NOVANEWSLETTEROFTHEVANCOUVERCENTRERASC VOLUME2020ISSUE4JULYAUGUST2020 Barry Shanko 1960-2020 by Chris Gainor Barry Shanko, who served for in 1986 and served in that position fore his birthday on May 2, the cause more than three decades as Vancou- until 2016, when he was obliged to was deemed to be renal failure. ver Centre’s Speaker Coordinator, step down due to his need for kidney Barry graduated from John Oli- passed away unexpectedly at the end dialysis. In February last year, Barry ver Secondary School in Vancouver of April, just days before what would received a kidney transplant, and his in 1978, and studied electronics at have been his 60th birthday. Vancouver Community Col- The news of Barry’s passing lege and later writing at Lan- saddened many people at the gara College and Simon Fraser Vancouver Centre and else- University. where. “Barry had an amaz- Starting in 1994, his sci- ing talent for reaching up and ence writing appeared in catching the stars,” said Scott publications including Air McGillivray, who followed and Space Smithsonian, Barry as Speaker Coordina- Spaceflight, Quest: The His- tor. “He’d call up Nobel Prize tory of Spaceflight Quarterly, winners and the senior Astronomy Now, and space. researchers at , somehow com. As a technical writer, he convince them to visit our lit- produced online help guides, tle club in Vancouver.” user guides, training materi- Barry received the Van- als, iso/Work instructions couver Centre Appreciation and marketing materials. His Award in 1991 and 2008, and training manual won an award he was to receive the rasc at the 2009 competition of the President’s Award at the time of the improving health allowed him to re- Society for Technical Communica- 2020 Virtual General Assembly in turn to Vancouver Centre activities. tion, Canada West Chapter. June. After he died in his Marpole apart- Over the years, Barry lived with the He became Speaker Coordinator ment at the end of April, shortly be- continued on page 6

JULY 9 SFU SEPTEMBER 10 SFU A selection of short talks on astropho- Speaker TBA. See Meetup for up- tography followed by a Trivia Night. NO MEETING IN AUGUST dates. Details and Zoom link on Meetup. Is the Sun Getting More Active? by J. Karl Miller Recently (June 28), I set up June 28. if the force of the ejections are my Lunt solar-observations-on- The diameter of the Sun is 104 strong enough, this material will ly telescope (below—it contains times that of Earth. If you men- disperse into space. The Earth is the proper Hydrogen-alpha tally string 104 Earths across the often in the path of such materi- light filters to cut the sunlight Sun and compare the size of the al; northern and southern lights to the correct, safe level). I was prominences in the picture, it are one effect. There are also hoping to see some activity. In becomes obvious that the prom- interferences with wireless com- the last couple of years there has inences easily exceed the size of munications and power grids. been very little of that. We may the Earth. The hydrogen gas and Astronauts in space have to be just have gone through protected as much as a minimum of the elev- possible from this pow- en-year Sun cycle. The erful radiation. state of the solar cycle is I think that we are fi- determined by solar ob- nally entering the next servatories world-wide, solar cycle. The cycle counting the number of should actually have a sunspots over the years. 22 year length. When Looking through my sunspots appear as a solar telescope, the Sun pair, for instance, the did show a number of leading spot (in the prominences which had direction of the Sun’s also been absent for a rotation) could be mag- lengthy period. I did netic north polarity. not see any sunspots, The following spot in though. There were a the pair then has the few dark streaks; these south polarity. After are prominences which the next minimum oc- we see “from above.” curs, sunspots in the They are just like the next eleven year period ones we see at the Sun’s reverse their paired edge, but they originate relationship polarity on the surface away (south leading, north from the edge. They following). Nobody look darker because, as Lunt H-alpha telescope has a good explana- they move away from tion for the cause this the surface, they cool down and plasma of which the prominenc- characteristic. The next eleven- therefore emit a little less light. es are composed follow magnet- year period after the preceding This is obvious when looking at ic lines of force. Magnetism and two then exhibits sunspot pairs prominences at the edge of the its constant changes are a major with leading north and follow- Sun, which are also fainter than part of the Sun’s activity. I think ing south polarities again. Many the Sun’s surface. Here is a pic- of the Sun as a magnetized caul- other solar phenomena, such as ture I took of the Sun some years dron. Solar material is constant- solar flares, coronal loops, solar ago; it is similar to what I saw on ly being stirred and ejected and, continued on page 9

