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.
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.
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
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.