Briefly: I post on the PUNCH mission, since Sungrazing comets are relevant (including ‘comets’- asteroids passing so close to the Sun that rock vaporizes and emits). Now, PUNCH is relevant for (barely) tracking 3I/ATLAS as it starts going behind the Sun… Read More »PUNCH Catches ATLAS Passage
Briefly: The Astronomer’s Telegram posts quick, short, straightforward notices… like telegrams! ATel#17416 www.astronomerstelegram.org/?read=17416Farnham, T. L. Feaga, L. M. Ye, Q. et al. Observations of an Asymmetric CN Coma in Interstellar Comet 3I/ATLAS 23 Sep 2025; 19:02 UT Cyanide and cyano-compounds… Read More »3I Cyan-Active ATLAS
The “issue” of Monthly Notices of the Royal Astronomical Society for September is posted. In it: Volume 542, Issue 1Kleshchonok, V. Sierks, H. Güttler, C. Inner coma of comet 67P/Churyumov–Gerasimenko during increased activity at perihelion on 2015 August 22–23 Pgs… Read More »Note, Paper: Part Departed, or Hardly?
The Planetary and Space Science issue for 1 Oct (vol. 265) includes: Gallot, T. Sedofeito, C. Ginares, A. et al. Seismic wave experiments in granular media with applications to asteroids Art 106153 .2025.106153Barbieri, C. Beolchi, A. Bertini, I. et al. Preparing for… Read More »Note, Paper: We Cover Pre-Recovery
In a few days: the “Cosmic Dust 15” meeting, in Osaka. https://www.cps-jp.org/~dust/Welcome.html Yes, dust. You know, the dust that is shed by comets, plus asteroids too (active asteroids, and the ejecta from impacts). The meteors you see in the night… Read More »Cosmic Dust Meeting 2025
The ATLAS papers haven’t stopped- plenty are rushing to get observations in before the comet goes behind the Sun as seen from Earth next month: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2509.07678[Submitted on 9 Sep 2025]Pérez-Couto, X. Torres, S. Villaver, E. et… Read More »ATLAS Pre-Pre-PRE-Covery
The details on our interstellar friend keep filling in, now that we have tracking over a nonnegligible observing arc: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2509.05181[Submitted on 5 Sep 2025]Gray, Z. Bagnulo, S. Borisov, G. et al. Extreme Negative Polarisation… Read More »ATLAS Keeps Tabs on ATLAS…
The observation/publication cycle is getting into a groove: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2509.02813[Submitted on 4 Sep 2025]Frincke, T. T. Yaginuma, A. Noonan, J. W. et al. Near-Discovery SOAR Photometry of the Third Interstellar Object: 3I/ATLAS arxiv.org/abs/2509.03361[Submitted on 4… Read More »3I/ATLAS Tracking
The joint Europlanet and AAS–DPS meeting, for this Tuesday (see also Day 1): https://www.epsc-dps2025.eu/ https://meetingorganizer.copernicus.org/EPSC-DPS2025/meetingprogramme Tuesday, 9 Sep SB10 Observing and modelling meteors in planetary atmospheres Cosmic dust in the heliosphere- Veerle Sterken CE4 Europlanet General Assembly TP8… Read More »2025 Joint EPSC-DPS Meeting, II
The characterization (and digitalization) continues: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2509.01647[Submitted on 1 Sep 2025]Salazar Manzano, L. E. Lin, H. W. Taylor, A. G. et al. Onset of CN Emission in 3I/ATLAS: Evidence for Strong Carbon-Chain Depletion And now,… Read More »3I Cyanide Tri-Described