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Re:Mystery of interstellar visitor 'Oumuamua gets trickier by sandworm101 on Saturday August 22, 2020 @10:27AM (#24244350)
If we put half the energy we use up arguing about Oumuamua into detecting more interstellar objects we would have the data to end this debate.

I'm a fan of the pragmatic mathematical approach. This was the first thing detected. The chances that the first result is also any sort of outlier are very slim. Detect and track some more of these objects. I'd bet good money that Oumuamua's motion is very explainable once we get some better data from other, similar, objects.

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by themgt on Saturday August 22, 2020 @10:43AM (#24244460)
> If we put half the energy we use up arguing about Oumuamua into detecting more interstellar objects we would have the data to end this debate

This HN comment was just the motivation I needed to get off my computer and rededicate myself to polishing eighteen 1.32m gold-plated beryllium hexagonal mirror segments.

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by coolspot on Saturday August 22, 2020 @03:19PM (#24246530)
I know you are joking, but a second interstellar object after the Oumuamua was discovered using a 0.65m DIY telescope built by Gennadiy Borisov.

https://en.m.wikipedia.org/wiki/2I/Borisov

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by Nicksil on Saturday August 22, 2020 @06:53PM (#24247924)
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by sandworm101 on Saturday August 22, 2020 @10:56AM (#24244541)
You don't need the telescope. There is an effort to discover interstellar objects in old data, which is largely a matter of spotting faint objects and calculating thier orbits...ie coding.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by pavel_lishin on Saturday August 22, 2020 @11:00AM (#24244567)
Can you link us to where we can contribute?
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by spenczar5 on Saturday August 22, 2020 @11:57AM (#24244955)
Another place: you could get in touch with the folks at ALeRCE (http://alerce.science/). They publish access to a live stream of data from the ZTF project. We found the closest asteroid ever 4 days ago from the ZTF data stream: https://www.caltech.edu/about/news/ztf-finds-closest-known-a...
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by sandworm101 on Saturday August 22, 2020 @11:06AM (#24244602)
https://panstarrs.stsci.edu/

The data is there. Have at it.

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by eternalban on Saturday August 22, 2020 @12:21PM (#24245135)
Perfect task for AI.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by pc86 on Saturday August 22, 2020 @02:48PM (#24246265)
Given this comment, I'm not sure you know what "AI" or "perfect" mean.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by pavel_lishin on Saturday August 22, 2020 @03:18PM (#24246524)
You know what, maybe if we put this data on the blockchain, the ICO can pay for future investment to democratize astronomical research ok, I can't keep typing this out, I can't tell if I'm making myself laugh or cry.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by eternalban on Saturday August 22, 2020 @03:38PM (#24246686)
Thank you for sharing that. Are you sure you know what "not sure" means?
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by edgyquant on Saturday August 22, 2020 @03:29PM (#24246616)
Why would this not be a good domain for image recognition?
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by doytch on Saturday August 22, 2020 @05:01PM (#24247223)
If you’re trying to classify images as whether or not they contain something, you need a bunch of images that you already know don’t contain the thing (got it), and a bunch of images that you already know /do/ contain the thing. We lack the latter, so there’s nothing for the algorithm to learn based on.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by microtherion on Saturday August 22, 2020 @06:20PM (#24247727)
But this is not the only way you can deploy machine learning techniques. You could deploy unsupervised learning to first learn what visual features are common in such images, and then successively refine until you end up with a set of images containing very rare phenomena. That could give human evaluators then a considerable head start.

In fact, this idea seems so obvious that it must have been tried already…

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by edgyquant on Saturday August 22, 2020 @07:13PM (#24248056)
Has it? I'm very interested in using data science for astronomy as it was my childhood passion and I'd love to read anything you can provide.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by microtherion on Sunday August 23, 2020 @06:48AM (#24251008)
I'm sorry, this was pure speculation on my part, I don't have actual knowledge of this happening.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by edgyquant on Saturday August 22, 2020 @05:53PM (#24247564)
Oh I see I assumed the GP was talking about after such a dataset I agree you likely couldn't bootstrap without a lot of data but couldn't you use more classic approaches to extract data and then train a model (obviously once you know the extraction process is fool proof?)
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by ddingus on Saturday August 22, 2020 @10:50AM (#24244496)
What is used, and how long does doing that take?
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by marcusverus on Saturday August 22, 2020 @03:08PM (#24246446)
Given a budget of, say, $9.66 Billion, I'd say it would take around 25 years.

https://en.wikipedia.org/wiki/James_Webb_Space_Telescope

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by AlexCoventry on Saturday August 22, 2020 @10:55AM (#24244535)
I think it was sarcasm.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by duck2 on Saturday August 22, 2020 @11:11AM (#24244634)
Still interesting what would be used to polish a gold plated beryllium mirror. For instance, looks like they clean it by spraying CO2 snow: https://en.wikipedia.org/wiki/Carbon_dioxide_cleaning
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by ddingus on Saturday August 22, 2020 @12:54PM (#24245409)
Yeah, I took a gamble.

Just looked at the reference you dropped. Thanks, that is an interesting little rabbit hole.

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by petschge on Saturday August 22, 2020 @02:33PM (#24246160)
Be very careful grinding, polishing or otherwise ablating any alloy that contains beryllium. Berylliosis (no matter if acute or cronic) is no joke.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by spenczar5 on Saturday August 22, 2020 @11:52AM (#24244915)
Uh, the highest-funded terrestrial telescope project of the last 10 years has been the Rubin Observatory, which is intended to detect more interstellar objects (along with two other large goals - variability studies and galactic rotation curve studies to understand dark energy).

The effort spent arguing about Oumuamua is a tiny, microscopic fraction of grant money in astronomy.

(I work on software to detect interstellar objects)

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by misanthropian00 on Sunday August 23, 2020 @12:56AM (#24249619)
We can just build a ship to chase down Oumuamua and end this debate. If it is no longer where a natural object with a passive trajectory should be well we have our answer. If it is there we can take a close look.

THe fact that another interstellar object was discovered so quickly made me lose hope in the artifact or ship idea though. Part of the appeal was the idea that interstellar meteors were not really a thing, but apparently they are.

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by throwaway2019V on Saturday August 22, 2020 @10:52AM (#24244516)
Just like we're the only form of life that we've observed in the universe. The chances that the first result is also any sort of outlier are very slim. That's why with the decades of effort and sophisticated tools that we've employed, we've been able to find and study lifeforms on so many other planets.
Re:Mystery of interstellar visitor 'Oumuamua gets trickier by gfodor on Saturday August 22, 2020 @12:12PM (#24245067)
If we put half the energy we use detecting more interstellar objects to building interstellar spacecraft we'd be able to fly to one to find out what it is.

If we put half the energy we use building interstellar spacecraft on neural implants we'd not worry about flying somewhere else to satiate our desires.

If we put half the energy we use working on neural implants on creating affordable housing and food production we wouldn't have people chasing after dreams of perceptual bliss.

If we put half the energy we put into affordable housing and food production into figuring out what Oumuamua was, we'd discover aliens and they'd solve all our problems.

Re:Mystery of interstellar visitor 'Oumuamua gets trickier by vkou on Saturday August 22, 2020 @01:46PM (#24245782)
I don't think a few hundred million dollars a year is going to solve food production or affordable housing.