@renerpho.bsky.social
Reposted
I beg your pardon
@postoctobrist.bsky.social So someone in a server I'm in linked this... you now have an asteroid named for you, it seems.
December 16, 2025 at 1:22 AM
I beg your pardon
Reposted
Fun time doing and informal interview / discussion with Supercluster. Can read it here:
Inside the Daily Life of a Doomsday Asteroid Hunter
As the Senior Operations Specialist at the Catalina Sky Survey, a NASA-funded planetary defense program that utilizes the telescopes atop the Santa Catalina Mountains, David Rankin spends hours lookin...
www.supercluster.com
December 11, 2025 at 10:01 PM
Fun time doing and informal interview / discussion with Supercluster. Can read it here:
Reposted
Had a lot of fun hanging out with Cleo Abram for her new Huge If True episode on planetary defense. Check it out! 🔭
Humanity’s Real Plan to Stop This Asteroid (Feat. Mark Rober)
YouTube video by Cleo Abram
youtu.be
November 15, 2025 at 9:48 PM
Had a lot of fun hanging out with Cleo Abram for her new Huge If True episode on planetary defense. Check it out! 🔭
Our lightcurve of 2025 RL2 from last night shows that it is a fast rotator with a lightcurve amplitude of 0.7 mag. The asteroid is either tumbling with a main period of 4.36 minutes, or it has a complicated shape, resulting in a lightcurve with four peaks of different height and period 8.71 minutes.
September 20, 2025 at 12:10 AM
Our lightcurve of 2025 RL2 from last night shows that it is a fast rotator with a lightcurve amplitude of 0.7 mag. The asteroid is either tumbling with a main period of 4.36 minutes, or it has a complicated shape, resulting in a lightcurve with four peaks of different height and period 8.71 minutes.
Reposted
A preliminary orbit for the satellite of dwarf planet (136472) Makemake. Daniel Bamberger https://arxiv.org/abs/2509.05880
September 9, 2025 at 3:59 AM
A preliminary orbit for the satellite of dwarf planet (136472) Makemake. Daniel Bamberger https://arxiv.org/abs/2509.05880
Just did an interview with Frank Timmes for the AAS YouTube channel. I think it went really well! 🙂🧪🔭 We discussed our research note about resonances with Uranus (DOI 10.3847/2515-5172/aded08), and some future prospects. ✨
The video will come out in a few weeks at www.youtube.com/@AAStronomy/...
The video will come out in a few weeks at www.youtube.com/@AAStronomy/...
August 20, 2025 at 7:12 PM
Just did an interview with Frank Timmes for the AAS YouTube channel. I think it went really well! 🙂🧪🔭 We discussed our research note about resonances with Uranus (DOI 10.3847/2515-5172/aded08), and some future prospects. ✨
The video will come out in a few weeks at www.youtube.com/@AAStronomy/...
The video will come out in a few weeks at www.youtube.com/@AAStronomy/...
I am proud to announce that Northolt Branch Observatories have been awarded a 2025 Shoemaker NEO Grant by The Planetary Society! 🎉🔭🌠
www.planetary.org/articles/202...
www.planetary.org/articles/202...
August 14, 2025 at 10:34 PM
I am proud to announce that Northolt Branch Observatories have been awarded a 2025 Shoemaker NEO Grant by The Planetary Society! 🎉🔭🌠
www.planetary.org/articles/202...
www.planetary.org/articles/202...
I was reminded recently of some ideas a friend and I had for a paper, back in the days when 1I/'Oumuamua was discovered. There were already some interesting things floating around back then. Surely this stuff would get us into the New York Times nowadays. ⚗️💩🔭
August 14, 2025 at 1:34 AM
I was reminded recently of some ideas a friend and I had for a paper, back in the days when 1I/'Oumuamua was discovered. There were already some interesting things floating around back then. Surely this stuff would get us into the New York Times nowadays. ⚗️💩🔭
@keelingcurve.bsky.social This has just been announced by the International Astronomical Union. 🔭🧪✨
www.wgsbn-iau.org/files/Bullet...
www.wgsbn-iau.org/files/Bullet...
