Astronomy Cafe – Apr 15, 2024

Posted by as Astro Cafe

Meeting transcript video

  • Oak Bay Lighting in Uplands – Dave Robinson
    • Resident pressure stopped replacement of existing historic lighting
    • Proposed lighting upgrade is a poor idea
    • There are good options available for “historic” light fixtures
    • RASC Victoria should approach the mayor
    • Email to obcouncil@oakbay.ca
  • Solar Eclipse Reports
    • Aboard the Discovery Princess – 125nmi SW from Mazatlan, Mexico
      • Joe Carr
        • John McDonald and Bill Weir and his wife from Victoria were also onboard the ship
        • Pastry chefs served eclipse cookies
        • Princess Cruises and the ship’s officers were very well prepared for this special cruise, giving out eclipse glasses to both passengers and crew, communicating the ship’s position and heading would be, and having two experts aboard to give presentations on the subject and answer questions.
        • Observed a beautiful Green Flash at sunset the night before the eclipse
        • Ships within a few miles: Zaandam, Koningsdam, Sh Diana, and Ruby Princess
        • John and Joe observed from Joe’s balcony, since it was on the side of the ship facing the Sun
        • Eclipse photos and videos
          • Partial phase
          • Projected images of the eclipsed Sun through deck chair webbing
          • Totality, including prominences, plasma streamers, Diamond Ring at C3 and the planets Jupiter and Venus near the Sun
          • Wide field time lapse video of the eclipse
        • A 10ºC temperature drop was measured with a portable weather station during the eclipse
      • John McDonald
        • Eclipse shadows spelling words
        • Lots of great food onboard the ship
        • Observed and photographed partial phases and Totality
        • It was very dark overhead but quite light around us
        • Lots of excitement onboard among the passengers after the eclipse
      • Bill Weir
        • Observed from the top deck with a Coronado PST for Ha and a small Apo refractor with white light filter
        • Night sky viewing with Dr. Matt or Prof. Shelly on the top deck
        • Showed lots of passengers solar images
        • Saw Jupiter, Venus and a glimpse of 12P/Pons-Brooks comet
        • Corona was a spectacular flower-like apparition
        • Enrichment Speakers
          • Dr. Matt – dinosaurs, meteorites and astronomy
          • Prof. Shelly Bonus, UCLA, Mt. Wilson – friend of John Dobson
        • The ship was remarkably stable
    • Sherbrooke, Quebec – Alex Schmid
      • Drove to Quebec and back from BC!
      • Problems with telescope tracking and camera
      • Perfectly clear on eclipse day
      • Observed prominences, Venus and Jupiter
      • Lots of traffic on the roads after eclipse
    • Miramachi, New Brunswick – Clayton Uyeda
      • Had concerns about all the clouds, but it cleared
      • Observed from a remote site with his wife
      • Twilight but not dark
      • Indigenous smudging, drumming nearby
      • Students are back in Victoria High School. John Geehan trying to start up the trans-Neptunian Objects initiative with the high school’s new observing deck.
    • Central Texas – Peter Jedicke
      • Drove from Ontario
      • Weather was iffy, but it cleared for lots of glimpses of the eclipse
      • Enjoyed reports from dozens of people spread out all along the path of totality
    • Kingston, Ontario – Marjie Welchframe
      • Cloudy during the eclipse, but usable observing
    • Photos of the 2024 Total Solar Eclipse – by RASC Victoria Centre members
  • Activities along eclipse path – Randy Enkin
    • AirB&B occupancy map
    • Traffic maps and delays
    • Air traffic
    • inaturalist.org observations
    • Eye pain queries
  • Victoria Centre Observatory – David Lee, Randy Enkin and Reg Dunkley
    • 7 observers at recent observing session on April 13th
    • A glimpse of 12P/Pons-Brooks comet just after sunset
    • Mike Nash and Randy Enkin observed and photographed the Moon
    • Used a half hour on the Takahashi telescope to sketch Theophilius crater
    • Some first-time VCO observers had an interesting time
  • Chris Gainor
    • Met with Jenna Hinds at RASC National
      • Insurance coverage for VCO will be put in place
      • GA planned for May 4-5
      • Shot a video during the eclipse from Colchester Harbour, Ontario
  • Upcoming Activities
    • Council meeting on April 23, 2024
    • Astronomy Day planning meeting on April 25, 2024

Marjie Welchframe will host next week’s Astro Cafe on April 22, 2024.

