Astronomy Cafe – Dec 12, 2022

Posted by as Astro Cafe

Video transcript of meeting

  • Astronomical Society of the Pacific – David Lee’s report from a virtual conference
    • Diversity and citizen science
    • Upcoming solar eclipses
    • OpenStax Astronomy – topics for beginners
    • Mentorship of students, STEM
    • Active Learning
    • NASA Citizen Science
    • Vera Rubin Observatory – public portals to data
    • World Asterisms – RASC Charles Ennis
    • Accessible astronomy for blind people and others
  • Citizen Science SIG/group – contact David Lee
  • “Silent Sky” – a play about Henrietta Leavitt- Langham Court Theatre – Jeff Pivnick
    • Playing Jan 25-Feb 11th, 2023
    • RASC should have telescopes outside – Marjie & Reg
  • Astronomical Images – Real or fiction? – Joe Carr
    • Faked ring detail on Saturn image posted by Jason Guenzel and critical reaction from many on social media
    • Io in True Color from Galileo mission, and a monochrome LORRI image from the New Horizons mission
    • Joe’s 2016 Total Solar Eclipse false colour image processed using HDR, split toning and tone curves
    • Joe’s Prominences on the Sun in Ha using Sobel edge detection filter
    • Dave Payne’s Tadpoles Nebula images in RGB versus a Hubble-like palette using narrowband hydrogen, oxygen and sulphur
    • Ken McGill’s Eastern Veil Nebula images with and without stars
    • John McDonald’s various processing techniques of the Cave Nebula using Dave Payne’s RGBL & Ha, OIII & SI narrowband source image data
    • Lava Flows North on Mauna Loa – Landsat infrared data overlaid on natural colour
    • Landsat NIR, IR and green wavelengths used to depict fine detail in the Columbia Glacier – Prince William Sound, Alaska
    • High Dynamic Range source data and resultant image illustration of process
    • Question to the group: Which astrophotos do you consider fake?
      • Dennis Crabtree’s posts of AI-generated images on Facebook
    • Extra: APOD: An Artful Sky over Lofoten Islands (2022 Dec 13) – Giulio Cobianchi
  • Tributes to Dave Bennett – Randy Enkin
    • Guy Nason was his observing partner
    • Randy visited with Sue and took away Dave’s astronomy gear. Bruce Lane will appraise it.
    • Varsavia occultation – David Lee
    • Dave Bennett Memorial
  • Constitution and Bylaws – Randy Enkin
    • Please read the bylaws as sent out to all members
    • Send any comments to the President and Secretary
    • We will adopt the new bylaws at the Special General Meeting by 2/3 majority
    • Then we will hold our AGM based on the new bylaws (hopefully)
  • Makers’ SIG – happening this week on Thursday – contact David Lee
  • Lunar Occultation of Mars – Brian Barber & David Lee
    • Very tough to photograph from Victoria, and the visual views were spotty
    • Enkin’s Daily Moon is profiling photos of the occultation from around the world on Facebook
  • Artemis I Return – Chris Gainor
    • Splashed down after 26 days in space
    • Entry used a different approach path over the South Pole, landing just offshore from San Diego
    • Announcement of the crew for the next mission is next, including a Canadian astronaut
    • Shorty crater and orange soil in 1972 broadcast from the Moon on Apollo Realtime Playback
    • Bob McDonald’s Frankenstein Rocket presentation
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