2 rasc-vancouver.com JULYAUGUST2020 President’s Message by Gordon Farrell When Vancouver Centre agreed business of the agm. And so it was with the featured speakers—Sara (back in late 2019) to host the that Hayley Miller and the rest of Seager, Bob McDonald, and astro- 2020 rasc GA, we couldn’t have the GA Committee began plan- naut Joshua Kutryk—but instead known what we were getting our- ning the event until it became clear of ballrooms and meeting halls, it selves into. The assumption was this would not be a typical GA was living rooms and webinars. We that this would be like other Gen- after all. But to their credit, the couldn’t all get together and remi- eral Assemblies, with fellow rasc entire team pivoted towards orga- nisce with our fellow astronomy members coming from across the nizing the first-ever Virtual GA. enthusiasts but it was still a success- country to attend lectures, see the The official business still happened ful event in these difficult times. sights, and go about the formal on the weekend of June 6th, along continued on page 4 About RASC The RASC Vancouver Centre meets at 7:30 to the Treasurer at the address below. Annual essarily those of the Vancouver Centre. PM on the second Thursday of every month at membership includes the invaluable Observer’s Material on any aspect of astronomy should SFU’s Burnaby campus (see map on page 4). Handbook, six issues of the RASC Journal, and, be e-mailed to the editor or mailed to the ad- Guests are always welcome. In addition, the of course, access to all of the club events and dress below. Centre has an observing site where star parties projects. Remember, you are always welcome to are regularly scheduled. For more information regarding the Centre attend meetings of Council, held on the first Membership is currently $89.00 per year and its activities, please contact our P.R. Director. Thursday of every month at 7:30pm in the Trot- ($52.00 for persons under 21 years of age; NOVA, the newsletter of the Vancouver tier Studio in the Chemistry wing of the Shrum family memberships also available) and can Centre, RASC, is published on odd-numbered Science Centre at SFU. Please contact a council be obtained online, at a meeting, or by writing months. Opinions expressed herein are not nec- member for directions.

2020 Vancouver Centre Officers President Gordon Farrell LPA Leigh Cummings Merchandise Kyle Dally [email protected] [email protected] [email protected] Vice-President Alan Jones Dir. of Telescopes Ken Arthurs Webmaster Ken Jackson [email protected] [email protected] [email protected] Secretary Suzanna Nagy Observing Robert Conrad, Ken Arthurs NOVA Editor Gordon Farrell [email protected] [email protected] [email protected] Treasurer Phil Lobo Membership Suzanna Nagy, Francesca Crema Speakers Scott McGilllivray [email protected] [email protected] [email protected] National Rep. Vacant Events Coord. Hayley Miller [email protected] [email protected] Past President Leigh Cummings Librarian William Fearon Education Robert Conrad, Andrew Krysa At Large Howard Trottier, Bill Burnyeat [email protected] [email protected] Public Relations Scott McGilllivray AOMO Alan Jones Honourary President J. Karl Miller [email protected] [email protected]

Library On the Internet Mailing Address The centre has a large library of books, rasc-vancouver.com RASC Vancouver Centre magazines and old NOVAs for your enjoy- astronomy.meetup.com/131/ PO Box 89608 ment. Please take advantage of this club www.facebook.com/RASC.Van 9000 University High Street service and visit often to check out the new www.instagram.com/rascvancouver/ Burnaby, B.C. purchases. Suggestions for future library @RASCVancouver V5A 4Y0 acquisitions are appreciated.

