ASTRO_R2
@astror2.bsky.social
Amateur astronomer. NASA Citizen Scientist. Brown dwarfs, White Dwarf IR variability, Large area surveys. Currently Lost in Galactic plane surveys... https://science.nasa.gov/people/arttu-sainio/
Reposted by ASTRO_R2
Shah+ on “The nature of ASASSN-24fw’s occultation” going for an exoring/exodisk explanation for the occulter with a minimum mass of 4 Jupiters for the companion #exoplanet #astrodon ☄
November 6, 2025 at 9:33 AM
Shah+ on “The nature of ASASSN-24fw’s occultation” going for an exoring/exodisk explanation for the occulter with a minimum mass of 4 Jupiters for the companion #exoplanet #astrodon ☄
Reposted by ASTRO_R2
‘An Overview of Exocomets’ is a very comprehensive review led by Daniela Iglesias started at an @issibern.ch meeting. I worked on Figure 1 detailing comets around the Sun, Beta Pic and a white dwarf - I’m very proud of it, and it is available on @github.com: Exocomet systems #astrodon #exoplanet ☄
November 12, 2025 at 8:32 AM
‘An Overview of Exocomets’ is a very comprehensive review led by Daniela Iglesias started at an @issibern.ch meeting. I worked on Figure 1 detailing comets around the Sun, Beta Pic and a white dwarf - I’m very proud of it, and it is available on @github.com: Exocomet systems #astrodon #exoplanet ☄
Winner winner, chicken dinner.
August 4, 2025 at 2:57 PM
Winner winner, chicken dinner.
And NO he is not outside alone without a leash. He has an outdoor cat house with entrance from sauna.
August 1, 2025 at 3:47 PM
And NO he is not outside alone without a leash. He has an outdoor cat house with entrance from sauna.
Leevi loves to get his belly brushed violently for 3 minutes. While he loses ~2 squirrels worth of hair. At three minutes and one second, the claws come out, so I have to be precise with the timing.
August 1, 2025 at 12:27 PM
Leevi loves to get his belly brushed violently for 3 minutes. While he loses ~2 squirrels worth of hair. At three minutes and one second, the claws come out, so I have to be precise with the timing.
SOON IN arXiv: "Is the Coma of Interstellar Object 3I/ATLAS Evidence of Exhaust Gas from an Alien Spacecraft?"
July 22, 2025 at 7:04 AM
SOON IN arXiv: "Is the Coma of Interstellar Object 3I/ATLAS Evidence of Exhaust Gas from an Alien Spacecraft?"
Maksetaan jo nyt Suomessa.
July 21, 2025 at 3:16 PM
Maksetaan jo nyt Suomessa.
Reposted by ASTRO_R2
Beautiful new results from my @stsci.edu colleagues Kielan Hoch and collaborators (on here: @mattkenworthy.bsky.social, @offallingstars.bsky.social , @bmacastro.bsky.social , @balmer.bsky.social) with JWST + MIRI www.theguardian.com/science/2025...
Astronomers left puzzled by high-altitude clouds forming on young planet
Experts say thick slabs of cloud in YSES-1 system could consist of mineral dust and iron, which would rain down
www.theguardian.com
June 10, 2025 at 4:42 PM
Beautiful new results from my @stsci.edu colleagues Kielan Hoch and collaborators (on here: @mattkenworthy.bsky.social, @offallingstars.bsky.social , @bmacastro.bsky.social , @balmer.bsky.social) with JWST + MIRI www.theguardian.com/science/2025...
Reposted by ASTRO_R2
An absolutely phenomenal result from this team! Using brand new LSSTCam data to precover 3I/ATLAS. Astonishing stuff, and a sign of excellent things to come from @vrubinobs.bsky.social
It's paper day! The first science paper with data from @vrubinobs.bsky.social's survey camera, the mighty LSSTCam, is a VERY quick turnaround of Rubin's observations thus far of interstellar comet 3I/ATLAS. ☄️
Chandler et al., submitted 🔭
A 🧵
Chandler et al., submitted 🔭
A 🧵
NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
We report on the observation and measurement of astrometry, photometry, morphology, and activity of the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS), with the NSF-DOE Vera C. Rubin ...
arxiv.org
July 21, 2025 at 6:53 AM
An absolutely phenomenal result from this team! Using brand new LSSTCam data to precover 3I/ATLAS. Astonishing stuff, and a sign of excellent things to come from @vrubinobs.bsky.social
Reposted by ASTRO_R2
New paper on arXiv, analyzing Rubin Observatory data of interstellar object 3I/ATLAS. This is the first science paper with data from LSSTCam!!!!!
arxiv.org/abs/2507.13409
arxiv.org/abs/2507.13409
NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
We report on the observation and measurement of astrometry, photometry, morphology, and activity of the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS), with the NSF-DOE Vera C. Rubin ...
arxiv.org
July 21, 2025 at 1:29 AM
New paper on arXiv, analyzing Rubin Observatory data of interstellar object 3I/ATLAS. This is the first science paper with data from LSSTCam!!!!!
arxiv.org/abs/2507.13409
arxiv.org/abs/2507.13409
Take the tail. If you are luck it gets cut off while the rest of the plane crashes in to a fireball inferno. Enjoy your flight!