Astronomy Cafe – Apr 8, 2024

Posted by as Astro Cafe

Meeting video transcript

Total Solar Eclipse 2024 reports

  • Montreal, Quebec – Brian & Nathan Hellner-Mestelman
    • Ice crystal 15º ring
    • Travelled from southern Ontario
  • Montreal, Quebec – Randy Enkin
    • Family eclipse experience covered by a CBC journalist
    • Ice crystal 15º ring
    • Expo 67 island had 150,000 observers
    • Interviews: CFAX, Times-Colonist, CBC
    • Observed: “pink” fingers coming inward to the Moon
    • Temperature drop
    • Eclipse cookies
  • Windsor, Ontario – Chris Gainor
    • Drove south to get into the path of totality in Colchester Harbour to observe over Lake Erie
    • High cloud didn’t diminish the view
    • 1979 eclipse was in bitter cold, 2017 in Oregon
    • 1.5 minutes of Totality
    • First eclipse for family – they were impressed
    • Video of the eclipse experience
  • St. Catherines, Ontario – Lauri Roche
    • Heavy cloud, but saw some glimpses of partial eclipses, but no totality
    • Lots of observers at Brock University didn’t see much
    • Temperature drop
    • Sudden darkening during totality, despite not being able to observe it
  • 30km west of Montreal, Quebec – Chris Purse
    • Drove from Kingston, Ontario to western Quebec on 401
    • Hazy conditions before totality
    • Diamond Ring was spectacular
    • Lots of detail visible during totality
    • Temperature drop
    • Lots of traffic on the roads as they drove back to Ottawa
  • Ron Fisher
    • Daughter in Hamilton reported the sky cleared enough to experience totality through the clouds
  • Niagara-on-the-Lake, Ontario – Jill Sinkwich
    • Unfortunately thick clouds obscured the whole eclipse
    • Temperature drop, sounds, darkness
  • Mazatlan, Mexico – reported by Dave Payne on behalf of Joe Carr
    • Photos by Joe aboard the Discovery Princess cruise ship offshore from Mazatlan
    • Bill Weir and his wife and John McDonald were also aboard
    • Miles Waite was nearby on the sister ship Ruby Princess
    • Some thin high cloud, but beautiful conditions
    • Eclipse cookies
    • Diamond Ring
    • Several prominences
    • More complete report from Joe and John next week
  • 2024 Eclipse Weather – Reg Dunkley
    • Forecast models
    • Review of weather conditions and forecasts along the path of totality
    • Animation showing the Moon’s shadow travelling across North America
    • Review of weather conditions over Victoria
  • Partial Eclipse from Victoria – David Lee & Kirsten Pedersen
    • Despite the weather and 17% eclipse, attendance at the Centre of the Universe event was very good
    • Nothing much to see through heavy cloud
    • CHEK and CTV interviews by David Lee and Dennis Crabtree
  • Next Total Solar Eclipses
    • 2026 over Iceland and Spain
    • 2044 over North America

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 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!

Astronomy Cafe – Feb 5, 2024

Posted by as Astro Cafe

Video transcript of meeting

  • Intro – Jeff Pivnick
  • EnceladusAPOD 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

Total Solar Eclipse – April 8, 2024

Posted by as Observing Highlights

2017 Total Solar Eclipse - plasma streamers at totality - photo by John McDonald
2017 Total Solar Eclipse – plasma streamers at totality – photo by John McDonald

A Total Solar Eclipse is a rare astronomical event (2017 was the last one), and it is even rarer for one to occur in locations that are easy to travel to. Although only a partial eclipse is observable from western Canada, the eclipse tracks diagonally across North America (southwest to northeast) on April 8, 2024. In fact, everyone in North America is within striking distance of being able to observe this amazing event, where the Moon slides in front of the Sun for a few brief minutes, suddenly and totally obscuring the Sun.

