrophysics at the University of Bristol, will give this lecture on Variety in Astronomical Orbits. Gravitation dominates the dynamics of the Universe on scales larger than a few kilometres, and so orbital motion is the basic motion of bodies in the Universe. The variety of orbital motions is much wider than the set of elliptical shapes that are used as an approximation in the Solar System. In this lecture He will extend the concept or orbital motion into more general classes of orbits, such as those around rotating black holes.
May
Beacons in the Night: Mapping the Universe with Variable Stars
William Herschel Society and BRLSI
Bath Royal Literary & Scientific Institute, 16-18 Queen Square, Bath BA1 2HN
Fri May 10, 2019
Time: 7.30pm
Price: £2 members and students, £5 visitors
This is Dr Victoria Scowcroft's lecture originally to be given on 1st February, but cancelled because of the snow on that day, and now rescheduled. For centuries, variable stars have been crucial in the study of stellar populations. Astronomers have conducted rigorous observations over many decades in order to understand the physics behind their varying brightnesses. These unique objects come in many flavours, some changing regularly and predictably, with others changing erratically, sometimes lying dormant for years at a time. The changes that occur in a variable star occur on human timescales, making them one of the few astronomical objects whose evolution we can observe in real time.   However, these variables are not just fascinating probes of stellar evolution; they are also powerful distance indicators, enabling us to measure distances to objects within our Galaxy and beyond. Over the past 100 years, variable stars have made essential contributions to our understanding of the evolution of the Universe, and continue to be at the forefront of modern astrophysics to this day.

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