Astronomy Cafe – Oct 23, 2023

Transcript video

• John McDonald
  • ▪ NightWatch: A Practical Guide to Viewing the Universe– book review and recommended for beginners in astronomy. Perhaps a Festive season gift?
  • Annular Eclipse event at Berwick Elk Lake
    • Thanks for the eclipse glasses (Jeff Pivnick)
    • Residents hadn’t observed a solar eclipse before, so there was lots of excitement
• Astronomy Outreach and Events – Patrick
  • International Dark Sky designations
  • Astronomy events near Hope
  • Bonneford, Alberta
  • Now resides in Victoria
• Nucleosynthesis – Jeff Pivnick
  • First neutron star collision observed six years ago
  • The origin of the elements: a century of progress | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences – Jennifer Johnson (OSU)
    • Element Table showing creation sources
      • Big Bang fusion
      • Dying low-mass stars
      • Exploding massive stars
      • Cosmic ray fission
      • Merging neutron stars
      • Exploding white dwarfs
  • Kilonova – created heavy elements from neutron stars in transition
• Planetary Nebula images
  • Dave Payne
    • Proto-planetary nebula
    • Planetary Nebulae visual differences: larger, two explosions, classic, cosmic wind dispersion
  • Brock Johnston
    • M57
    • NGC 7293 Helix Nebula
    • M97 Owl Nebula
    • NGC 651 Little Dumbbell Nebula
    • M27 Dumbbell Nebula
    • NGC 6888 Crescent Nebula
    • Soap Bubble Nebula
  • Use these images at the Centre of the Universe displays? Lauri Roche
• Lauri Roche
  • 2024 RASC Observers calendars have arrived. Cost is $15 each, with some still available. Contact Lauri roche.lauri@gmail.com
  • Thanks to everyone who attended the FDAO AGM a couple of nights ago.
• Special Interest Groups – David Lee david@victoria.rasc.ca
  • Astrophotography SIG
  • Makers SIG
  • “Fix-It” Clinic at next FDAO Star Party on Nov 18th
  • 3D-printed celestial objects, such as Moon surface features, Eta Carina, asteroids. Pre-made designs available for on Thingyverse and NASA 3D Resources.
• Famous Eclipses in History – Randy Enkin
  • Some during BCE Era?
  • Mar 1, 1504 Lunar Eclipse in Jamaica – Christopher Columbus
  • 1868 solar eclipse – Janssen observed helium in the solar spectrum before element was identified on Earth
  • 1919 solar eclipse – Eddington confirmed General Relativity
• Eclipses from Enkin’s Daily Moon – Randy Enkin
  • Art, photos, juxapositions
• Weather Forecast for just-past Annular Eclipse – Reg Dunkley
  • GOES-West satellite cloud cover loop shows the eclipse darkening
  • DAO Current Weather – Sky Camera
• Sunspot Groups – David Lee
  • Sunspots emerge through magnetic fields
  • Individual sunspots and groups of sunspots
  • AAVSO sunspot – online reporting