Association of Lunar & Planetary Observers
@alpo-astronomy.bsky.social
The Association of Lunar & Planetary Observers (ALPO) is an international organization devoted to study the Sun, Moon, planets, asteroids, meteors, and comets.
https://alpo-astronomy.org/
Observers Notebook
https://soundcloud.com/observersnotebook/
https://alpo-astronomy.org/
Observers Notebook
https://soundcloud.com/observersnotebook/
Don’t Miss the Show: The Geminids Light Up December 2025
In this episode of the Observers Notebook Podcast, host Tim Robertson welcomes Bob Lunsford, Meteor Coordinator for the Association of Lunar & Planetary Observers (ALPO), to discuss the upcoming Geminids Meteor Shower.
youtu.be/aHKShAqdiPM
In this episode of the Observers Notebook Podcast, host Tim Robertson welcomes Bob Lunsford, Meteor Coordinator for the Association of Lunar & Planetary Observers (ALPO), to discuss the upcoming Geminids Meteor Shower.
youtu.be/aHKShAqdiPM
The Observers Notebook- Don’t Miss the Show: The Geminids Light Up December 2025
YouTube video by Association of Lunar & Planetary Observers
youtu.be
November 16, 2025 at 1:34 AM
Don’t Miss the Show: The Geminids Light Up December 2025
In this episode of the Observers Notebook Podcast, host Tim Robertson welcomes Bob Lunsford, Meteor Coordinator for the Association of Lunar & Planetary Observers (ALPO), to discuss the upcoming Geminids Meteor Shower.
youtu.be/aHKShAqdiPM
In this episode of the Observers Notebook Podcast, host Tim Robertson welcomes Bob Lunsford, Meteor Coordinator for the Association of Lunar & Planetary Observers (ALPO), to discuss the upcoming Geminids Meteor Shower.
youtu.be/aHKShAqdiPM
The ALPO is looking for a Social Media volunteer to join our organization and work with the ALPO board on promoting us through all social media platforms.
Contact me for more details.
Contact me for more details.
November 13, 2025 at 2:12 AM
The ALPO is looking for a Social Media volunteer to join our organization and work with the ALPO board on promoting us through all social media platforms.
Contact me for more details.
Contact me for more details.
In this episode of The Observers Notebook Podcast, host Tim Robertson sits down with Alberto Anunziato, an ALPO Lunar Observer from Argentina. Together, they explore the fascinating intersection between art and science in lunar observation.
youtu.be/Z5UrBUt4WKI?...
youtu.be/Z5UrBUt4WKI?...
The Observers Notebook- Sketch or Science? The true value of Lunar Drawings
YouTube video by Association of Lunar & Planetary Observers
youtu.be
November 2, 2025 at 2:35 PM
In this episode of The Observers Notebook Podcast, host Tim Robertson sits down with Alberto Anunziato, an ALPO Lunar Observer from Argentina. Together, they explore the fascinating intersection between art and science in lunar observation.
youtu.be/Z5UrBUt4WKI?...
youtu.be/Z5UrBUt4WKI?...
@that-astro-chic.bsky.social
Hi Ashley! I host Observers Notebook (ALPO’s podcast) and would love to feature you for “Internships in Space Science—How to Find and Win Them.” 35–45 min on Zoom. Our audience is students/early-career folks + educators. Interested?—Tim (tim.robertson@alpo-astronomy.org
Hi Ashley! I host Observers Notebook (ALPO’s podcast) and would love to feature you for “Internships in Space Science—How to Find and Win Them.” 35–45 min on Zoom. Our audience is students/early-career folks + educators. Interested?—Tim (tim.robertson@alpo-astronomy.org
October 23, 2025 at 5:38 PM
@that-astro-chic.bsky.social
Hi Ashley! I host Observers Notebook (ALPO’s podcast) and would love to feature you for “Internships in Space Science—How to Find and Win Them.” 35–45 min on Zoom. Our audience is students/early-career folks + educators. Interested?—Tim (tim.robertson@alpo-astronomy.org
Hi Ashley! I host Observers Notebook (ALPO’s podcast) and would love to feature you for “Internships in Space Science—How to Find and Win Them.” 35–45 min on Zoom. Our audience is students/early-career folks + educators. Interested?—Tim (tim.robertson@alpo-astronomy.org
Join Carl Hergenrother and I on this special edition of the Observers Notebook Podcast, as we discuss three very interesting comets that are currently racing towards the sun, Comet C/2025 A6 (Lemmon), C/2025 R2 (SWAN), and the fascinating interstellar object, 3I/ATLAS.