JULYAUGUST2020 rasc-vancouver.com 3 Map to Meeting Site

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So o uth w Cam e pus r Rd R d We will resume our physical lec- tures at SFU once is it deemed safe to do so. Burnaby Mtn Pkwy G a g Un la iv r er d sity i Dri W ve East a y continued from page 3 you’re interested in representing wanted to say a few words. Barry’s But there were many more speak- Vancouver Centre at the national contributions to the Vancouver ers that we had invited to speak at rasc level, please contact any Centre over the decades are hard the GA, so we planned an addi- Vancouver Centre council mem- to understate. As our Speakers Co- tional two weekends of streamed ber. Again, we thank Hayley for ordinator, he somehow found us lectures that finished up on June her work in this role. an impressive list of speakers both 21st. You can read the full details I’d also like to congratulate our local and international to come of the “GA Lite” on page 5 of this webmaster Ken Jackson on earn- and speak to our group of amateur issue. ing his Astroimager – Solar System astronomers and space enthusiasts. I’d like to congratulate Hay- certificate. This certificate requires We still don’t know how he con- ley Miller and the rest of the GA one to image the Sun, Moon, Ve- vinced all these people to come to Committee for effectively plan- nus, and at least two of Mars, Ju- talk to us but convince them he ning two events in quick succes- piter and Saturn (the latter two did. sion (the physical GA and the vir- including moons). Well done, Ken! We were all expecting the best tual one) and pulling it all off so I should also mention that the when Barry received his new kid- smoothly. Thanks toJanelle Berry, latest cancellations due to co- ney early last year. He had ex- Matthew Cimone, Charles Ennis, vid-19 are the two summer star pressed his desire to become more William Fearon, Ken Jackson, Jen- parties in BC, the Mt. Kobau Star active again in the Centre around nifer Kirkey, Pomponia Martinez, Party and the Merritt Star Quest. the middle of last year and had be- Jaymie Matthews, Ian McLennan, We look forward to these events gun to attend some of our lectures Marina Miller, Meredith Miller, resuming next summer. again so we were shocked and sad- Doug Montgomery, and Colleen On a more sombre note, we lost dened to learn of his passing. He O’Hare. An excellent job done by an important member of our Cen- will be missed by the members of all! tre in late April: Barry Shanko. our Centre both as a colleague and After putting in all this hard His friend Charles Ennis has writ- a friend. work, Hayley has also decided to ten a fitting tribute which you’ll Think of Barry the next time you step down as our National Rep- find on the front page of this is- look up at the stars. I’m sure he’d resentative, so we’re looking for sue, and Scott McGillivray shares join me in wishing you clear skies. someone to fill this position. If his thoughts on page 9, but I also 

4 rasc-vancouver.com JULYAUGUST2020 The RASC Virtual GA and GA Lite 2020 by RASC Vancouver GA Committee The pandemic forced the move to see them!” nator at Douglas College, followed of rasc’s annual General Assembly “My friend suggested that I check with a video welcome message that in- (GA) to an online event for the first this out...what an amazing way to cluded some First Nations perspective time in its history. As the 2020 hosts, spend a Sunday afternoon. I even and stories related to astronomy. rasc Vancouver Centre scrambled to got Sara’s the 2 Is this a planet? CSA Astronaut Joshua Kutryk, transform the two full days of in-per- questions right! Great program.” who completed his astronaut candi- son speakers and activities into a di- “It was about as perfect as could date training in January 2020, spoke to verse range of seventeen online talks: be Thanks Vancouver Centre!” approximately 20 youth in an intimate a Virtual GA and a series of “GA Lite” Zoom meeting that was streamed live webinars held over three weekends The video recordings in the rasc on YouTube. Joshua had been Cap- in June. The more business-oriented Vancouver YouTube GA playl- Com on the previous weekend for the Annual General Meeting (agm) was ist at https://www.youtube.com/ historic SpaceX Crew Dragon launch hosted online by rasc National later playlist?list=PLp4p--2i2yDC8xWh- and shared some of his thoughts on in the day on the same Sunday, June Hq9Jx56jejolu9WdS are now among the importance of that mission. He in- 7th as the Virtual GA. the most popular rasc videos with cluded behind-the-scenes photos and over 1100 views to date. told his story of why he became an as- What Happened at the Virtual GA The event kicked off with youth tronaut. Five lucky youth were able to The rasc Virtual General Assem- members and GA organizing com- ask him questions ranging from life in bly (GA) was held on June 7, 2020. It mittee members Marina and Mer- the solar system to astronaut training. was a huge success with over 200 at- edith Miller reading a beautiful letter Next was a fascinating talk by tendees for the 3-hour live stream on (page 8) from rasc’s viceregal patron, Professor Sara Seager, a Canadian- YouTube that generated enthusiastic Her Excellency the Right Honourable American astronomer and planetary comments like the following: , currently the Governor scientist known for her work on extra- “Thank you to the Vancouver General of Canada and a former Ca- solar planets and their atmospheres. rasc for a great afternoon of talks! nadian astronaut. David Seaweed, the Sara gave an engaging update on the I would have traveled to Vancouver Indigenous Student Services Coordi- continued on page 7