August 12, 2025 at 9:56 AM
@keelingcurve.bsky.social This has just been announced by the International Astronomical Union. 🔭🧪✨
www.wgsbn-iau.org/files/Bullet...
www.wgsbn-iau.org/files/Bullet...
I did not expect that our research note would attract this much interest. Happy to see the result being shared around!
www.universetoday.com/articles/sci...
www.universetoday.com/articles/sci...
Scientists Discover Uranus Has a Dancing Partner
Hidden in the darkness between Uranus and Neptune, a team of astronomers have discovered a small world locked in a million year gravitational waltz with Uranus. The asteroid enjoying this celestial da...
www.universetoday.com
July 18, 2025 at 9:44 PM
I did not expect that our research note would attract this much interest. Happy to see the result being shared around!
www.universetoday.com/articles/sci...
www.universetoday.com/articles/sci...
"Update: The DeTeCt project has announced that the flash was not seen in additional data, so there was no impact on Saturn."
www.newscientist.com/article/2487...
www.newscientist.com/article/2487...
July 10, 2025 at 8:33 PM
"Update: The DeTeCt project has announced that the flash was not seen in additional data, so there was no impact on Saturn."
www.newscientist.com/article/2487...
www.newscientist.com/article/2487...
Reposted
NEW VIDEO on an interstellar object hurtling through our solar system - youtu.be/VRHZUH0RcQ4
July 10, 2025 at 7:19 PM
NEW VIDEO on an interstellar object hurtling through our solar system - youtu.be/VRHZUH0RcQ4
Marc Delcroix reports a potential impact in Saturn captured in a few frames in a video observation obtained by Mario Rana. The very short impact flash occurred on Saturn on July 5th 2025, between 09:00 and 09:15 UT. He's looking for other videos to confirm. See here: pvol2.ehu.eus/pvol2/news/v...
July 6, 2025 at 10:26 PM
Marc Delcroix reports a potential impact in Saturn captured in a few frames in a video observation obtained by Mario Rana. The very short impact flash occurred on Saturn on July 5th 2025, between 09:00 and 09:15 UT. He's looking for other videos to confirm. See here: pvol2.ehu.eus/pvol2/news/v...
Reposted
FACT THREAD on New Interstellar Object #A11pl3Z
This story unfolded pretty fast yesterday for a few reasons. The object was discovered on July 1st UTC by the Asteroid Terrestrial-impact Last Alert System, or ATLAS team. A #NASA funded survey at the University of Hawaii. atlas.fallingstar.com 🔭🧪
This story unfolded pretty fast yesterday for a few reasons. The object was discovered on July 1st UTC by the Asteroid Terrestrial-impact Last Alert System, or ATLAS team. A #NASA funded survey at the University of Hawaii. atlas.fallingstar.com 🔭🧪
July 2, 2025 at 3:27 PM
FACT THREAD on New Interstellar Object #A11pl3Z
This story unfolded pretty fast yesterday for a few reasons. The object was discovered on July 1st UTC by the Asteroid Terrestrial-impact Last Alert System, or ATLAS team. A #NASA funded survey at the University of Hawaii. atlas.fallingstar.com 🔭🧪
This story unfolded pretty fast yesterday for a few reasons. The object was discovered on July 1st UTC by the Asteroid Terrestrial-impact Last Alert System, or ATLAS team. A #NASA funded survey at the University of Hawaii. atlas.fallingstar.com 🔭🧪
Some early reports about the candidate interstellar object A11pl3Z wrongly indicate that the object was discovered at Deep Random Survey (that's @astrafoxen.bsky.social , Sam Deen, me, and others).
I want to clarify that the object was found at ATLAS, Chile. I'm sorry for the unintended confusion.
I want to clarify that the object was found at ATLAS, Chile. I'm sorry for the unintended confusion.