youtu.be/0SQGnfXDjcs?...
youtu.be/0SQGnfXDjcs?...
The Observers Notebook - New Cometary Visitors: Predictions and Observing Opportunities
YouTube video by Association of Lunar & Planetary Observers
youtu.be
October 4, 2025 at 7:46 PM
Join Carl Hergenrother and I on this special edition of the Observers Notebook Podcast, as we discuss three very interesting comets that are currently racing towards the sun, Comet C/2025 A6 (Lemmon), C/2025 R2 (SWAN), and the fascinating interstellar object, 3I/ATLAS.
youtu.be/0SQGnfXDjcs?...
youtu.be/0SQGnfXDjcs?...
In this episode of the Observers Notebook podcast, host Tim Robertson talks to the Director of Astronomy Outreach for the International Astronomical Union, Kelly Blumenthal.
youtu.be/3IGeHUg-iAw
youtu.be/3IGeHUg-iAw
The Observers Notebook- Kelly Blumenthal, IAU Astronomy Outreach
YouTube video by Association of Lunar & Planetary Observers
youtu.be
October 2, 2025 at 12:22 AM
In this episode of the Observers Notebook podcast, host Tim Robertson talks to the Director of Astronomy Outreach for the International Astronomical Union, Kelly Blumenthal.
youtu.be/3IGeHUg-iAw
youtu.be/3IGeHUg-iAw
John ONeal NC Stargazer came on the podcast and we discussed the upcoming Total Lunar Eclipse!
Look for that episode to drop on March 1!
Look for that episode to drop on March 1!
February 27, 2025 at 12:35 AM
John ONeal NC Stargazer came on the podcast and we discussed the upcoming Total Lunar Eclipse!
Look for that episode to drop on March 1!
Look for that episode to drop on March 1!
Reposted by Association of Lunar & Planetary Observers
Good visualization from @esa.int of the shrinking uncertainties in the impact probability of asteroid 2024 YR4, as more observations of the orbit continue.
☄️ 🔭 The impact probability of asteroid 2024 YR4 has dropped from 2.8% to 0.16%.
Thanks to new observations, Earth is now at the edge of our shrinking ‘uncertainty window.’
If this trend continues, the risk may soon reach 0%.
Thanks to new observations, Earth is now at the edge of our shrinking ‘uncertainty window.’
If this trend continues, the risk may soon reach 0%.
February 21, 2025 at 2:35 PM
Good visualization from @esa.int of the shrinking uncertainties in the impact probability of asteroid 2024 YR4, as more observations of the orbit continue.
Reposted by Association of Lunar & Planetary Observers
There, there. Don't you fret. Just seven more years and it'll all be over.
YR4: the asteroid with a tiny chance of hitting Earth
The asteroid named YR4 has a 1% chance of hitting Earth in 2032
www.bbc.com
February 3, 2025 at 7:51 PM
There, there. Don't you fret. Just seven more years and it'll all be over.
Reposted by Association of Lunar & Planetary Observers
Nature had the conditions to "cook up" the chemical precursor ingredients for life before Earth formed, according to studies published by the sample analysis team of NASA's OSIRIS-REx mission, which is led by LPL's Regents Professor Dante Lauretta. news.arizona.edu/news/asteroi...
