Nice! Thanks for sharing.

Emissions are all there in our ALMA data. The tail is behind the comet now; it’s just geometry of our viewpoint from Earth.

Now the geometry of our viewpoint from Earth is making us look onto its sun-side portion of the coma with the tail directly behind the comet nucleus. The speed is consistent with our expectations. We see emissions in our data. All good there as well, no need to panic.

Who said it was supposed to break up? The bluer color is due to enhanced CN emissions. Totally a comet.

It never disappeared from visibility. We were observing it with ALMA all along.

SIA/FNC with sufficiently detailed D plus sane priors (sigh!) and measure control.

Here try this: youtu.be/y-oQ44pQdCU

Especially when the 9 degree radius area covers the billion+ stars along the line of sight towards the galactic center.

👏

There are at least a dozen properties that point to a comet.

Yes!

I think it’s the inside of an event horizon.

I feel you. I really do. The grifters found a way of making money with Russell’s tea pot. But then there was also Giordano Bruno. 🤷‍♂️

Star Wars

I’d be curious to see their hardware and what kind of optics they’re operating. Whatever they do, I can tell you that the detectors for daytime and nighttime observations are fundamentally not very different, and it takes ‘only’ smart exposure stacking procedures to go between day and night.

Space observatories like JWST, HST, Swift and SphereX give us valuable information, sure, but we can also learn a lot more from the time domain and that will definitely not come from space due to pointing/slew restrictions and other pressure factors.

Wait, why can’t those observatories observe during the night? It’s just a matter of finding the right neutral density filter for the detector window. Looks like a spectacularly missed opportunity to me. Is there a website with optics/instrument specs? Can’t find anything on the official site.

Besides speculations our Stellar Spieler has not contributed *a single new data point* to our understanding of 3I/ATLAS. What’s going on with these Galileo Project observatories? What are these telescopes observing? Why aren’t we seeing 3I light curves and spectra? Talk is cheap.

I feel like we just cracked the door open to an incredibly diagnostic new population of objects. And we have ideas for how to harness this power. Stay tuned!