Membership has its Privileges! Are you tired of looking at the same • Weekly observing sessions at the ob- tunity to collaborate on observatory objects again and again (planets, moon, servatory or at dark sky locations research projects etc.)? Is your telescope collecting dust • One-one-one coaching on how to lo- • Updates on observable sky events because it’s hard to locate deep sky ob- cate thousands of objects in the night happening during the week like aster- jects? Would you like to bring your ob- sky oid/comet/deep sky conjunctions serving to a stellar level? Robert Conrad, • Attend small interactive seminars de- • Access to observing guides and lists our new observing director, revived the livered by Robert on a range of topics that Robert created that took hundreds Vancouver RASC observing group and including failsafe star-hopping, chart- of hours to create and will help with invites you to join by sending him an ing challenging objects and under- planning observing sessions email at [email protected]. standing the motions of the cosmos • Knowledge and expertise from other Some of the benefits of belonging to this • Learn to make your telescope dance observing group members group include: by locating objects such as asteroids, • Learn how to quickly and efficiently nova, and supernovae find and star-hop to deep sky objects • Hands on training on how to operate • Spectroscopy and imaging training using a range of binoculars and tele- the SFU Trottier observatory from Howard Trottier and an oppor- scopes

JULYAUGUST2020 rasc-vancouver.com 5 Upcoming Events August October December Merritt Star Quest CANCELLED 16 - 18 – Manning Park Dark Sky 10 – AGM Mt. Kobau Star Party CANCELLED Festival continued from page 1 Carolyn Porco, the Imaging Team He enjoyed watching Blue Jays base- ups and downs of the gig economy Leader for the Cassini spacecraft that ball with his late mother Dorrie, but and the tech industry in the Lower flew to Saturn, John Mather, the win- above all, he was a fan of the National Mainland. He worked for eight years ner of the 2006 Nobel Prize for Phys- Football League. Every Sunday in starting in 1999 at Alpha Technolo- ics, and on several occasions, Ray Vil- the fall he enjoyed cheering for the gies in Burnaby. In 2015, he started lard, the News Director for the Space Seattle Seahawks and any team that work at Star Solutions in Burnaby, Telescope Science Institute, home of was playing the Oakland/Los Ange- where he worked for the rest of his the Hubble Space Telescope. les Raiders. life. There, colleagues valued his writ- One of Barry’s favourite speakers Barry first became interested in ing for user guides. was Philip Klass, an Aviation Week & space while following the Apollo lu- While Barry was Speaker Coordi- Space Technology editor who was one nar landings in his youth, and later nator, he drew many speakers from of the world’s top skeptics of ufo he kept close track of space programs the Vancouver area such as ubc as- sightings. Klass managed to draw the world over. That ultimately drew trophysicist Jaymie Matthews and a full house when he spoke to the him to astronomy and the Vancou- John MacDonald, founder of Cana- Vancouver Centre in June 1994, even ver Centre. He also enjoyed making dian space contractor MacDonald though it was the same night the models of spacecraft, and he built up Dettwiler and Associates (). Vancouver Canucks played in Game a collection of science fiction movies. Armed with the Centre’s speak- 7 of the Stanley Cup finals. He was also known for his unique ers’ budget, Barry was able to attract There was no conflict that night sense of humour, which was anything speakers from the U.S., including for Barry, who wasn’t a hockey fan. but politically correct and was often expressed in the form of barbed com- ments about politicians of all politi- cal stripes and at all levels, including people who stood for office in the rasc. He leaves behind many friends in the Lower Mainland and in the world of space science, along with a brother, a sister and a niece. 

Chris Gainor was a member of the Vancouver Centre from 1992 through 1996. He became a friend of Barry’s during that time and served as Nova editor in 1996. Since then he has been a member of the Victoria Centre. Chris served as rasc National President Barry (left) in 1993 with Jim Bernath (centre), Chris Gainor (right) and Ken from 2018 to this year, much to Barry’s Harmon (top) disapproval.