July 20, 2025 at 10:15 AM
Take the tail. If you are luck it gets cut off while the rest of the plane crashes in to a fireball inferno. Enjoy your flight!
Toi on vähän monimutkainen ja siinä ollaan usein kieli keskellä suuta. Useammin kuulen kuitenkin puhuttavan "kuista". Ruskea kääpiö on määritelty massan perusteella, eikä kiertolaisuuden tai syntymekanismin, mikä muodostaa ristiriitoja muiden määritelmien kanssa.
July 15, 2025 at 1:58 PM
Toi on vähän monimutkainen ja siinä ollaan usein kieli keskellä suuta. Useammin kuulen kuitenkin puhuttavan "kuista". Ruskea kääpiö on määritelty massan perusteella, eikä kiertolaisuuden tai syntymekanismin, mikä muodostaa ristiriitoja muiden määritelmien kanssa.
Todennäköisemmin ruskean kääpiön kiertolaisen veden pitäisi juoksevana vuorovesivoima, joka pitäisi kivisen ytimen lämpimänä ja veden sulana. Ruskea kääpiön W1935:n spektrissä on havaittu mahdollisia viitteitä revontulista, joka voisi viitata vuorovaikutukseen kivisen kiertolaisen kanssa.
July 15, 2025 at 1:07 PM
Todennäköisemmin ruskean kääpiön kiertolaisen veden pitäisi juoksevana vuorovesivoima, joka pitäisi kivisen ytimen lämpimänä ja veden sulana. Ruskea kääpiön W1935:n spektrissä on havaittu mahdollisia viitteitä revontulista, joka voisi viitata vuorovaikutukseen kivisen kiertolaisen kanssa.
Reposted by ASTRO_R2
Ohhhhh 👀👀👀
Did something smack into Saturn a few days ago?
Amateur astrophotographers - check your data!
🔭🧪🪐
Did something smack into Saturn a few days ago?
Amateur astrophotographers - check your data!
🔭🧪🪐
Amplifying the call from Marc Delcroix and co. over the weekend: the team are looking to verify/refute a potential impact on #Saturn on July 5th, 09:00-09:15UT. Videos taken by amateur observers at that time might hold the key. This 📸 credit: Mario Rana
pvol2.ehu.eus/pvol2/news/v...
pvol2.ehu.eus/pvol2/news/v...
July 7, 2025 at 8:03 AM
Ohhhhh 👀👀👀
Did something smack into Saturn a few days ago?
Amateur astrophotographers - check your data!
🔭🧪🪐
Did something smack into Saturn a few days ago?
Amateur astrophotographers - check your data!
🔭🧪🪐
Reposted by ASTRO_R2
Today, *every* living prior leader of NASA's science directorate have released a joint letter condemning the proposed cuts to NASA science. These individuals every administration from Reagan to Biden, and all believe these cuts are insanely destructive: www.planetary.org/press-releas...
Every living NASA science chief unites in opposition to unprecedented…
The entire past leadership of NASA’s science activities have released a joint statement condemning the proposed 47% cuts proposed to the agency’s science…
www.planetary.org
July 7, 2025 at 9:11 PM
Today, *every* living prior leader of NASA's science directorate have released a joint letter condemning the proposed cuts to NASA science. These individuals every administration from Reagan to Biden, and all believe these cuts are insanely destructive: www.planetary.org/press-releas...
Reposted by ASTRO_R2
3I/ATLAS now recovered back to May 22 (mag 20.5 in g) in ZTF imagery, thanks Quanzhi Ye. In the latest MPEC
MPEC 2025-N51 : Comet 3I/ATLAS
We are the official body that deals with
astrometric observations and orbits of minor planets (asteroids) and comets.
minorplanetcenter.net
July 6, 2025 at 9:47 PM
3I/ATLAS now recovered back to May 22 (mag 20.5 in g) in ZTF imagery, thanks Quanzhi Ye. In the latest MPEC
Reposted by ASTRO_R2
Simulation of Images of Protoplanetary Disks After Collision with Free-floating Planets
astrobiology.com/2025/07/simu... #astrobiology #exoplanet #astronomy #StellarCartography
astrobiology.com/2025/07/simu... #astrobiology #exoplanet #astronomy #StellarCartography
Simulation of Images of Protoplanetary Disks After Collision with Free-floating Planets - Astrobiology
Observational manifestations of disturbances in a protoplanetary disk caused by a collision with a massive planet are studied.
