Astronomy Cafe – Dec 4, 2023

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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 Paynegallery
      • 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 Johnstongallery
      • 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.

Astronomy Cafe – Nov 20, 2023

Posted by as Astro Cafe

Video transcript of meeting

  • Victorian Asteroids – Randy Enkin
    • Lauri Roche and Chris Gainor now have asteroids named after them
    • Peter Jedicke proposed the names to the IAU’s WGSBN
    • Lauriroche – Visible in the summer sky, 14 magnitude
    • Gainor – evening sky now, spring will be the best view
    • Past namings: Sidhu, Bettyhesser, Jamesheasser, JackAlice (Newton), Scarfe, Plaskett, Balam, Tatum, Climenhaga, Plaskett, Kavelaars, Bohlender, DAO, Crampton, UVic, Vicsympho, Makosinski, Kleewyck (Emily Carr), Frasercain
    • Congratulations to everyone with named asteroids
    • Other Awards and Honours – Victoria Centre members with asteroids named after them
  • New members intro – Suzanne, Jerod (both in person)
  • Lunar sketches – Randy Enkin
    • Cassini over several nights
  • Swap and Shop – next week in-person at Astronomy Cafe
    • Bring your astronomy stuff!
    • Bring your money to buy stuff!
    • Send your list of equipment to Chris Purse (membership@victoria.rasc.ca) ahead of time so we can promote the event
  • Website Infrastructure – project leader needed – Randy Enkin president@victoria.rasc.ca
    • Determine the scope of the project, coordinate the technical details, help Council select a new web provider
    • Talk to Joe Carr Webmaster for details (web@victoria.rasc.ca)
  • Jeff Pivnick
    • A review of Circumstellar Disks by Brenda Matthews, who was our speaker from last Wednesday’s meeting at UVic
    • ALMA situated on the Atacama Desert 5,000m / 16,000′ altitude
    • Monthly meetings – future list through to March 13, 2024
    • Garry Sedun – working at altitude is very difficult
    • 134th Birth Anniversary of Edwin Hubble today
      • Lawyer, teacher of math and physics
      • Graduate work at University of Chicago in physics and astronomy
      • Started work in 1919 Mt Wilson observatory on the new 100″ Hooker telescope, studying nebulae and galaxies
      • Classification scheme for galaxies
      • Founded extra-galactic astronomy
      • Red/blue shift gives indication of distance of celestial objects
      • Several articles in Skynews by Bruce Lane highlighted Hubble’s work
    • Discussion of all topics presented by Jeff
  • Observatories Observed in France – Sep 2023 – Brian Barber
  • Deep Sky at IMAX, the story of James Webb space telescope is now on – Jeff Pivnick
  • Astronomy Day – out-of-date astronomy magazines and Observers Handbooks are good for giveaways, so don’t throw them out. Contact Jeff Pivnick (jeff.pivnick2@gmail.com)
  • Calendars for 2024 – some still available
  • Centre of the Universe Events – Lauri Roche
    • FDAO Telescope Clinic – thanks to all the volunteered last Saturday
    • Dec 9th – fundraising breakfast
    • Dec 16th – solstice party
  • Nebula from Gamma Cassiopeia, “the Ghost of Cassiopeia” IC59 & IC63 – astrophoto by Dave Payne
  • Observing Report
    • Fireball spotted by Dennis F’s wife at 6:40AM a few mornings ago. Widely reported in the region, but Sid Sidhu’s All-Sky camera didn’t capture the event.
  • Upcoming Events
    • Astrophotography SIG this Wednesday – Dave Payne
    • UVic speaker for Dec 13 – Far Infrared space observatory – Dr. Doug Johnston – Reg Dunkley

Next Astronomy Cafe on Nov 27th is a Swap ‘n Shop – bring your astronomy gear to sell, and bring cash to buy stuff!

