Astronomy Cafe – March 25, 2024

Posted by as Astro Cafe

Video transcript of meeting

  • MMT Observatory – Kali Salmas, Queue Observer
    • Mount Hopkins, 55km south of Tucson, Arizona
    • Originally had six 1.8m mirrors, 4.5m collecting area
    • Now a single 6.5m mirror with 3 secondaries: f/5, f/9, f/15 (adaptive)
    • Fred Lawrence Whipple Observatory facility on the mountain
    • Instrumentation
      • Binospec – wide-field opitcal spectrograph
      • Hectochelle/Hectospec – 300 fibre optic spectroscope, robotically reconfigured
      • MMIRS – Infrared spectroscopy, nitrogen cooled
    • Magellan and MMT share instrument designs
    • Operating Staff
      • Telescope Operator – 3
      • Queue Observer – 3
    • Data acquisition
      • Weather, tracking, seeing, turbulence, lenticular cloud formation
      • 7.5-12 hours observing time
      • Moon phase
    • Target Considerations
      • Both manual and automated queue scheduler
      • Sensor being used
      • Magnitude range: 11-26
      • Moon phase
    • Setup on Target – telescope operator and queue observer work together
    • Taking Data – calibration frames, guide stars, check data, add notes, move to next target
    • Q&A
  • Astro-tourism in Northern Arizona – Dave Payne
    • Flagstaff area
    • Barringer Crater – Largest meteorite at 150′ across
    • Lowell Observatory
      • Many domes
      • Original observatory built in 1894
      • Historic 24″ Refractor
      • Privately financed by Percival Lowell to map Mars
      • History of discoveries and innovations by other astronomers at the site
      • Clyde Tombaugh – discovered Pluto with a 12″ telescope
      • 5m Discovery telescope – currently being used, has 5 instruments
  • Recurrent T Coronae Borealis – David Lee david@victoria.rasc.ca
  • Chris Gainor
    • Chandra X-ray space telescope may go dark due to impending budget cuts – 25 years of work done. Save Chandra
    • David Lane, past president of RASC has died. He was the author of Earth Centred Universe planetarium software, operated a popular robotic telescope from his home in Nova Scotia, and was on staff at St. Mary’s University until his retirement.

There is no Astronomy Cafe on April 1 due to Easter holiday. The April 8 meeting will be online only, since many members will be away to observe the Total Solar Eclipse from the path of Totality.

Astronomy Cafe – Mar 18, 2024

Posted by as Astro Cafe

Video transcript of meeting

  • Edmonton RASC’s BNLO Black Nugget Lake Observatory Unyk-Drew 32″ Telescope – Alister Ling
    • 32″ 0.8m folded f/4 128″ focal length Newtonian Alt/Az
    • Donation from Bob Drew, built by Roman Unyk, and funds from Alberta gamblers
    • East of Edmonton, fairly dark site, about 1-hour drive from the city
    • County land and camping, surrounded by farm land
    • Visual use only for public and member events
    • 3 observers at a time inside the dome
    • Observations
      • Crescent Nebula NGC 6888 – sketch by Berta Beltran
      • Einstein’s Cross – 17th Magnitude, gravitationally lensed quasar
      • Veil Nebula – amazing detail
      • M36 Pleiades cluster – FOV is too narrow to appreciate star clusters
      • Pease 1 planetary nebula in M15 globular cluster – star hopping required
      • NGC 40 – planetary nebulae are ideal for this telescope – colour apparent
      • M76 Little Dumbbell – lots of detail
      • M1 Crab Nebula – OIII filter reveals detail
      • Planets – not great targets for this telescope, but moons of Uranus: Umbriel, Titania & Ariel can be detected
      • NGC 891 – edge-on galaxy – irregular dark lane is obvious
      • Stephan’s Quintet – not an exciting object, so perhaps airglow and/or aurora degradation
      • M33 – good detail
      • NGC 206 Andromeda starcloud
      • M31 Andromeda Galaxy – core – scotopic & photopic vision – green colour visible
      • Colour of the core of the Orion Nebula – Hydrogen a, b, g, d – green colour visible
    • Comments from Bob Drew
  • Astrophotographs and Sketches
    • Observing from Victoria Centre Observatory – Randy Enkin
      • Photos of Comet 12/P Pons-Brooks using 12″ Dob and 20″ Obsession with new tracker
      • Moon sketch using 20″ Obsession
    • Mike Nash’s lunar photo compared with Randy Enkin’s sketch – both from their homes
    • Comet 12/P Pons-Brooks
      • Mar 18, 2024 APOD – red spiral core of the comet featured
      • Dan Posey’s photo of the comet and beautiful tail
  • Leap Year 2024 – Jeff Pivnick
    • Common Year, Solar Year and Sidereal Year
    • Leap Years started with Julian calendar
    • Gregorian calendar – more accurate compensation to define leap years
    • Accuracy of calendars adjusting for leap years
  • Events – David Lee, Randy Enkin, Lauri Roche
    • Makers SIG cancelled for this month
    • Next week’s Astro Cafe – presenter Kali Salmas, Operating the MMT Telescope in Arizona
    • FDAO Star Party – March 23 starting at 6:30PM

