Viernes 13 y sábado 14 de agosto de 17 a 21 horas Tiempo Universal (14 a 18 horas Argentina).

La parte que habla Alberto es el viernes a las 16:20 hora local.

Por el canal de Youtube de ALPO:

The 2021 ALPO Virtual Conference

Due to the continuing issues caused by the Corovid-19 pandemic and another wave of infections, the 2021 Conference of the ALPO will be held online on Friday and Saturday, August 13th and 14th, 2021. The conference times will be from 1 p.m. to 5 p.m. Eastern Time (10 a.m. to 2 p.m. Pacific Time) on Friday, August 13th, and from 1 p.m. to 5 p.m. and 7 p.m. to 9 p.m Eastern Time (10 a.m. to 2 p.m.and 4 p.m. to 6 p.m. Pacific Time) on Saturday, August 14th.

Besides access via Zoom, the ALPO Virtual Conference is free and open to all and will be live-streamed on the ALPO YouTube channel at    

An advantage of Zoom access, however, is that attendees can participate with their own questions submitted via the Zoom group text chat feature. Those attendees using Zoom must already have it installed on their computer prior to the conference dates. Zoom is free and available at

The Zoom links for the ALPO conference will be posted on social media and e-mailed to ALPO members on Thursday, August 12th. There will be a separate Zoom meeting set up for each day. The Zoom virtual (online) meeting room will open 15 minutes prior to the beginning of each day’s activities.

The conference will cover various aspects of Earth-based observational solar system astronomy. Topics of papers and presentations include the following:

Friday 13-Aug

UT         ET         PT         Speaker/Topic

17:00     1:00     10:00     Julius Benton, Opening Remarks
17:15     1:15     10:15     Matt Will, Introduction to the ALPO
17:40     1:40     10:40     Jerry Hubbell, ALPO Exoplanet section
18:05     2:05     11:05     Rik Hill, The Start of Solar Cycle 25
18:30     2:30     11:30     John Rogers, Changes on Jupiter 2021
18:55     2:55     11:55     Break
19:20     3:20     12:20     Alberto Anunziato, Amateur studies of Lunar Wrinkle Ridges
19:45     3:45     12:45     Richard Schmude, General Talk on Photoelectric Photometry
20:20     4:20     1:20       Jim Tomney, Improving the searchability of sketches/images in the ALPO galleries
20:45     4:45     1:45       David Teske, In and About Palus Putredinis

Saturday 14-Aug

UT           ET         PT         Speaker/Topic
17:00     1:00     10:00     Tim Robertson Schedule updates and information for Day 2
17:15     1:15     10:15     Richard Schmude Recent Developments on the Remote Planets
17:40     1:40     10:40     Carl Hergenrother The ALPO Comets Section, recent observations.
18:05     2:05     11:05     Julius Benton Saturn Observations
18:30     2:30     11:30     Frank Melillo What’s up with Mercury
18:55     2:55     11:55     Break
19:20     3:20     12:20     Richard Schmude Recent Developments on Jupiter
19:45     3:45     12:45     Carl Hergenrother Planetary objects on coins and medals
20:20     4:20     1:20       Scott Harris What happens on the Moon doesn’t stay on the moon
20:45     4:45     1:45       Carl Hergenrother Closing Remarks
23:00     7:00     4:00       Awards and Keynote speaker Damian Peach

ALPO looks forward to presenting this conference free of charge and hopes that you will find these two days of presentations fascinating and well worth your time.

Matthew L. Will
Secretary and Treasurer
Association of Lunar and Planetary Observers (ALPO)
PO Box 13456
Springfield, IL  62791-3456  USA
Email addresses:
ALPO Web Site:

Sergio Babino

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