Astronomy Cafe – Nov 6, 2023

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Video transcript

  • Even & Michaela Sedman
    • Astronomy in Switzerland
      • 50 observatories
      • 51 astronomy societies
      • 10 research institutes
    • Societe D’Astronomie du Haut-Leman SAHL
      • Created 1970
      • About 160 members, ~50 active
      • Similar aims to RASC
      • Observatory – currently 14″, soon to be 16″ SCT, other telescopes
      • Astrophotography
    • Dark Sky Switzerland
      • Zurich, Geneva, Lausanne emit the most light pollution
      • Urban areas are now turning their street lights down or off
      • Light pollution is reducing slowly – both private and public initiatives
      • Government reacted to energy crisis caused by Russian invasion of Ukraine
    • Stars for All – SAHL Working group
      • Why – impact on humans and environment
      • How – focus on themes with direct impact on communities
      • Citizen science – measurement of the quality of the night sky
      • Population density affects light pollution levels – Vancouver Island and Switzerland comparison
      • Education activities – conferences and roundtables
    • Alphi Saves the Night – Alphi Suave la Nuit
      • Children’s book
      • Profits from the book are donated to the charity – Twinkle
      • Supports education and awareness
  • Council meeting – Nov 14 – Randy Enkin
    • Meeting is open to all members – link sent to members by the secretary
    • Upcoming AGM
    • Succession – new volunteers for Council are being sought
  • Monthly Meeting at UVic – Reg Dunkley
  • SIGs – David Lee – david@victoria.rasc.ca
    • Getting Started in Astronomy SIG – this Tuesday – observatories in Europe visited by Brian Barber
    • Citizen Science SIG – this Thursday – introduction to data collection
  • FDAO Monthly Star Party – Lauri Roche
    • Telescope clinic – Nov 18th
      • Bring your unused or broken telescope to get help
      • Tips on how to observe
    • Planetarium and Plaskett dome tours
  • Upcoming Equipment Swap – Nov 27th – Randy Enkin
    • Gifts before the holiday season?
    • Location: Astronomy Cafe venue at Fairfield Community Association
  • Deep Sky IMAX Theatre documentary – Chris Gainor
    • Features the James Webb Space Telescope
    • Nov 17-26, 2023 – tickets
  • Astronomical Images
    • Brock Johnston
      • NGC 206 – region of Andromeda galaxy
      • M33 – Triangulum Galaxy
      • Jupiter
      • Elephant Nebula
      • Fireworks Galaxy
      • NGC 7142, 7149 – reflection nebula, open cluster and galaxies in the star field
      • Horsehead Nebula
      • M31, 32, 110 Andromeda Galaxy – wide-field
    • Ken McGill
      • V298 Cephei – region in NGC782
      • Bubble & Lobster Claw Nebulae
      • Heart & Fish Head Nebulae
      • M31, 32, 110 Andromeda Galaxy – 3-frame mosaic
      • Soul Nebula
    • VCO Image – David Lee & Reg Dunkley
      • First light with our new Narrowband filters
      • 90º away from a Full Moon
      • M27 Dumbbell Nebula
  • Ghost Crater in Ptolemaeus – the Moon – Randy Enkin
    • Process
      • Find an area of interest on the Moon – Dial-a-Moon
      • 6″ Newtonian, EQ mount
    • Sketching technique & tools
      • 2H sharp pencil
      • Start with a white pencil (from Lee Valley)
      • 2B dull black pencil
      • Annotate with sharp pencil
    • Mare, craters filled in by volcanic basalt rock

No Astronomy Cafe next Monday due to statutory holiday for Remembrance Day.

Circumstellar disks – Dr. Brenda Matthews

Posted by as UVic Meetings

“You can’t have one without the other: Circumstellar disks produce and are produced by planets” – Dr. Brenda Matthews, NRC

Many people know that planets form in circumstellar disks around young stars, but did you know that planets later drive the formation of a secondary disk in approximately 1 out of every 5 solar systems? I will present the latest imaging of planet formation and explore the improving possibilities of detecting planets around main sequence stars via the disks they can help create at later times. Using imaging from ALMA and JWST, I will present new discoveries about these more evolved “debris disks” and highlight the potential for future instrumentation to teach us even more.

Date/Time: November 8, 2023, starting at 7:30PM

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

ALMA telescope array
ALMA telescope array
Dr. Brenda Matthews

Dr. Brenda Matthews has a PhD from McMaster University in 2001. From there, she held a postdoctoral fellowship at UC Berkeley before joining NRC in 2004. Since 2019, she has been the Millimetre Astronomy Group Lead and, as such coordinates the MAG support for the ALMA telescope as part of the North American ALMA Science Center. She is an expert in infared,, mm and submm astronomy, polarization imaging and interferometry. Since 2002, much of her research has focussed on debris disks, circumstellar disks around main sequence stars, produced via collisions of comets and asteroids, and she has authored two reviews on debris disks.