Astronomy Cafe – Mar 11, 2024

Posted by as Astro Cafe

Video transcript of meeting

  • Astrophotography – Dave Payne
    • Orion Nebula, M78 – reflection, emission and dark nebulae
    • Triangulum Galaxy M33
    • Monoceros (next to Orion) – Fox Fur Nebula
  • Barbara Lane 1955-2024
    • Memories of Barbara shared by Randy Enkin and other members
    • Hosted Astronomy Cafe along with her husband Kurt
    • Awarded a Certificate of Appreciation in 2022 for her contributions to Victoria Centre
    • Past Secretary of Victoria Centre, creating wonderful annual reports
    • Kurt and Barbara were a team, volunteering at public outreach events
  • New Crescent Moon of Ramadan 1445 – Randy Enkin
    • Muslim months start at the first glimpse of the New Crescent Moon – beginning of Ramadan
    • Observing a very new Crescent Moon is tricky!
  • They Promised Her the Moon – Dennis F
    • A local play by St. Luke’s Players
    • Originally, women were being tested for the Mercury Program
    • Chris Gainor added to the history of women in space
  • Chris Gainor
    • Canada Post 2024 Eclipse stamp – available this Thursday from your local post office
    • Comet 12/P Pons-Brooks – brightening as it falls apart. It might be visible during Totality on Total Solar Eclipse day.
  • Discord for RASC Victoria – Darren Delorme
    • Private chat room with channels and discussion threads for specific topics
    • Useful as an alternative to email
    • Post information of interest to everyone
    • Join the RASC-Victoria Discord Server!
  • UVic presentation this Wednesday at 7:30PM – Reg Dunkley
  • Volunteers needed
    • Astronomy Cafe – Randy Enkin email
    • Astronomy Day – Lauri Roche email
    • Victoria Centre’s Volunteers List – Marjie Welchframe email

Astronomy Cafe – Mar 5, 2024

Posted by as Astro Cafe

Transcript video of the meeting

  • 2024 Total Solar Eclipse (TSE) Information and Discussion
    • Randy Enkin
      • Observing the 2024 TSE from Montreal, Quebec
      • Review of the cosmic geometry for a solar eclipse
      • Track of Totality
      • Totality versus partial eclipse
      • How long have you been in the shadow?– list of top eclipse chasers
    • Joe Carr – 4 TSEs
    • Mike Webb – 8 TSEs
      • Totality flies by quickly, so relax and experience it
    • David Lee – 2107 in Oregon
      • Be sure to practice with your observing and photography gear ahead of time
    • Leslie Welch – 9 TSEs
      • Be sure to visually observe and experience the whole eclipse
    • Neil Banera – 2 TSEs
      • Luckily the cloud parted during Totality when observing from Austria
    • Lauri Roche – 2 TSEs
      • Observing the 2024 TSE from St. Catherines, Ontario
      • Solar Eclipse glasses available from the Centre of the Universe – about 100 left – email
      • DiscoverTheUniverse.ca – best Eclipse 2024 resource for teachers and students
      • Eclipse 2024 – RASC National listing of TSE events (scroll down)
      • 2024 Eclipse Ontario Education Bundle – comprehensive eclipse information for teachers and students
    • Reg Dunkley
      • Look at this forecast site starting two days before eclipse day – Astronomical Cloud Cover – refer to Eastern United States – 12 UTC
      • Video of 2017 TSE from Western Oregon University’s observing field
    • Leah & Cathy – observing 2024 TSE from Niagara-On-The-Lake
  • SIGs – David Lee
  • Chris Gainor
    • 2017 TSE from Madras Oregon
    • Observing the 2024 TSE from Ontario, near the USA border
    • Lauri Roche – CHEK News profile – Inspiring Island Women
    • RASC Victoria Centre Council Meeting on Thursday evening
  • Astrophotography – Matt Neild – Bubble Nebula
  • UVic Monthly meeting – Reg Dunkley
  • RASC Victoria Social Dinner – Lauri Roche
    • Over 60 attended last Monday, Feb 26th
    • Many new people
    • Thanks to all the organizers – a fun evening!

