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July 2020 in This Issue Online Readers, ALPO Conference November 6-7, 2020 2 Lunar Calendar July 2020 3 Click on Images an Invitation to Join ALPO 3 for Hyperlinks

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July 2020 in This Issue Online Readers, ALPO Conference November 6-7, 2020 2 Lunar Calendar July 2020 3 Click on Images an Invitation to Join ALPO 3 for Hyperlinks A publication of the Lunar Section of ALPO Edited by David Teske: [email protected] 2162 Enon Road, Louisville, Mississippi, USA Recent back issues: http://moon.scopesandscapes.com/tlo_back.html July 2020 In This Issue Online readers, ALPO Conference November 6-7, 2020 2 Lunar Calendar July 2020 3 click on images An Invitation to Join ALPO 3 for hyperlinks. Observations Received 4 By the Numbers 7 Submission Through the ALPO Image Achieve 4 When Submitting Observations to the ALPO Lunar Section 9 Call For Observations Focus-On 9 Focus-On Announcement 10 2020 ALPO The Walter H. Haas Observer’s Award 11 Sirsalis T, R. Hays, Jr. 12 Long Crack, R. Hill 13 Musings on Theophilus, H. Eskildsen 14 Almost Full, R. Hill 16 Northern Moon, H. Eskildsen 17 Northwest Moon and Horrebow, H. Eskildsen 18 A Bit of Thebit, R. Hill 19 Euclides D in the Landscape of the Mare Cognitum (and Two Kipukas?), A. Anunziato 20 On the South Shore, R. Hill 22 Focus On: The Lunar 100, Features 11-20, J. Hubbell 23 Recent Topographic Studies 43 Lunar Geologic Change Detection Program T. Cook 120 Key to Images in this Issue 134 These are the modern Golden Days of lunar studies in a way, with so many new resources available to lu- nar observers. Recently, we have mentioned Robert Garfinkle’s opus Luna Cognita and the new lunar map by the USGS. This month brings us the updated, 7th edition of the Virtual Moon Atlas. These are all wonderful resources for your lunar studies. This month, The Lunar Observer features Jerry Hubbell’s Focus On article, Lunar 100, Features 11-20. This has proven to be an incredibly popular series! My new page By the Numbers (page 7) tells of 34 ob- servers submitting 215 lunar observations for this issue. Many of those images grace these pages, and all are in the ALPO Lunar Image Gallery. Also be sure to check out page 10, the 2020 ALPO Walter H. Haas Observer’s Award. All this, plus articles by Alberto Anunziato, Rik Hill, Howard Eskildsen and Tony Cook. Enjoy and be safe. The Lunar Observer/July 2020/ 1 ALPO Conference November 6-7, 2020 Interested parties are hereby invited to submit papers and research posters on the astronomy-related topics of their choice for presentation at the next ALPO conference to be held jointly with the Georgia Regional As- tronomers Meeting (GRAM) when that group meets on November 6 and 7, 2020. This will be the second time the ALPO has participated with the GRA group, the first time being the autumn of 2017. Like last time, the was made after an online discussion and vote by the ALPO board of directors. This year's conference will be at North Georgia College in Dalton, Georgia, approximately a one-and-a-half- hour drive north of downtown Atlanta. The ALPO portion of the conference will commence with the ALPO board meeting on Friday, November 6, to be followed by an informal gathering that evening with a lecture, social gathering with snacks and observing at the school’s on-campus observatory. All papers will be presented the following day, Saturday, November 7, between 9 a.m. and 5 p.m. Also as we did in 2017, there will be an ALPO dinner on Saturday evening where the Walter Haas Observ- ing Award and the Peggy Haas Service Award will be presented. We have been allotted up to at least four (4) time slots for ALPO papers of no more than 15 minutes in length; the preferred method is 12 minutes for the paper presentation plus 3 minutes for follow-up questions. The preferred format is Microsoft PowerPoint. We have also been invited to participate with wall-mounted research posters which are also commonly done at academic and professional conferences everywhere. Participants are encouraged to submit research papers, presentations, and experience reports concerning var- ious aspects of Earth-based observational astronomy. Suggested topics for papers and presentations include the following: • New or ongoing observing programs and studies, specifically, how those programs were designed, im- plemented and continue to function. • Results of personal or group studies of solar system or extra-solar system bodies. • New or ongoing activities involving astronomical instrumentation, construction or improvement. Challenges faced by Earth-based observers such as changing interest levels, deteriorating observing condi- tions brought about by possible global warming, etc. A hard-copy version of your paper should be made available for future web site publication. More details about paper presentations and to whom they should be sent will be published in the Summer issue of the ALPO Journal for release in early June. The Lunar Observer/July 2020/ 2 Lunar Calendar July 2020 Date Time UT