If you haven’t observed a Total Solar Eclipse, this is your chance!

Location

The eclipse tracks diagonally across North America, starting in Mazatlan, Mexico, across Texas and other states in the middle of the USA, tracking across southern Ontario, Quebec and the Maritimes. Dedicated eclipse chasers are seeking the best prospects of clear skies by travelling to Mexico, but there are lots of Canadians planning to observe from locations near home, despite the chance of clear skies being poor at that time of year.

Map of eclipse track across North America
Eclipse track across North America – Jay Anderson, Eclipsophile

Time and Date’s 2024 Total Solar Eclipse site gives all the facts and figures required to find and enjoy the eclipse, including an interactive zoomable map showing the eclipse track and links to livestreams if you want to experience this eclipse from the comforts of home.

What if you can’t travel to the track of totality?

Partial Solar Eclipse from SW British Columbia
Partial Solar Eclipse from SW British Columbia – Time and Date’s interactive eclipse map

You can still see a partial solar eclipse from anywhere in North America. Use Time and Date’s interactive eclipse map to get the calculated timing for the eclipse in the area you plan to observe from. Click and zoom to your area, then click on your observing spot to see a popup telling you how long the eclipse will last and what you will see.

From our location in southwest BC in Canada, a small notch out of the solar disk will appear on eclipse day – obscuring about 17% of the Sun. Not exciting compared with the dramatic Total Solar Eclipse observed from the centreline, but still an interesting apparition to observe, assuming the 76% chance of cloud cover doesn’t prevail!

Weather

Weather always plays a big part in any solar eclipse, so being mobile is key to improving the odds of actually seeing the event should clouds threaten to obscure the Sun at the critical moment. Our very own Jay Anderson (former RASC Journal editor) is a weather expert, and specializes in forecasting weather for solar eclipses. His Eclipseophile website offers sage advice backed up with maps and charts depicting weather prospects for each eclipse happening in the world for the next several years. Read Jay’s analysis of the area you propose to observe from, so you understand how the weather might behave on eclipse day. Topography, elevation changes and local factors play into how the weather evolves throughout the day for a particular locale. Become a local weather expert, and you increase your chances for success!

Map showing the probability of clouds along the eclipse track
Probability of clouds along the eclipse track – Jay Anderson, Eclipsophile

Observing

Observing a Total Solar Eclipse is pretty easy, however that said, if you haven’t done it before, it’s nice to have experienced eclipse observers around to help you get the most out of your time under the Moon’s shadow. Obviously the time of total eclipse is the main event, however other things happen beforehand, afterwards, and during an eclipse that are worthwhile.

Uranus, Jupiter, Comet Pons-Brooks (12P), Mercury, eclipsed Sun, Venus, Neptune, Saturn - diagram from Starry Night Pro Plus 8
Uranus, Jupiter, Comet Pons-Brooks (12P), Mercury, eclipsed Sun, Venus, Neptune, Saturn – diagram from Starry Night Pro Plus 8

Although the eclipsed Sun is the main target, look around in the darkened sky for planets and other bright celestial objects. There is a good chance eclipse observers will be able to see: Uranus, Jupiter, Comet Pons-Brooks (12P), Mercury, Venus, Neptune and Saturn! Of course, the sky only darkens for the observer if they are in the path of totality, so anyone observing a partial eclipse won’t see any solar system bodies (except the Sun itself).

Be sure to try out any gear you propose to take with you before you leave. Make sure you have proper solar eclipse filters for any binoculars (or your eyes), camera lenses and telescopes you are bringing along. Remember, you only have a few minutes to see totality!

Finally, relax and enjoy the day. Arrive early. Try to manage your stress level. Just sit back in a reclining chair, have your solar glasses handy, and enjoy!

Safely observing a solar eclipse – read about how to safely observe a solar eclipse

DIY Box Pinhole Projector – to safely observe the eclipse with only a box and some aluminum foil!

