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.

President’s Message – March 2024

Posted by as Memories & history, President's Message

Usually Victoria Centre Presidents serve two years and then move on to something else. Right now, things are a little different. Randy Enkin has just wrapped up three years as President and shifted to other jobs in the centre, including editing SkyNews.

Chris Gainor on Observatory Hill
Chris Gainor on Observatory Hill

When I agreed to return to the Centre President’s job after having served in that position from 2002 to 2004, I reflected on what has changed and not changed since those days when we managed to get by without smartphones and social media. Many members from that time are still active, some have left us, and at least one prominent member of today wasn’t even born yet.

In 2002 I succeeded David Lee as President and two years later handed off to Scott Mair. Scott had come to Victoria in 2001 to open up the Centre of the Universe at the Dominion Astrophysical Observatory, which during those years operated under the wing of the National Research Council.

Two decades ago, we had our monthly meetings in the basement of the Elliott Building at UVic, but we adjourned to the lounge on the fourth floor for our library, and coffee and cookies, as we still do. Astro Cafes took place at Sandy Barta’s place on Fridays and later in Bruno Quenneville’s basement. Sid Sidhu hosted beginning observers at his home in Highlands, and Bill Almond led astro imaging meetings at his observatory in Colwood.

Our Star Parties took place at the Victoria Fish and Game Association just off the Malahat. Our annual banquets happened in November at the Gorge Vale Golf Club. Astronomy Days took place at the Royal BC Museum. Many Victoria Centre members attended the 2003 RASC General Assembly in Vancouver.

Mars made its closest passage to Earth in our lifetimes in August 2003. We drew big crowds to Cattle Point for viewing the Red Planet that week. Blaire Pellatt brought sidewalk astronomy to the streets of Victoria. We lost Ernie Pffanenschmidt and John Howell in 2003.  

Celebrating RASC Victoria Centre's 90th anniversary in 2004 - George Ball, John Climenhaga and Chris Gainor cut the cake.
Celebrating RASC Victoria Centre’s 90th anniversary in 2004 – George Ball, John Climenhaga and Chris Gainor cut the cake.

Our Centre celebrated its 90th birthday in 2004 with a cake that was cut by myself and two Honorary Presidents who have since left us, George Ball and Prof. John Climenhaga. A big centre project that year was relocating George’s telescope dome and his equipment. Our Centre website had migrated the year before to a private ISP after having been hosted on the Victoria Freenet. Joe Carr succeeded David Lee as Webmaster.

In those years, the most popular discussion topic in the Victoria Centre was our desire to build a centre observatory in a time when real estate was already pricey. Early in 2004, talk turned to action when our centre formed an Observing Site Committee chaired by Dave Bennett, along with Bruno Quenneville, David Lee, Sandy Barta, and myself as members.

Four years later, the efforts of our members, including many not on the original committee, bore fruit when the Victoria Centre Observatory opened — with a big assist from the NRC — on Little Saanich Mountain near the DAO and the Centre of the Universe.

In a future message, I will discuss my involvement in the RASC in the two decades between 2004 and this spring, our Centre’s 110th anniversary. But in the meantime, my attention is shifting to a major celestial event that will take place on April 8.

Chris Gainor, President@Victoria.RASC.ca

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!