Event July 2020 5 Moon greatest southern declination -24.1o 5 0444 Full Moon 5 2200 Jupiter 1.9o north of Moon 6 0900 Saturn 2o north of the Moon 6 East limb most exposed +5.0o 11 North limb most exposed +6.8o 11 2000 Mars 2.0o north of the Moon 12 1900 Moon at apogee 404,199 km 12 2329 Last Quarter Moon 17 0700 Venus 3o south of the Moon 19 West limb most exposed -5.4o 19 Moon greatest northern declination +23.9o 20 1733 New Moon Lunation 1207 25 South limb most exposed -6.7o 25 0500 Moon at perigee 368,361 km 27 1232 First Quarter Moon The Lunar Observer welcomes all lunar related images, drawings, articles, reviews of equipment and reviews of books. You do not have to be a member of ALPO to submit material, though membership is highly encouraged. Please see below for membership and near the end of The Lunar Observer for submission guidelines. Comments and suggestions? Please send to David Teske, contact information page 1. Need a hard copy, please contact David Teske. AN INVITATION TO JOIN THE A.L.P.O. The Lunar Observer is a publication of the Association of Lunar and Planetary Observers that is available for access and participation by non- members free of charge, but there is more to the A.L.P.O. than a monthly lunar newsletter. If you are a nonmember you are invited to join our organization for its many other advantages. We have sections devoted to the observation of all types of bodies found in our solar system. Section coordinators collect and study members’ observations, correspond with observers, encourage beginners, and contribute reports to our Jour- nal at appropriate intervals. Our quarterly journal, The Journal of the Association of Lunar and Planetary Observers-The Strolling Astronomer, contains the results of the many observing programs which we sponsor including the drawings and images produced by indi- vidual amateurs. Additional information about the A.L.P.O. and its Journal is on-line at: http://www.alpo-astronomy.org. I invite you to spend a few minutes browsing the Section Pages to learn more about the fine work being done by your fellow amateur astronomers. To learn more about membership in the A.L.P.O. go to: http://www.alpo- astronomy.org/main/member.html which now also provides links so that you can enroll and pay your membership dues online. The Lunar Observer/July 2020/ 3 Lunar Topographic Studies Acting Coordinator – David Teske - [email protected] Assistant Coordinator – William Dembowski - [email protected] Assistant Coordinator – Jerry Hubbell – [email protected] Assistant Coordinator-Wayne Bailey– [email protected] Website: http://moon.scopesandscapes.com/ Observations Received Name Location and Organization Article/image Aylen Borgatello Alaniz AEA - Oro Verde, Entre Rios, Ar- Image of Messier (2), Proclus and gentina Plato. Jay Albert Lake Worth, Florida, USA Images of Aristarchus, Gassendi (2), Sinus Iridum and drawing of Posido- nius. Alberto Anunziato Paraná, Argentina, SLA Article and drawing Euclides D in the Landscape of Mare Cognitum (and Two Kipukas?), images of Peta- vius (2), Aristarchus (2), Gassendi (3), Sinus Iridum (2) and Vallis Alpes Jorge. Arranz Lunar Group of the Madrid Astro- Drawing of Gassendi. nomical Association (AAM), Ma- drid, Spain Sergio Babino Montevideo, Uruguay Image of Tycho, Proclus, Gassendi, Vallis Schröteri (3), Mare Serenita- tis (2), Vallis Alpes and Posidonius. Francisco Alsina Cardinalli Oro Verde, Argentina, SLA Images of Aristarchus (7), Proclus (6), Gassendi, Sinus Iridum, Rupes Recta (3), Vallis Schröteri (4), Mare Serenitatis (4), Vallis Alpes and Po- sidonius (2). Jairo Chavez Popayán, Colombia, SLA Image of Gassendi, Sinus Iridum, Vallis Schröteri and Mare Serenitatis Abel David Emiliano Gonzalez Cian AEA - Oro Verde, Entre Rios, Ar- Image of Aristarchus, Mare Crisium, gentina Langrenus and Petavius. Leonardo Alberto Colombo Córdoba, Argentina Image of the waxing gibbous Moon. Michel Deconinck Aquarellia Observatory, south France Sketches and pastels of Aristarchus, Proclus, Gassendi, Sinus Iridum, Straight Wall, Petavius, Schröter’s Valley, Dark Edges of Mare Sereni- tatis, Alpine Valley and Posidonius. Walter Ricardo Elias AEA - Oro Verde, Entre Rios, Ar- Image of Mons Piton (2), Aristar- gentina chus, Deslandres and Plato. Desiré Godoy Oro Verde, Argentina, SLA Image of Aristarchus, Proclus and Gassendi. Many thanks for all these observations, images, and drawings. The Lunar Observer/July 2020/ 4 Name Location and Organization Article/image Eskildsen, Howard Ocala, Florida, USA Article and image Musing on The- ophilus, Northern Moon, Northwest Moon and Horrebow, image of Mons Rumker, Marius, Lichtenberg, Gri- maldi and Sirsalis. Fernando Gimenez Montevideo, Uruguay Image of Tycho. Fernando Gomez Montevideo, Uruguay,SAO Image of Sinus Iridum. Martín Queirolo Gomez Montevideo, Uruguay, SAO Image of Proclus, Sinus Iridum (2) and Mare Serenitatis (2) and Rupes Recta Marcelo Mojica Gundlach Cochabamba, Bolivia, SLA Image of Gassendi, Sinus Iridum, Mare Serenitatis and Vallis Alpes (3).
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