Synestia - Sarah Stewart
  • Intro by Lauri Roche
  • Origins of the Moon – Randy Enkin
    • Condensation – Nebular Hypothesis – Earth & Moon are sisters – Descartes, Kant, Laplace, Roche, Shapely
    • Fission – Earth & Moon are daughters – Darwin, Fisher, Pickering
    • Capture – collision or gravity – T.J.J. See (1909) & Harold Urey (1952)
    • Giant Impact (asteroid) – Buffon, Daly, Hartmann and Davis
      • Moon’s composition would be 30% Earth, 70% asteroid
      • Isotopic evidence for the formation of the Moon in a canonical giant impact – Nielsen, Bekaert, Auro
      • Synestia – Sarah Stewart (2018)
    • Discussion
  • Beginners’ SIG tomorrow night – David Lee
    • Subjects to be covered in the coming year – topics from NOVA, light pollution, weather, smart telescopes
    • Get Zoom invitation from David david@victoria.rasc.ca
  • Cloud Chamber – Alex Schmid
    • Alpha and Beta particles from Radium 226
    • Solar Wind – ion tracks are visible in the super saturated alcohol in the chamber
  • Asteroids named after UVic astronomers – Peter Jedicke
    • (549676) Thanjavur 2011 QB105
    • (550139) Venn 2012 BF53
    • (550666) Difrancesco 2012 SJ55
    • (734551) Monin 2015 BS16
  • An Evening with David Levy – Nov 8th 5PM PST online – Peter Jedicke
    • Hosted by Montreal & Kingston Centres
    • Zoom registration
    • An informal evening of discussion with David H. Levy. In addition to reflections on his observing career and this year’s significant moments Doveed will speak about his inspirations and some of his fondest memories.
  • Star Formation – Dave Payne (image gallery)
    • How stars form from diffuse gas
    • Gas has a viscous property, causing the spiral arms of Andromeda Galaxy
    • Collapse of a Molecular Cloud (B169 & B174)
    • Sh2-155: Pathway to a Star – SHO Narrowband
  • Presentation: The Habitable Worlds Observatory and the Quest to find life signatures outside our Solar System – Dr. Christian Marois – RASC Victoria – UVic Nov 13th 7:30PM – Kirsten Pedersen
  • Comet observing – Wed evening at VCO – MICs: David Lee & Reg Dunkley
  • Cloudy Nights Astronomy Resource List – Lauri Roche
    • What astronomy media have you been reading, listening to, watching?
    • Dava Sobel – The Sun, Our Star – 5 20-min podcasts on BBC – Natasha Van Bentum
    • RASC Certificate Programs – David Lee & Kirsten Pedersen
      • View the Certificate Programs on the RASC National website
      • Lots of resources provided for each program
      • SkyTools – planning and recording observations
    • Podcasts – Randy Enkin
    • Send your resources to Lauri – roche.lauri@gmail.com

No Astro Cafe next Monday, since its Nov 11th – Remembrance Day.

Annual Buy & Sell at Astro Cafe – Nov 25th – in-person only! Send your list of items to Randy pastpres@victoria.rasc.ca so we can publicize ahead of time.

Video transcript of meeting

Astronomy Cafe – Nov 4, 2024
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