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Star Gazer News Star Gazer News Astronomy News for Bluewater Stargazers Vol 14 No.4 Jul/Aug 2020 Jul/Aug 2020 SGN Contents p 1: Messages from President and Editor p 2: Perseid Meteor Shower is back! Arecibo Observatory radar image of 2 km wide asteroid 1998 p 3: Mars may have had Rings! OR-2, which flew past Earth on April 29, 2020, seems to show p 4: More on Rings in our Solar System it wearing a coronavirus mask. But the asteroid’s uneven p 5: Four Major Greek Discoveries shape caused the illusion, scientists say. NASA/NSF image p 6: Greek Discoveries (cont’d) p 7: Two planets around Proxima Centauri From the Editor: p 8-9: Einstein Theory Confirmed Again p 10: Sky Sights: July/August ES Fox observing coming back slowly p 11: Jupiter and Saturn at Opposition in July After the Ontario government started slowly relaxing p 12: Constellation page: Leo, Major and Minor restrictions due to the Covid-19 pandemic, your BAS p 13: Miscellaneous Page and Classified executive contacted the Bluewater Education Foundation, p 14: Feature Image: Leo Triplet owners of the BOEC with a request to slowly re-start [Quetican Field of View will return next issue -ed] observing at the Fox Observatory. They agreed with our arguments about the Fox being a low-risk outdoor facility From “Pro Tem” President Eric: and our commitment to follow social distancing, hand Hi all. sanitization, etc., and have allowed BAS members (only) In this time of continuing change, we have all been isolating in hope that the tide will turn. It seems that we are now to start re-using the observatory. seeing some light, and with that there is the start of viewing from the ES Fox Observatory at the Bluewater Outdoor The first of those events, involving observing only from the Education Centre (BOEC). The Bluewater Education grounds around the Fox with no access to the interior Foundation has granted us access to the observatory for occurred on our scheduled viewing night June 20. viewing purposes. Being that we are still in the grips of the Notwithstanding the mosquitoes and late sunset (it was still Covid-19 pandemic, there are a few new procedures to not truly dark even at 10 pm) a small group of observers did follow when attending events at the Fox Observatory. take advantage of the dark sky site. The next viewing night will be July 18 for the oppositions of Jupiter and Saturn Access is still limited by provincial guidelines and the emergency act. That is to say as we are entering into Phase followed by Perseid meteor watching Tues Aug 11/12 (Note 2 of the reopening on Friday (June 12) the following can change of date). As we get into the summer, access to the occur. observatory will gradually be permitted as long as we follow simple health precautions. See the column by Eric I. on this Access to the outside of the Observatory is permitted and page explaining the protocols. the maximum number on the site is limited to 10. You must bring your own equipment at this time to view. There will be no sharing of equipment or use of equipment On arrival the leader of the observing session will have a inside the Fox Observatory. Please bring your own hand sign in book. You must sign in. sanitizer, and we recommend a mask. You may also wish to use gloves. Note at this time there will be no access to the inside of the Fox Observatory or any BOEC buildings. This means that If viewing is desired an email needs to be sent to me there are no washroom facilities available. at [email protected] . If there is at least 2 people then viewing can occur. Of course the maximum number is 10. Remember it is mosquito season. Self screening is essential. If you are not feeling well, have At the end of the session you must see the leader and sign a new cough, fever, or been asked to isolate, then please out. stay at home. Happy Observing and stay safe On arrival at the BOEC you need to go directly to the Eric Ingard Observatory as currently the rest of the site is off limits. S G N Astro News Jul/Aug 2020 pg 2 Disclaimer: SGN reports on the activities of the Bluewater BAS Executive 2020-2021 Astronomical Society (formerly Bruce County Astronomical President (interim): Eric Ingard [email protected] Society) but any opinions presented herein are not necessarily V-President (interim): Brett Tatton [email protected] endorsed by BAS. For up-to-date details relating to BAS Secretary: Lorraine Rodgers [email protected] Treasurer: Cheryl Dawson [email protected] events see the BAS website at