Galaxies at the Dawn of Time with JWST – Dr. Leonardo Ferreira, UVic Postdoc

Posted by as UVic Meetings

Date/Time: Wednesday March 13, 2024 starting at 7:30PM

Location: University of Victoria, Bob Wright Centre, Lecture Theatre A104. Park in Lot 1 (pay parking) and cross Ring Road.

JWST First Deep Field Image: Galaxy Cluster SMACS 0723
JWST First Deep Field Image: Galaxy Cluster SMACS 0723

The new James Webb Space Telescope (JWST) brought upon us a golden era for the study of distant galaxies. For the first time, we are capable of seeing the visible light of galaxies during the first billion years of the Universe. Understanding their shapes and forms, and how they changed since this epoch, reveals not only how they formed and evolved, but how our own Universe evolved as well.

This talk will highlight groundbreaking discoveries made with JWST and illustrate how they alter our understanding of the cosmos compared to the pre-JWST era. We will also address misconceptions that have arisen in the mainstream media regarding these new insights into cosmology and how our concept of galaxies has evolved dramatically since 1920.

20240313-DrLeoDownload

Biography: Leonardo Ferreira was born in Brazil and pursued an undergraduate degree and master’s degree in physics at the Federal University of Rio Grande, where he first began his work on the morphology of galaxies. He then moved to the UK for his PhD studies in Astronomy, focusing on how galaxies evolved across cosmic time. In 2023, Leonardo joined the University of Victoria as a Postdoctoral Fellow, working within Prof. Sara Ellison’s group on the topics of galaxy evolution through merging interactions. Leonardo has led pioneering studies on the morphology of distant galaxies using JWST and remains actively involved in this research area.

Astronomy Cafe – Feb 5, 2024

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Video transcript of meeting

  • Intro – Jeff Pivnick
  • Enceladus – APOD Feb 5, 2023 – Jeff Pivnick
    • Smaller moon of Saturn discovered by William Herschel
    • The Great Forty 48″ reflector in Slough near Windsor – Herschel’s telescope
    • Cassini Mission
      • Discoveries: magnetic field disruptions, jets of water from “tiger stripe” fissures, wobbly orbital period caused by loose crust
      • 2:1 resonance with Dione results in elliptical orbit and interior heating of the ocean below the crust
      • Cassini division in Saturn’s rings – named for Gian Domenico Cassini, discoverer
      • Mimas 1:2 resonance with Cassini division
    • Diameter 504 kms, 14% liquid water
    • Discussion
  • Randy Enkin
  • Annual General Meeting – RASC Victoria Centre – Randy Enkin
    • Feb 12 7:00PM – Zoom meeting – info and special link to be sent to members
    • Victoria Centre’s Annual Report – contact Randy Enkin with your report president@victoria.rasc.ca
    • Financial Report
    • Election – Reg Dunkley
      • Chris Gainor has agreed to stand for President
      • We now have a full slate, but further nominations will be sought at the AGM
      • New Council will be seeking involvement from members for volunteering
      • We need a quorum of 25 members. If you cannot attend, contact Randy president@victoria.rasc.ca (or another member attending) to be your proxy for voting purposes.
  • Social Dinner – RASC Victoria Centre – Four Mile Pub – Feb 26th
    • Large parking lot, but please carpool if possible
    • Sound system with microphone and speaker will be used for speakers
    • Attendees please contact Marjie to RSVP by Feb 21st
  • SIGs – David Lee david@victoria.rasc.ca
    • Beginners SIG – tomorrow night’s presentation by Randy Enkin on observing the Moon
    • Citizen Science SIG cancelled
    • Astrophotography SIG – 4th Wednesday – hosted by Brock
  • Astronomy Books – David Lee
    • Observer’s Sky Atlas – Erich Karkoschka
    • 21st Century Atlas of the Moon – Charles Wood, Maurice Collins
  • Astronomy Cafe – March 4th
  • Scitech Daily
    • Perseverance Mars Lander – sedimentary layers discovered by ground penetrating radar and samples taken
    • Ingenuity helicopter has crashed