6 rasc-vancouver.com JULYAUGUST2020 continued from page 5 C6EpYVx1VNwuAltCCh in astronomy—gravity waves and “Transiting Exoplanet Survey Satel- The June 13th GA Lite 1 webinar how gravity-based astronomy differs lite” (tess) mission. TESS is the next featured talks from rasc members from light-based astronomy. Michelle step in the search for planets outside living on the west coast. Ian McLen- Kunimoto developed the expertise for our solar system. Sara’s talk showed nan gave a fascinating account of his her talk on exoplanets by discovering attendees how the pattern matching career working at some of the best- 17 potential exoplanets while an un- ability of their human brains can aug- known planetariums in the world dergrad at ubc. Michelle continued ment computer algorithms in looking and an update on some new projects. researching exoplanets in her gradu- for dips in a star’s light curve. These Marina Miller informed attendees of ate work and passed her PhD defence dips suggest that a transiting exoplan- simple steps that Centres can take to on June 17—just four days before her et may have crossed the star’s face. reduce the environmental impact of GA lite talk—congratulations Dr We were grateful to have one of their activities. The mixing of social Kunimoto! The non-ubc contribu- Canada’s best-known science journal- causes and science is a key part of Matt tion came from rasc Vancouver’s ists, Bob McDonald, join us to com- Cimone’s life and was a key theme of Scott McGillivray who described how plete the program. His talk, “What his talk where he explained how dia- his regular Global TV segment on if Everything We Know is Wrong,” monds connected his charitable work space and astronomy came about and was a historical look at how science in Sierra Leone with his love of space shared tips on how to appeal to a wide has changed our view of the universe, and astronomy. Charles Ennis showed audience of TV viewers. demonstrating that the way we see it a variety of small observatories used GA Lite 4, our final webinar on with our five senses is wrong. We be- and built by amateur astronomers. June 21st, began with a practical ob- lieve you Bob—there is still a great Three talks with different themes serving talk from rasc Vancouver’s deal we haven’t figured out! Bob’s abil- were presented at GA Lite 2 on Sun- Robert Conrad and Andrew Krysa. ity to engage with the audience was day, June 14th. Chris Gainor, Randall Sharon Odell covered the historical apparent in the Q&A session that fol- Rosenfeld, and Peter Broughton talk- significance of the Dominion Obser- lowed his talk. ed about why we should be knowl- vatory in Ottawa, which opened in RASC Vancouver toques were pre- edgeable in the history of astronomy. 1905, and the work being done to pre- sented as gifts to each of the speakers Satellite mega-constellations, such as serve and restore it. Kurtis Baute’s talk and two door prizes were awarded to SpaceX’s Starlink satellites, are a time- started with how he measured the cir- attendees. Dave L from Halifax won ly topic and Fraser Cain described cumference of the Earth using sundi- an sqm-l sky quality meter donated their impact on astronomy and dif- als while biking in Saskatchewan and by Unihedron, and Terry B from the ficulties in mitigating that impact. ended with a focus on climate change Okanagan won an astrophoto donat- The LivingSky Guy, Tim Yaworski of and the observation that the Earth is ed by Matthew Cimone. rasc Saskatoon, ended the session small compared to its ability to sustain with an introduction to dslr astro- us all. What Happened at the GA Lite photography that included equip- We would like to thank all the Fourteen additional talks were ment, techniques, and many beautiful speakers, hosts, attendees, sponsors, given as part of the “GA Lite” series of examples. and volunteers for making the event webinars on the following two week- GA Lite 3 on June 20th was largely a great success. Despite the challenges ends, June 13th & 14th and 20th & a ubc science affair with two profes- of physical distancing, the Virtual 21st. Most talks were just 30 minutes sors and a recent PhD. The session GA and GA Lite enhanced the con- which kept the webinars focussed and started with Aaron Boley speaking nections between a diverse audience quick moving. The recorded videos about the issue of space debris and na- of astronomy enthusiasts from across can be viewed via the GA Lite playl- tional/international policies regarding Canada to reinforce Helen Sawyer ist at https://www.youtube.com/ debris. Jess McIver talked about one of Hogg’s message that “The Stars Belong playlist?list=PLp4p--2i2yDBtDa- the newest and most exciting advances to Everyone.” 