July 2, 2025 at 3:00 PM
Some early reports about the candidate interstellar object A11pl3Z wrongly indicate that the object was discovered at Deep Random Survey (that's @astrafoxen.bsky.social , Sam Deen, me, and others).
I want to clarify that the object was found at ATLAS, Chile. I'm sorry for the unintended confusion.
I want to clarify that the object was found at ATLAS, Chile. I'm sorry for the unintended confusion.
Animation of the candidate interstellar object A11pl3Z passing through the inner Solar System.
Close approaches to planets:
Mars on 3 October 2025, at 0.187±0.003 au
Jupiter on 16 March 2026, at 0.396±0.016 au
Image credit: CSS, @asteroiddave.bsky.social 🔭
neofixer.arizona.edu/css-orbit-vi...
Close approaches to planets:
Mars on 3 October 2025, at 0.187±0.003 au
Jupiter on 16 March 2026, at 0.396±0.016 au
Image credit: CSS, @asteroiddave.bsky.social 🔭
neofixer.arizona.edu/css-orbit-vi...
July 2, 2025 at 12:42 PM
Animation of the candidate interstellar object A11pl3Z passing through the inner Solar System.
Close approaches to planets:
Mars on 3 October 2025, at 0.187±0.003 au
Jupiter on 16 March 2026, at 0.396±0.016 au
Image credit: CSS, @asteroiddave.bsky.social 🔭
neofixer.arizona.edu/css-orbit-vi...
Close approaches to planets:
Mars on 3 October 2025, at 0.187±0.003 au
Jupiter on 16 March 2026, at 0.396±0.016 au
Image credit: CSS, @asteroiddave.bsky.social 🔭
neofixer.arizona.edu/css-orbit-vi...
Precovery observations of the new interstellar object A11pl3Z from I41 show that its eccentricity is a bit lower than originally thought, only 6 instead of 10. It's still by far the highest we have ever seen. @astrafoxen.bsky.social @asteroiddave.bsky.social
July 2, 2025 at 4:54 AM
Precovery observations of the new interstellar object A11pl3Z from I41 show that its eccentricity is a bit lower than originally thought, only 6 instead of 10. It's still by far the highest we have ever seen. @astrafoxen.bsky.social @asteroiddave.bsky.social
Reposted
Here's our images of interstellar object #A11pl3Z from Deep Random Survey's 0.43-meter scope @ Chile. The telescope was following A11pl3Z's motion, so stars appear smeared. Weather got worse by the end, so still hard to tell if it's a comet.
600-sec exposures, from 2025 Jul 2, 00:42-01:23 UT
🔭☄️
600-sec exposures, from 2025 Jul 2, 00:42-01:23 UT
🔭☄️
July 2, 2025 at 3:07 AM
Here's our images of interstellar object #A11pl3Z from Deep Random Survey's 0.43-meter scope @ Chile. The telescope was following A11pl3Z's motion, so stars appear smeared. Weather got worse by the end, so still hard to tell if it's a comet.
600-sec exposures, from 2025 Jul 2, 00:42-01:23 UT
🔭☄️
600-sec exposures, from 2025 Jul 2, 00:42-01:23 UT
🔭☄️
Reposted
Hiya! Over the past few months I've been silently working on several astronomy projects. Here's what I've been up to lately! 🔭☄️🧪
1. I discovered a Kuiper belt object! (2013 CG269)
2. I'm coauthor of a brand new paper by @renerpho.bsky.social et al. on the rotation of asteroid Bradyharan!
(1/11)
1. I discovered a Kuiper belt object! (2013 CG269)
2. I'm coauthor of a brand new paper by @renerpho.bsky.social et al. on the rotation of asteroid Bradyharan!
(1/11)
June 21, 2025 at 2:17 AM
Hiya! Over the past few months I've been silently working on several astronomy projects. Here's what I've been up to lately! 🔭☄️🧪
1. I discovered a Kuiper belt object! (2013 CG269)
2. I'm coauthor of a brand new paper by @renerpho.bsky.social et al. on the rotation of asteroid Bradyharan!
(1/11)
1. I discovered a Kuiper belt object! (2013 CG269)
2. I'm coauthor of a brand new paper by @renerpho.bsky.social et al. on the rotation of asteroid Bradyharan!
(1/11)
Reposted
NEW: Astronomers have long predicted that the Andromeda Galaxy will one day crash into the Milky Way. Well, good news, future time travellers: scientists now think that the pull of a small, nearby galaxy might just save our galactic bacon.