She was the PI of a key program on the Herschel Space Observatory, is a member of the disks team of the Gemini Planet Imager Exoplanet Survey and is a member of an Early Release Science team targeting exoplanets and disks with JWST. Dr. Matthews was also a member of the Canadian Astronomical Society’s 2020 Long Range Plan panel and is co-chair of the Science Advisory Committee for the Next Generation Very Large Array (ngVLA).

Astronomy Cafe – Oct 30, 2023

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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

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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

Astronomy Cafe – Oct 16, 2023

Posted by as Astro Cafe

Transcript video

  • Resumption of monthly meetings and speakers at UVic –  Jeff Pivnick
  • Unexpected Results from James Webb Space Telescope – Chris Gainor
  • Annular Solar Eclipse from Victoria on Oct 14, 2023 – Randy Enkin, Lauri Roche, David Lee
    • Lots of families at FDAO event on Observatory Hill
    • Randy gave 10-minute eclipse basics talks
    • Pre-eclipse report and time lapse video by David Lee
    • FDAO eclipse event report by Lauri Roche
      • Streamed images from David Lee’s telescope in lower parking lot
      • Streamed images from Time & Date website
      • Homemade waffles, fruit and parfaits were popular
      • Lots of RASC members
      • About 150-200 public attended
    • Eclipse Images by members
      • Impromptu event from Cattle Point – Nathan Hellner-Mestelman
      • Sid Sidhu’s Highlands neigbourhood event – David Lee
      • Gordon Head sketches – Dorothy Paul
      • Observatory Hill photo series – Brock Johnston
      • John McDonald’s photos – David Lee
      • Cattle Point – Alex Schmid
      • Partial Solar Eclipse 2023 – RASC Victoria online gallery
    • Eclipse photos from online sources – Randy Enkin
    • Eclipse reports from members
  • Total Solar Eclipse – April 8, 2024 – Discussion about this upcoming event
  • SIGNALS – Star-formation, Ionized Gas and Nebular Abundances Legacy Survey – CFHT – Laurie Rousseau-Nepton, Principal Investigator
  • FDAO Star Party AGM, 2024 RASC calendars or workbooks – contact Lauri Roche (roche.lauri@gmail.com)
  • Beginners’s SIG – Algol Minima – David Lee

President’s Message – October 2023

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It’s October! The nights are longer. The moon is higher. And lots of events are happening for our amateur astronomy community.

The big one is the Annular Solar Eclipse which will happen on the morning of Saturday October 14. The moon will nibble away at the sun starting at 8:07AM, half an hour after sunrise in the east. The maximum here will be at 9:19AM with a whopping 85% of the sun in eclipse. And the show is over at 10:38AM.

Ring of Fire - Cedar City, Utah on May 20, 2012

The Victoria Centre is not running any official viewings. Members are invited to help the Friends of the DAO with their Eclipse Breakfast at the Centre of the Universe. Note, we have 1,000 solar-viewing glasses to hand out, so we encourage members to go to good east-viewing sites (e.g., Clover Point, Cattle Point, Mount Tolmie) with a handful of these glasses. Contact me (email) or Lauri Roche (email) to get your glasses. Lauri will also be handing them out at the University on October 11.

What a great segué! Finally, after a 3½ year hiatus, we are back to holding monthly Wednesday evening talks at the University of Victoria. The first will be on Wednesday October 11, at 19:30, in the Bob Wright Centre, Lecture Theatre A104. We have a very exciting speaker, Christian Marois, who led the international team of astronomers that first imaged extrasolar planets. His topic is “The NRC NEW EARTH Laboratory, and the Quest to Develop the Tools to Find Life on Exoplanets”. Let’s have a big crowd join in this talk. And afterwards, everybody is welcome to chat in the Astronomy lounge in the Elliott building, and have access to our library for the first time since the lockdown. Many thanks to Alex Shmid and Reg Dunkley for organizing the event.

After a 2-week break, the weekly Monday evening Astro Café continues on October 16 with Jeff Pivnick as our host. Join online with Zoom, or better still join in person at the Fairfield Community Centre and enjoy the cookies!

The last point I am pleased to make is that the Victoria Centre Observatory is up and running better than ever. Use the wonderful telescopes up there or bring your own, and join the community looking at the sky together. Note that you must be on the “Active Observers List” to be allowed up to the VCO (Members Only). Contact our Membership Chair, Chris Purse (membership@victoria.rasc.ca) to get on the list. Members on the Active Observers List get emailed when the sky is predicted to be clear and one of the Members in Charge opens it up.

