Last night was relatively fog free for the first time since I don't know when, so here's #Comet C/2025 R2 (SWAN). Slightly smeared because the stack is aligned on the stars. Asteroid 4 Vesta and NGC 6171 are also there, if you know where to look
(Canon G7 X, 210x5s, f/2.8 ISO 800 100mm EFL)
"Overall, Ryugu isn’t just a rock; it’s a probe into the Solar System’s wet youth..."
A new paper by Conway & Will has cited REBOUND:
Higher-order effects in the dynamics of hierarchical triple systems. III. Astrophysical implications of second-order and dotriacontapole terms https://ui.adsabs.harvard.edu/abs/2025PhRvD.111h3052C/abstract #nbody #astrodon
The Sword of Orion Region
Shot with the Dwarflab Dwarf3 smartscope. 40*30-second frames, Gain 60. Captured, stacked and processed in the Dwarf App. Additional processing in Adobe Lightroom on my Samsung S24 Ultra.
This star forming region lies around 1300 light years away, and contains the Orion Nebula (right) and Running Man Nebula (left).
Some background info on what MAVIS is, from Astronomy Australia Ltd's blog: https://astronomyaustralia.org.au/blog/news/mavis-a-bold-leap-in-australian-led-astronomy-and-adaptive-optics/
Once #Astrophotography equipment is capturing, I like to spend some time "in the moment". Staring in amazement at the universe & embracing #Nature around me.
This often includes complimentary, even ethereal, sounds. Sometimes I try to record it such as in this case.
Try it for yourself - play the audio on a loop and then engage the image. Looking at our #MilkyWay and beyond into the vastness of space. Imagine what is out there.
For me, this is peaceful & transcendent!
'Das Unsichtbare sichtbar machen' #FotoVorschlag
Die Drehung der Erde um ihre eigene Achse kann man relativ einfach sichtbar machen indem man in einer klaren Nacht eine Langzeitbelichtung des Sternenhimmels macht. Setzt man den Polarstern in die Mitte erkennt man leicht die konzentrischen Bahnen der Sterne, die durch die Drehung der Erde verursacht werden.
Schaut man genau hin kann man auch erkennen dass der Polarstern nicht genau die Erdachse markiert.
I am grateful for the #Hubble Space Telescope
📷 :https://esahubble.org/images/s82e5937/
#Astronomy #AstroDon #Space #science #NASA #ESA #astrophotography
TIL that even Martin Rees' papers have typos #Astrodon
A new paper by Schoettler & E Owen has cited REBOUND:
The impact of internal versus external perturbations on close-in exoplanet architectures https://ui.adsabs.harvard.edu/abs/2025arXiv251003401S/abstract #nbody #astrodon
The Pillars of Creation viewed by the James Webb Space Telescope
© NASA
#astrodon #NASA #photography
Perseverance Sol 1647, going uphill on the slopes of the rim of Jezero Crater
📷 https://areo.info/mars20/ecams/1647/ @areoinfo.bsky.social
🗺️ https://science.nasa.gov/mission/mars-2020-perseverance/location-map/
#Mars #Perseverance #rover #Sol1647 #geology #astrodon #space #NorthernRimCampaign #photography #map #PerseveranceRover #JezeroCrater
🥁 🥁 🥁 Endlich ist es so weit: Im dritten Teil ihrer Triologie erzählt Franzi heute, wie das erste Schwarze Loch gefunden wurde. Es war eine weite Reise, mit einer kuriosen Konferenz in Texas und einer Wette, die ausgerechnet Stephen Hawking am Ende verlor.
➡️ https://astrogeo.de/cygnus-x-1-wie-findet-man-ein-schwarzes-loch/
📷 : NASA/CXC/SAO
#astrodon #astronomie #weltraum #schwarzelöcher #blackhole #podcast #space
Santos-Sanz+ with “JWST occultation reveals unforeseen complexity in Chariklo’s ring system” - I’m fascinated by #exorings and seeing more activity and weirdness with small bodies in the Solar system gets me very intrigued indeed….. #astrosci #astrodon https://arxiv.org/abs/2510.06366
👀👀👀
Some really interesting ideas here (pre-print) from Michael Kramer and Simon Johnston (SJ works with us!).
Unlike the conventional concept of radio emissions in millisecond pulsars coming from polar caps, could they also be coming from regions where gamma-rays are emitted?!
If the idea is correct, then somehow the theorists are going to have to figure out how to get coherent emissions from outside the polar cap (which is gonna be fun). But if so we should see more MSPs!
Triton and Nereid -- is she more beautiful than Cassiopeia?? Cassiopeia thinks so!
Want to know more about the Nereids in #astronomy & #mythology -- check out our #podcast episode here: https://starrytimepodcast.podbean.com/e/asterism-the-nereids-in-astronomy-and-mythology/
📷 :https://www.metmuseum.org/art/collection/search/191844
#StarLore #astrodon #Met #Museum #Art #mastoArt #Sculpture #GreekMythology #mythology #Myths #AugusteRodin #Rodin
Me gusta estar en contacto con los desarrolladores de #apps.
Recién inicié un buen intercambio de experiencias con John Stephen, creador de #LuminosPro, una de las mejores aplicaciones para #astronomia que disfruto mucho de usar en el #iPadPro. Es probable que en un par de versiones mas, se pueda interconectar el #SeeStar a esta app, y controlarlo desde ahi. Por lo pronto, ya le di argumentos para comprarse un S30.