www.bluewaterastronomy.com. Member-at-Large: Zoë Kessler [email protected] SGN is produced and edited by John Hlynialuk and I am solely Membership: Marian Ratcliffe [email protected] responsible for its content. I maintain a web presence at www.johns- Public Outreach: John Hlynialuk [email protected] astronomy.com. Your original articles, images, opinions, comments, observing Past Pres: John Hlynialuk [email protected] reports, etc., are welcome at SGN. I reserve the right to edit for brevity or clarity. Errors or omissions are entirely mine. I will not publish your emails or other materials without your specific permission. No part of this publication shall be reproduced in any form whatsoever without the editor’s consent. However, the Sky Events and Constellation pages are free to copy for non-commercial use. Feel free to forward this issue in its entirety to friends. You are welcome to email comments and/or submissions to [email protected] From “Retiring” President John As was announced at our last physical meeting in March, I there are limits on the sizes of groups. have decided to step back from president duties as of That is not to say that the exec has not been busy. May 31 and BAS has appointed a temporary president Organizing on-line meetings has fallen on the shoulders of Eric Ingard, to take on those duties until the next election both secretary Lorraine as host and Eric as chair of those in March of 2021. Brett Tatton was also appointed to take meetings. Brett has been busy communicating with his on the vice-presidential job vacated by Eric. I am staying contact at the national park as they gradually try to re- on exec as Public Outreach Chair, responsible for open. Unfortunately, group size restrictions make it promoting public events. impossible to hold astronomical viewing events and so our To some extent the reasons I had for stepping down annual “dark-in-the-park” weekend at the Bruce National have been declared moot by the Covid-19 pandemic since Park for July has been cancelled until next year. The post- many of the duties that would have been on the Labour Day Inverhuron weekend may or may not go ahead president’s plate have been cancelled or postponed. Even but it will be in modified form, and nothing is confirmed at the Public Outreach job is duty-free at this point since this point as staff gradually return to Ont. Provincial Parks. there are no public viewings (anywhere in Ontario) until Nothing, it seems is normal and I think we can expect possibly in September. In addition, astronomy programs more of the same until well into the fall. Hang in there for students at the Outdoor Ed Centre have been folks, stay safe! Enjoy the stars from your backyards! All cancelled as well. These may start up again in September, the best from the BAS exec and a sincere personal "Thank but we are not sure what form they will take, especially if you” for your support of this retiring president. Perseid Meteor Shower -from IMO International Meteor Organization Active from July 17th to August 26th, 2020 The Perseids are particles released from comet 109P/Swift-Tuttle during its numerous returns to the inner solar system. They are called Perseids since the radiant (the area of the sky where the meteors seem to originate) is located near the prominent constellation of Perseus. Shower details - Radiant: 03:12 +57.6° - ZHR: 100 - Velocity: (swift - 60km/s) Parent Object: 109P/Swift-Tuttle Peak - The Perseids will peak at 9 am EDT Aug 12, 2020 so Aug 11 or 12 are prime nights. The moon is LQ (43%). enough by 9:30 pm Aug 11 and the radiant is 16° above the NE horizon by then. Until the LQ moon rises at 12:30 am Perseid meteor viewing will be best on the nights of Aug Aug 12, there is a good 3 hour window to observe shooting 11-12, 2020. The official peak is 9 am EDT on Wed Aug 12 stars. The same applies the previous night, Aug 10-11 and in North America, so the previous night is closest to peak. also 12-13 (2.5 and 3.5 hour windows, respectively, before Aug 10/11 and 12/13 should be good as well. The RASC Moon rise). handbook gives 100 per hour as a peak rate but only under Make sure you give your camera a workout! Just mount it ideal conditions, -still you can expect about 50 to 60 per on a tripod, focus on infinity and set exposure to a minute hour around midnight on those nights. It should be dark or so, with a low ISO and fire away. S G N Mars with Rings? Jul/Aug 2020 pg 3 Mars May Have Had a Ring in Mars rings -artist the Past SETI Press Rel.
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