Me for NatGeo www.nationalgeographic.com/science/arti...
Me for NatGeo www.nationalgeographic.com/science/arti...
Will the Milky Way crash into the Andromeda galaxy? Maybe not.
Astronomers have long thought that the Milky Way is headed for a head-on crash with its neighbor, Andromeda. But a new study complicates the story.
www.nationalgeographic.com
June 2, 2025 at 3:13 PM
NEW: Astronomers have long predicted that the Andromeda Galaxy will one day crash into the Milky Way. Well, good news, future time travellers: scientists now think that the pull of a small, nearby galaxy might just save our galactic bacon.
Me for NatGeo www.nationalgeographic.com/science/arti...
Me for NatGeo www.nationalgeographic.com/science/arti...
Looking at what I said about the possible lunar impact of 2024 YR4 in 2032, I made some claims in early February about its potential brightness and visibility, which I no longer agree with in light of what we've learned about the asteroid.
May 31, 2025 at 12:28 PM
Looking at what I said about the possible lunar impact of 2024 YR4 in 2032, I made some claims in early February about its potential brightness and visibility, which I no longer agree with in light of what we've learned about the asteroid.
Official statement alright... Does the new pope count?
May 8, 2025 at 8:31 PM
Official statement alright... Does the new pope count?
On this day in 1945, US troops liberated Dachau concentration camp.
My great-great-grandfather Hermann Willstumpf (1894-1958), a political prisoner since 1939, was being marched there from Straubing. The guards lost control around April 28, he escaped, and returned to his family weeks later.
My great-great-grandfather Hermann Willstumpf (1894-1958), a political prisoner since 1939, was being marched there from Straubing. The guards lost control around April 28, he escaped, and returned to his family weeks later.
April 29, 2025 at 7:35 PM
On this day in 1945, US troops liberated Dachau concentration camp.
My great-great-grandfather Hermann Willstumpf (1894-1958), a political prisoner since 1939, was being marched there from Straubing. The guards lost control around April 28, he escaped, and returned to his family weeks later.
My great-great-grandfather Hermann Willstumpf (1894-1958), a political prisoner since 1939, was being marched there from Straubing. The guards lost control around April 28, he escaped, and returned to his family weeks later.
Useless astronomy fact:
When you convert the characters in the names of 14400 Baudot and 850 Altona into unicode, you get
66, 97, 117, 100, 111, 116
65, 108, 116, 111, 110, 97
These have the same sum (607) and product (964456178400).
This is the only non-trivial pair of asteroids with that property.
When you convert the characters in the names of 14400 Baudot and 850 Altona into unicode, you get
66, 97, 117, 100, 111, 116
65, 108, 116, 111, 110, 97
These have the same sum (607) and product (964456178400).
This is the only non-trivial pair of asteroids with that property.
April 28, 2025 at 7:34 PM
Useless astronomy fact:
When you convert the characters in the names of 14400 Baudot and 850 Altona into unicode, you get
66, 97, 117, 100, 111, 116
65, 108, 116, 111, 110, 97
These have the same sum (607) and product (964456178400).
This is the only non-trivial pair of asteroids with that property.
When you convert the characters in the names of 14400 Baudot and 850 Altona into unicode, you get
66, 97, 117, 100, 111, 116
65, 108, 116, 111, 110, 97
These have the same sum (607) and product (964456178400).
This is the only non-trivial pair of asteroids with that property.