Victoria RASC eclipse chasers on the field observing the 2017 Total Solar Eclipse from Oregon
Victoria RASC eclipse chasers on the field observing the 2017 Total Solar Eclipse from Oregon

Photography

If this is your first time experiencing a Total Solar Eclipse, don’t risk missing the eclipse by fiddling with cameras! Observing through (filtered) binoculars is a low risk way to capture the moments of totality in your memory.

For dedicated photographers, using their gear to capture a Total Solar Eclipse can be a right of passage, and has the potential to either be a highlight of your lifetime photography experience (if you succeed) or end up being a point of shame you never want to talk about again (if you fail). Take test photos of the Sun weeks beforehand, so you know your photo gear will work as expected. Always have a backup plan for when (not if) gear breaks, or you simply can’t get it to work properly. Here are some scenarios for consideration for those who are brave enough to want to multitask during totality – a once-in-a-lifetime event (least difficult listed first):

  1. Use a smart phone on automatic mode to take photos or videos of the scene around you
  2. Use a camera and wide angle lens mounted on a tripod to record the landscape, people and the eclipsed Sun (and perhaps stars and planets) in the sky. Take a random series of shots or set the camera to shoot automatically at regular intervals to create a time lapse series.
  3. Use a camera and moderate telephoto lens on a tripod to shoot video of the eclipse in the sky. Keep the telephoto lens short (80mm to perhaps 135mm) to let the eclipsed Sun pass through the frame.
  4. Use a camera and long telephoto lens on a tripod to shoot photographs of the eclipsed Sun. Take photos of the eclipse at the important moments: plasma streamers, Bailey’s Beads, Diamond Ring, totality, and partial eclipse phases.
  5. Use a telescope on a tracking mount with a camera on the back to capture closeup details of the eclipse events such as Bailey’s Beads and the Diamond Ring.

Expansion of the list above, with important details about setup, rehearsing, and special gear you may wish to consider purchasing can be found in this article: How to photograph a solar eclipse, with Alan Dyer – EarthSky.

Travel

RASC Eclipse chasers setup in the Libyan Sahara - March 29, 2006
RASC Eclipse chasers observing from the Libyan Sahara – March 29, 2006

Dedicated eclipse chasers and tour operators have made reservations at least two years ago at all the prime locations for this eclipse along the centreline where the weather is best. That’s not to say last-minute travellers are shut out from experiencing this eclipse – by planning carefully and compromising a bit, it can still work. Flights to hotspots like Mazatlan a couple of days before to a couple of days after April 8th will be fully booked, as will hotels and guest houses. Flying to nearby airports and staying in accommodation outside the centreline can make sense. Driving into the track of totality early on eclipse day can work for many who have not planned ahead.

Many of the USA states the eclipse track runs through will not have crowds of people once you are on country roads. With careful planning using the interactive eclipse and weather maps, it is certainly possible to observe the eclipse from the side of the road, parking lots, campsites, or farmer’s fields. Interstate highways which are in the track of totality will experience congestion, depending on how close to civilization the location is. When driving, expect long delays even for 24 hours or so after an eclipse as all those eclipse chasers try to get home! To avoid that anxiety, plan to stay a day or two longer near your observing site before commencing your road trip home.

Help!

If this will be your first time observing a total solar eclipse, no doubt you have many questions and concerns, and don’t know where to start. The resources presented here may be overwhelming. Please ask any questions you might have about eclipses at Astronomy Cafe, held each Monday evening by RASC Victoria Centre. Your fellow RASC members have observed solar eclipses before…they can help!

If you are reading this from other locations, find your local RASC Centre in eastern Canada which have posted eclipse events and information – Eclipse 2024 RASC.