JULYAUGUST2020 rasc-vancouver.com 7 8 rasc-vancouver.com JULYAUGUST2020 Memories of Barry by Scott McGillivray Each of us has fond memories of rasc left the Space Centre in 2012, to meet celebrities... big names like our friend Barry Shanko; I’d like to I began driving Barry home to save Linda Spilker, William Borucki, share a few of mine. Barry was the him the hassle of returning to Mar- Nancy Chabot, Sara Seager, and first rasc member I met at my first pole via TransLink. I’d look forward Bob McDonald. Barry brought Thursday lecture night. It was Sep- to our conversation as much as the them to Vancouver, I just picked tember 10, 2009 at the Planetarium monthly lecture. Nobody I knew them up at the airport. and Barry stood out from everyone. was as informed as Barry in current Many of you will agree our He wasn’t a famous astronomer, but space and astronomy events. monthly lecture nights are the high- he was on a first name basis anyone In late 2016, Barry’s health forced light of what we do at rasc Van- who was. him to officially leave the role of couver. It was always Barry’s work. I joined council in 2011 and it Speaker’s Chair, which I took in My inbox has about a hundred was always exciting to hear from 2017. I figure it was a year before I emails from barryshanko@telus. Barry at the board meetings, the booked my first speaker. Barry was net. About twice a month he’d send many big names he had spoken with always behind the scenes filling a link from a science journal with and our upcoming guest speakers. the calendar with guests. While I’d something like, “I’ve been speaking Barry had a unique talent for reach- stress for weeks about calendar slots, with this research team, should we ing people in high places, somehow Barry could whip up emails to the ask them to come visit?” On those convincing senior researchers at right people and the next day we’d emails alone Barry has given us nasa and the nrc to visit Vancou- have a Nobel Prize recipient ready enough content to keep the lecture ver and speak at our events. When to visit Vancouver. I took the role nights going for years.  continued from page 2 Here is an excerpt from Wiki- 11 years, however, the peak radiation, etc. are all synchro- pedia: in the dipolar field lags the nized in some way with these peak in the sunspot number, magnetic changes. There are Solar cycle with the former occurring many reasonable theories, but The solar cycle or solar at the minimum between we have limited factual knowl- magnetic activity cycle is two cycles. Levels of solar edge about what happens inside a nearly periodic 11-year radiation and ejection of so- the Sun. The eleven-year cycle change in the Sun’s activity lar material, the number and has been observed for many measured in terms of varia- size of sunspots, solar flares, centuries (the last 400 years are tions in the number of ob- and coronal loops all exhibit quite well documented). served sunspots on the solar a synchronized fluctuation, Over the last 10 years, nasa’s surface. Sunspots have been from active to quiet to ac- Solar Dynamics Observatory, observed since the early 17th tive again, with a period of in a geostationary orbit around century and the sunspot time 11 years. This cycle has been Earth, has collected around 425 series is the longest, continu- observed for centuries by million gigabytes of data (one ously observed time series changes in the Sun’s appear- image every three quarters of of any natural phenomenon. ance and by terrestrial phe- a second, according to nasa). Accompanying the 11 year nomena such as auroras. This effort has contributed quasi-periodicity in sun- much to an increased knowledge spots, the large-scale dipolar If you have appropriate equip- of how the Sun interacts with magnetic field component ment—proper solar filters for Earth, and the solar system. of the Sun also flips every continued on page 10

JULYAUGUST2020 rasc-vancouver.com 9 continued from page 9 your general-purpose tele- scopes—or if you follow the rules of projecting the Sun onto a screen, you may want to check for the visible state of sunspots over the next years. warn- ing: Never look at the Sun directly without correct filters through telescopes, binoculars, or even the naked eye. Damage to the eye, possibly including blindness, can be a result, either instantly or as vision problems later in life. Solar observations and pho- tography are a great way to do astronomy—you can have your regular sleep hours; no need to stay awake for much of the night. There is much informa- tion about the Sun (and its ef- fects on the Earth) in the rasc’s Observer’s Handbook (starting on page 184 of the 2020 edi- tion). Try it, you might like it.  The Sun in H-alpha light Thanks to Our GA Lite Speakers

10 rasc-vancouver.com JULYAUGUST2020 Members’ Gallery by Gordon Farrell Venus and Pleiades Conjunction Venus is an oval rather than Venus The overexposed roof deck a bit before 9pm. Vancouver and the Pleiades as seen from my Venus 2020 conjunction of April 3, The A 0.6sec exposure at f/4 and ISO 5000 200mm using my Canon 5D Mark IV. which was roughly 50% at the time. a circle due to the phase of planet,

JULYAUGUST2020 rasc-vancouver.com 11 Saturn, Moon, and Jupiter Conjunction by Gordon Farrell An image from this past Sunday, July 5, 2020 of the conjunction of Saturn (uppper left) the Moon (centre) and Jupiter (upper right) from Vancouver at 11:30pm. A composite of two images shot at different exposures to capture the very bright Moon and the relatively dim planets. The Moon was a 1/30sec exposure and the planets were a 1sec exposure. Both images were f/16 at 800 ISO using a 70-200mm lens at 140mm on a Canon 5D Mark IV. The inset at the lower right is a close-up of Jupiter showing the moons (left) Callisto, Europa, and (right) Ganymede.