We are so fortunate to have such a vital community in the Victoria Centre. Do seize the opportunities.

And as always,
Look Up!
Randy Enkin (email)

Astronomy Cafe – Sep 25, 2023

Posted by as Astro Cafe

Video transcript of meeting

Fuelling Galactic Powerhouses – Dr. Mallory Thorp

  • Mallory is a postdoctoral researcher the Argelander-Institut für Astronomie (AIfA) at the University of Bonn; MSc & PhD at UVic
  • Hubble Deep Field – how do all those galaxies interact with each other?
  • Spitzer Infrared Nearby Galaxies Survey (SINGS)
  • Galaxy Zoo – internals to galaxies
  • Baryon Cycle – gas, dust, stars
    • Inter-stellar Medium – gas and star formation
  • Sloan Digital Sky Survey
    • huge number of galaxies
    • great for big picture studies
  • Phangs – high resolution studies of individual galaxies covering the complete Baryon Cycle
    • Uses multiple telescopes for source data, including both space and ground telescopes – ALMA, JWST, HST, MUSE
    • NGC 628 / M74
      • Voids in the galaxy – biggest is The Phantom Void (1kpc across)
      • Recently formed stars on the edge of voids at these “shock fronts”
      • How stars form has now been observed, thanks to JWST
    • Out of 74 galaxies only a dozen are mergers
    • NGC 3637 – example merger galaxy
  • Catastrophic events impact interstellar medium
    • Strong star formation when the galactic structure is essentially destroyed
    • Active Galactic Nucleus (AGN) – eventual result of interaction between galaxies
    • Jets of gas leave the galaxy
    • AGN is likely responsible for star formation
    • Galaxies turn off – why?
    • Try to reconstruct an interaction of galaxies over billions of years
  • ALMaQUEST – ALMA MaNGA Quenching & Star-Formation Survey
    • How mergers power starbursts?
    • Extra stars and extra gas
    • Studying post-merged galaxies
    • How do mergers trigger the birth of new stars?
    • AGN or starbursts when fuel is pulled into the centre of a galaxy
  • Q&A

Resumption of monthly meetings and speakers at UVic – Reg Dunkley

  • NEW EARTH Lab – Find Life on Exoplanets | RASC Victoria – Dr. Christian Marois, NRC, UVic
  • Oct 11th 7:30PM at Bob Wright Centre, Room A104, University of Victoria
  • Meeting will not be streamed, so please attend in-person
  • After the meeting, adjourn to the Elliott Building 4th floor Astronomy lounge for coffee, cookies and discussion
  • Lauri will have solar eclipse glasses to give to members

Annular Solar Eclipse – Oct 14, 2023 – Lauri Roche & David Lee

  • Solar Eclipse 2023 — Annular Eclipse, October 14 – Time & Date info page
    • Start: 8:03AM PDT
    • Maximum: 11:00AM PDT
    • End: 1:56PM PDT
  • Event at the Centre of the Universe
    • Observe the eclipse
    • Breakfast snacks supplied
    • Kids activities
    • Vignette talks
    • Event tickets on sale from FDAO through Eventbrite
    • Solar telescopes – dependant on RASC volunteers
    • Will supply solar eclipse glasses to attendees and other people hosting events can come to pick up the glasses
    • Best observing spot will likely be from the lower parking lot, not the Plaskett or Centre of the Universe parking lot
  • For observing yourself from other locations, seek a site with visibility to the east, low in the sky
  • Use solar eclipse glasses to directly observe the Sun, or use telescopes or binoculars with solar filters
  • Practice ahead of time
  • Discussion about timing and observing
  • Solar Eclipse Eye Safety – American Academy of Ophthalmology
  • RASC National 2023 calendars – Lauri has ordered 35 calendars, so contact her to sign up for a copy – roche.lauri@gmail.com

Victoria Centre Observatory (VCO) report – David Lee

  • 20″ Obsession – guiding working, collimation is near-perfect
  • 12″ Dobsonian also available
  • Takahashi – available to members for photography and visual observing
  • Discussion about parking issue at VCO – Garry Sedun

AstrophotosDave Payne

  • SH2-157 Lobster Claw nebula in narrowband
  • Shrimp nebula
  • Heart Nebula and beyond

Oct 16th is the next time to attend Astronomy Cafe – in two week’s time.