Resources

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 Payneonline 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 Johnstononline 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

Astronomy Cafe – Jan 15, 2024

Posted by as Astro Cafe

Video transcript of meeting

  • Intro – Brock Johnston
  • DAO Virtual RealityLight Wave ObserVR – Darren Delorme
    • Photogrammetric capture using Drone Deploy to create a point cloud of the outside of the observatory site
    • Modelled the telescope and mount inside using Blender from smart phone imagery and archival images
    • Working on windows, dome shutters, viewing platform, surrounding buildings and terrain
    • Unity – star catalog data – currently using 100,000 stars
    • VR headsets and hand motion tracking
    • VR tour starts at Elk Lake built on Lidar data
    • Multi-user experience/star party (up to 64 people), rooms, Meta platform launch
    • Inspired by Loki on Disney+
    • Next step is to create the stories and lessons
    • Perhaps add John Plaskett as a tour guide
    • Discussion of next steps, project milestones, first use, terms of use
  • Games night at FDAO Star Party – Jan 27th
  • The Colours of Uranus and Neptune – Randy Enkin
    • Are the two planets the same colour?
    • Uranus discovered by Herschel in 1781
    • Neptune discovered by several people in 1821, 1845 and 1846
    • Voyager 2 space probe has visited both planets in 1986 and 1989
    • Modelling the seasonal cycle of Uranus’s colour and magnitude, and comparison with Neptune – Patrick G. J. Irwin et al
    • Members relate their observations of Neptune and Uranus
    • Chris Gainor reminisced about being at JPL as a press reporter for the planetary encounters by Voyager 2. Both Hubble and JWST now observe the two planets regularly
  • David Lee david@victoria.rasc.ca
    • Occultations – citizen science
      • NEO
      • Int’l Occultation Timing Assoc – occultations.org
      • New DIY kits available
    • Makers SIG – Jan 25th
      • Imaging computing platforms – convergence and DIY solutions
  • FDAO – Lauri Roche roche.lauri@gmail.com
    • Star Party on Jan 27th
    • Strategic Planning for FDAO coming up
    • Send suggestions for new activities for the FDAO
  • RASC Victoria Centre Events – Lauri Roche & Reg Dunkley
  • Herschel Museum  – Reg Dunkley
    • Near Paddington Station, London, UK
    • Treadle lathe, mirror grinding, forge for mirrors
    • Catalog of stars
    • Site of discovery of Uranus in the garden
    • Musical instruments

Astronomy Cafe – Oct 30, 2023

Posted by as Astro Cafe

Transcript video

  • New members
    • Matt – astrophotographer
    • Ewen, Michaela – Swiss visitors
    • Cameron, Lisa, baby Max
    • Carlos
  • Eclipses – Randy Enkin
    • Geometry of eclipses
    • Types of solar eclipses
    • The Saros Cycle
      • Lunar Months – Sidereal, Synodic, Draconic, Anomalistic
      • Every 18 years, the solar eclipse cycle repeats, but the track moves a third around the Earth
    • Antikythera mechanism (~200 BCE) – predicts Saros cycles
  • What is a conjunction? David Lee, Marjie Welchframe
    • It’s a conjunction if the two objects share Right Ascension
    • derekscope.co.uk – list of all conjunctions to 2025
    • A large number occur during daylight
    • Discussion of how to observe conjunctions during the day
  • Makers SIG  – this Thursday- David Lee david@victoria.rasc.ca
  • Telescope Clinic – Nov 18 at FDAO Star Party event at the Centre of the Universe
    • Need some RASC volunteers to help attendees use their telescope
    • Contact Lauri Roche roche.lauri@gmail.com
  • Victoria Centre Observatory – Reg Dunkley, David Lee
    • Oak tree encroachment on the observatory is now trimmed back, thanks to NRC
    • MICs need to be trained on the new equipment and procedures
    • Workflows for imaging are now in place
    • Picnic table – new one in the budget
  • Amateur Radio and the ISS – Jim Cliffe
    • Image broadcast from ISS to amateurs – Slow Scan TV
  • Pearson CollegeAstronomy Outreach – Bill Weir
    • Westshore Walmart parking lot
    • Moon, Jupiter, Saturn
  • James Webb Space Telescope – Chris Gainor
    • M1 Crab Nebula – Hubble image vs Webb image
  • 2024 RASC Observers Calendars – Lauri Roche
    • $15 each – still some available – contact Lauri roche.lauri@gmail.com
    • Lauri will also distribute calendars at the monthly meeting at UVic on Nov 8th
  • Nov 8 monthly meeting at UVic – Reg Dunkley

Astronomy Cafe – Oct 23, 2023

Posted by as Astro Cafe

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
  • 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
  • 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