astrobiology.com
July 5, 2025 at 4:55 PM
Simulation of Images of Protoplanetary Disks After Collision with Free-floating Planets
astrobiology.com/2025/07/simu... #astrobiology #exoplanet #astronomy #StellarCartography
astrobiology.com/2025/07/simu... #astrobiology #exoplanet #astronomy #StellarCartography
I think someone already speculated that they saw coma and someone saw faint tail. But we will see.
July 4, 2025 at 8:30 PM
I think someone already speculated that they saw coma and someone saw faint tail. But we will see.
Reposted by ASTRO_R2
Here's I3/ATLAS from the 0.8m at Mt Kent as of 1 hr ago. The clip is a 50-min sequence.
July 4, 2025 at 10:14 AM
Here's I3/ATLAS from the 0.8m at Mt Kent as of 1 hr ago. The clip is a 50-min sequence.
Oumuamua was an interstellar object (ISO), but particularly non-cometary.
July 4, 2025 at 4:00 PM
Oumuamua was an interstellar object (ISO), but particularly non-cometary.
"Todennäköisesti komeetalla" viitataan pölyiseen rakenteeseen, joka perustuu mahdollisesti havaittuun ydinhuntuun (Coma) tai pyrstöön. Kappaleesta irtoaa kenties kaasun tai pölyn sumua. Muu vaihtoehto on interstellaarinen asteroidi, joka on yhtenäisempää kivimateriaalia.
July 4, 2025 at 3:07 PM
"Todennäköisesti komeetalla" viitataan pölyiseen rakenteeseen, joka perustuu mahdollisesti havaittuun ydinhuntuun (Coma) tai pyrstöön. Kappaleesta irtoaa kenties kaasun tai pölyn sumua. Muu vaihtoehto on interstellaarinen asteroidi, joka on yhtenäisempää kivimateriaalia.
Reposted by ASTRO_R2
Mielenkiintoinen väikkäri: ”Oletus siitä, että niukkuudella olisi aktivoiva tai tehostava vaikutus on ristiriidassa sen tiedon kanssa, että niukkuus johtaa keskittymään päivästä toiseen pärjäämiseen, sanoo väitöskirjatutkija Elina Turunen Helsingin yliopistosta.” www.sttinfo.fi/tiedote/7092...
Haastavissa elämäntilanteissa elävät kaipaavat itsenäisyyttä ja tunnustusta | Helsingin yliopisto
Haastavissa tilanteissa elävillä ihmisillä on paljon omaan elämään liittyviä pyrkimyksiä, mutta esimerkiksi mahdollisuuksien puutteen, vähäisten voimavarojen tai niukkojen taloudellisten resurssien vu...
www.sttinfo.fi
April 11, 2025 at 7:32 PM
Mielenkiintoinen väikkäri: ”Oletus siitä, että niukkuudella olisi aktivoiva tai tehostava vaikutus on ristiriidassa sen tiedon kanssa, että niukkuus johtaa keskittymään päivästä toiseen pärjäämiseen, sanoo väitöskirjatutkija Elina Turunen Helsingin yliopistosta.” www.sttinfo.fi/tiedote/7092...
Reposted by ASTRO_R2
we’re observing uranus tonight as it passes in front of a fairly bright star. the plot in the upper left shows the star passing behind several rings. @mmtobservatory.bsky.social
April 8, 2025 at 2:15 AM
we’re observing uranus tonight as it passes in front of a fairly bright star. the plot in the upper left shows the star passing behind several rings. @mmtobservatory.bsky.social
Reposted by ASTRO_R2
SPHEREx, NASA’s latest space observatory, is targeting a March 8 liftoff, and the agency’s PUNCH heliophysics mission is sharing a ride.
Here’s what to expect during launch and beyond: spherex.caltech.edu/news/cosmic-...
Here’s what to expect during launch and beyond: spherex.caltech.edu/news/cosmic-...
Cosmic Mapmaker: NASA’s SPHEREx Space Telescope Ready to Launch
spherex.caltech.edu
March 8, 2025 at 1:29 AM
SPHEREx, NASA’s latest space observatory, is targeting a March 8 liftoff, and the agency’s PUNCH heliophysics mission is sharing a ride.
Here’s what to expect during launch and beyond: spherex.caltech.edu/news/cosmic-...
Here’s what to expect during launch and beyond: spherex.caltech.edu/news/cosmic-...