Next Astro Cafe – March 4th – none for the rest of February

Astronomy Cafe – Jan 22, 2024

Posted by as Astro Cafe

Video transcipt of meeting

  • Intro – Jim Cliffe
  • Space Telescopes – Chris Gainor
    • How Long Will Hubble Last? – Sky & Telescope article
    • US Postal Service issued two stamps with images from JWST – $30.45 and $9.85 for their express service
  • David Lee
    • Inside the Star Factory – book profiling JWST by Chris Gunn (photography) & Christopher Wanjek
    • Makers SIG – meeting online this Thursday
      • Citizen Science – transitioning from analog to digital recording for occultations – IOTA
      • Imaging computing platforms – including Astroberry
    • Astrophotography SIG – meeting online this Wednesday – Dave Payne
      • Camera settings
      • Photo showcase
      • Q&A
  • Canadian stamp for the Total Solar Eclipse – Lauri Roche
    • March 14th issue day
  • Eclipse viewing glasses – Lauri Roche
  • Astrophotos
    • Dave Payne – online gallery
      • Flying Dragon Nebula – molecular cloud in Cygnus – taken last summer
      • Medusa by Garvacchio
      • Medusa Planetary Nebula in Gemini – RGB and narrowband taken earlier this month
    • Brock Johnston – online gallery
      • Christmas Tree and Fox Fur Nebula
      • Network Nebula – part of the Veil Nebula
      • Crab Nebula
    • Astrophoto Processing – discussion by Ken McGill, David Lee, Brock Johnston, Jim Cliffe
  • Astronomy Information Sources – Susan Grady posed the question to the group
  • Panic! Early results regarding the morphological and structural properties of galaxies seen with the James Webb Space Telescope – UVic, Wed, March 13 – Dr. Leonardo Ferreira, Postdoctoral Fellow, Department of Physics & Astronomy
  • Young people’s astronomy club? – question by Garry Sedun
    • Some High schools and Middle schools offer astronomy groups
    • Discussion about how to reach out to younger people
    • Youth under 18 need family member who is also a member if VCO visit is desired – Chris Purse
    • Using smartphones on a telescope for imaging – simple mounting platforms work well
  • FDAO – Lauri Roche – roche.lauri@gmail.com
    • Games Night at this Saturday’s Star Party – 6:30-10PM – NRC, FDAO & RASC teams
    • FDAO Strategic Planning coming up
  • Victoria Centre – upcoming events– Reg Dunkley & Lauri Roche
    • AGM – Feb12 7:00PM – online zoom to all members
      • Election
      • Financial Report
      • Awards announcements
    • Social Evening – Four Mile Pub – Feb 28th – sign up with Ken Atkinson secretary@victoria.rasc.ca
      • Socialize with your fellow astronomers and friends over some good food and drink
  • Lunar and Mars Missions – group discussion

Revealing the Invisible Universe with Radio Telescopes – Dr. Jennifer West, NRC

Posted by as UVic Meetings

Date/Time: Wednesday January 10, 2024 starting at 7:30PM

Location: University of Victoria, Bob Wright Centre, Lecture Theatre A104. Park in Lot 1 (pay parking) and cross Ring Road.