Asteroid Bennu comes from a long-lost salty world with ingredients for life | University of Arizona News
Two research publications by the OSIRIS-REx sample analysis team suggest that conditions for the emergence of life were widespread across the early solar system.
news.arizona.edu
January 29, 2025 at 9:23 PM
Nature had the conditions to "cook up" the chemical precursor ingredients for life before Earth formed, according to studies published by the sample analysis team of NASA's OSIRIS-REx mission, which is led by LPL's Regents Professor Dante Lauretta. news.arizona.edu/news/asteroi...
Reposted by Association of Lunar & Planetary Observers
Hubble's View of Jupiter and Europa in August 2020.
🔭 🧪
🔭 🧪
January 29, 2025 at 7:36 PM
Hubble's View of Jupiter and Europa in August 2020.
🔭 🧪
🔭 🧪
Reposted by Association of Lunar & Planetary Observers
🔭 We're closely monitoring the recently discovered asteroid #2024YR4. The #asteroid has an almost 99% chance of safely passing Earth in 2032, but a possible impact cannot yet be entirely ruled out. 2024 YR4 is estimated to be between 40 m and 100 m wide.
ESA actively monitoring near-Earth asteroid 2024 YR4
The European Space Agency (ESA) Planetary Defence Office is closely monitoring the recently discovered asteroid 2024 YR4, which has a very small chance of impacting Earth in 2032. This page was l...
www.esa.int
January 29, 2025 at 4:09 PM
Reposted by Association of Lunar & Planetary Observers
:) The bright star on the right is Saturn, Comet ATLAS in the middle and above the tree, the small fuzzy object is the Small Magellanic Cloud, a satellite galaxy to our own Milky Way galaxy.
Photo taken 21/1/25 at the cattle Sales Yard, Monto, Queensland.
#comet #astronomy #astrophotography
Photo taken 21/1/25 at the cattle Sales Yard, Monto, Queensland.
#comet #astronomy #astrophotography
January 21, 2025 at 1:07 PM
:) The bright star on the right is Saturn, Comet ATLAS in the middle and above the tree, the small fuzzy object is the Small Magellanic Cloud, a satellite galaxy to our own Milky Way galaxy.
Photo taken 21/1/25 at the cattle Sales Yard, Monto, Queensland.
#comet #astronomy #astrophotography
Photo taken 21/1/25 at the cattle Sales Yard, Monto, Queensland.
#comet #astronomy #astrophotography
Reposted by Association of Lunar & Planetary Observers
Astronomers have discovered one of the earliest supernovae yet and found that exploding stars may have contributed to the enrichment of the young universe. buff.ly/42oNNMk
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#astronomy #supernova #cosmology
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#astronomy #supernova #cosmology
Supernovae May Have Shaped the Early Universe, Webb Finds
Astronomers have spotted one of the earliest supernovae yet and found that exploding stars helped enrich the young universe with heavy elements.
buff.ly
January 21, 2025 at 3:46 PM
Astronomers have discovered one of the earliest supernovae yet and found that exploding stars may have contributed to the enrichment of the young universe. buff.ly/42oNNMk
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#astronomy #supernova #cosmology
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#astronomy #supernova #cosmology
Reposted by Association of Lunar & Planetary Observers
UA HiRISE (@uahirise.bsky.social) on Flickr (May 4, 2010)
This image presents a detailed view of a Martian landscape, highlighting various geological features as captured by the HiRISE camera aboard the Mars Reconnaissance Orbiter.
flic.kr/p/ef33PW
This image presents a detailed view of a Martian landscape, highlighting various geological features as captured by the HiRISE camera aboard the Mars Reconnaissance Orbiter.
flic.kr/p/ef33PW
January 21, 2025 at 5:31 PM
UA HiRISE (@uahirise.bsky.social) on Flickr (May 4, 2010)
This image presents a detailed view of a Martian landscape, highlighting various geological features as captured by the HiRISE camera aboard the Mars Reconnaissance Orbiter.
flic.kr/p/ef33PW
This image presents a detailed view of a Martian landscape, highlighting various geological features as captured by the HiRISE camera aboard the Mars Reconnaissance Orbiter.
flic.kr/p/ef33PW