Cylindrical reflector and antenna - CHIME, DRAO Penticton
Cylindrical reflector and antenna – CHIME, DRAO Penticton

Radio astronomy has been around for nearly a hundred years. In that time, we have only managed to see a glimpse of the Universe’s many hidden secrets that can be revealed at radio wavelengths. With recent advances in computing, we have seen an explosion of new radio telescopes, including the upcoming Square Kilometre Array for which Canada has officially announced its intention to become a full member. With these telescopes comes a wealth of new and upcoming data. I will discuss some of the things that we hope to learn, the challenges we still face, and the new technology that comes with it.

Dr. Jennifer West
Dr. Jennifer West

Jennifer West is currently a Covington Fellow at the Herzberg Astronomy & Astrophysics Research Centre, National Research Council of Canada. She is interested in magnetic fields in supernova remnants and the Milky Way Galaxy, using data from large surveys using cutting edge radio telescopes. Previously she was at the Dunlap Institute at the University of Toronto and prior to that she completed her PhD at the University of Manitoba.

Astronomy Cafe – Dec 4, 2023

Posted by as Astro Cafe

Transcript video

  • HD110067 “could become the most interesting star in the galaxy” – Randy Enkin
  • FDAO Fundraising campaign star parties at the Centre of the Universe – Lauri Roche
    • Pancake breakfast – Dec 9 9:30am-Noon
    • Solstice Party & Pluto debate – Dec 16 6-9pm
  • RASC – Lauri Roche
    • RASC 2024 Observers calendars ($15) and almanacs ($18) – 3 of each still available – contact Lauri roche.lauri@gmail.com
    • RASC Victoria social evening – seeking a venue for February 2024
  • SIGs – David Lee
  • Hubble News – Chris Gainor
    • Gyroscope problems – 3 out of 6 have failed
    • Hubble could stay in orbit until 2036, but imaging, power or computer systems could fail sooner
    • Budget cuts at NASA could end the mission
  • Buy & Sell at Astronomy Cafe – review from last week’s event
    • About 40 attendees – new and old members, and non-members
    • Lots of equipment for sale
    • Sid brought lots of equipment to sell and give away on behalf of Victoria Centre
  • Astronomy images
    • Dave Payne – gallery
      • Monkey Head Nebula in Orion
      • Bubble Lobster Claw Nebulae in Cassiopeia
      • Demo of creating an image – basic processing steps and explanation of colours
      • 3-4 nights of image acquisition and several hours of processing
    • Brock Johnston – gallery
      • NGC 1333 – reflection, emission and dark nebula
      • Cocoon Nebula – lots of dust rings the emission nebula along with numerous background galaxies and stars
  • UVic Monthly Meetings – 2nd Wednesday of each month – Reg Dunkley

Space-Based Far-Infrared Telescope – Dr Doug Johnstone

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The Need for a Space-Based Far-Infrared Telescope – Dr Doug Johnstone, NRC

Date/Time: Wednesday December 13th starting at 7:30PM

Location: Bob Wright Centre, Lecture Theatre B150. Park in Lot 1 (pay parking) and cross Ring Road.

Meeting video recording

Far infrared astronomy has been referred to as: the science of the cold, the old, and the dusty. In this talk I will discuss the importance of the far-infrared for astronomy investigations of young stars, distant galaxies, and the granular dirt responsible for rocky planets and, potentially, life! I will give a little history of the space-based missions that have already taken place and provide a glimpse into the difficult task of ensuring a future mission, and Canadian involvement. Along the way I will enumerate the significant complexities of far infrared measurements that lead to the requirement of expensive space-based observatories.

Dr. Doug Johnstone is a Principal Research Officer at NRC Herzberg Astronomy and Astrophysics (HAA) and the NRC; President’s Science Advisor; Adjunct Professor, University of Victoria.

Doug has been an astronomer at HAA for over twenty years, studying star and planet formation with ground and space-based telescopes. For two years he was the Associate Director of the sub-mm James Clerk Maxwell Telescope in Hawaii.

Most recently his research has focused on the mass assembly of young stars, monitoring the brightness changes of deeply embedded protostars from the mid-IR to sub-mm. He also has guaranteed time observations with JWST, searching for forming planets around young stars.