Starship Asterisk*

Ann wrote: ↑Mon Jul 01, 2024 5:50 pm

johnnydeep wrote: ↑Mon Jul 01, 2024 4:17 pm

Ann wrote: ↑Mon Jul 01, 2024 3:38 pm

Yeah, thanks... But thank you, Johnny, for working it out for me.

Ann

And quite coincidentally, I'm sure, 0.5° is almost exactly how "wide" the Moon appears in Earth's skies! (PS - I suspect Ann is not nearly so "math challenged" as she claims.)

Well, groan - I might have worked it out, but it would have required a lot of effort on my part, and it wouldn't give me that much satisfaction. Yes, some satisfaction, but not enough to be worth the effort.

And Johnny, as I'm writing this, you have 2997 posts. That number immediately rang an NGC bell with me, because NGC 2997 is a very handsome galaxy indeed! So here you are, Johnny, today NGC 2997 is yours - at least until you make another post!

NGC 2997, the 2997th entry in the NGC catalog and the number of Johnny's posts. Image credit: Adam Block/ChileScope

---

Ann

johnnydeep wrote: ↑Mon Jul 01, 2024 4:17 pm

Ann wrote: ↑Mon Jul 01, 2024 3:38 pm

Chris Peterson wrote: ↑Mon Jul 01, 2024 1:16 pm
Spoiler! I was giving our math challenged friend an opportunity to work that out.

Yeah, thanks... But thank you, Johnny, for working it out for me.

Ann

And quite coincidentally, I'm sure, 0.5° is almost exactly how "wide" the Moon appears in Earth's skies! (PS - I suspect Ann is not nearly so "math challenged" as she claims.)

johnnydeep wrote: ↑Mon Jul 01, 2024 4:17 pm

Ann wrote: ↑Mon Jul 01, 2024 3:38 pm

Chris Peterson wrote: ↑Mon Jul 01, 2024 1:16 pm
Spoiler! I was giving our math challenged friend an opportunity to work that out.

Yeah, thanks... But thank you, Johnny, for working it out for me.

Ann

And quite coincidentally, I'm sure, 0.5° is almost exactly how "wide" the Moon appears in Earth's skies! (PS - I suspect Ann is not nearly so "math challenged" as she claims.)

Ann wrote: ↑Mon Jul 01, 2024 3:38 pm

Chris Peterson wrote: ↑Mon Jul 01, 2024 1:16 pm

johnnydeep wrote: ↑Mon Jul 01, 2024 1:09 pm

About 0.5° apparently, so not much!

Spoiler! I was giving our math challenged friend an opportunity to work that out.

Yeah, thanks... But thank you, Johnny, for working it out for me.

Ann

Chris Peterson wrote: ↑Mon Jul 01, 2024 1:16 pm

johnnydeep wrote: ↑Mon Jul 01, 2024 1:09 pm

Chris Peterson wrote: ↑Mon Jul 01, 2024 12:59 pm

Well, yes, the Earth is rotating. But how much in just two minutes?

About 0.5° apparently, so not much!

Spoiler! I was giving our math challenged friend an opportunity to work that out.

johnnydeep wrote: ↑Mon Jul 01, 2024 1:09 pm

Chris Peterson wrote: ↑Mon Jul 01, 2024 12:59 pm

Ann wrote: ↑Mon Jul 01, 2024 6:19 am My computer was acting up yesterday, and I dislike using my mobile phone to comment on Starship Asterisk*, so I decided not to even try to comment. But I have a stupid amateur question. If the Earth was seen rising over the Moon, shouldn't the Earth also be seen to slowly rotate?

Well, yes, the Earth is rotating. But how much in just two minutes?

About 0.5° apparently, so not much!

Chris Peterson wrote: ↑Mon Jul 01, 2024 12:59 pm

Ann wrote: ↑Mon Jul 01, 2024 6:19 am My computer was acting up yesterday, and I dislike using my mobile phone to comment on Starship Asterisk*, so I decided not to even try to comment. But I have a stupid amateur question. If the Earth was seen rising over the Moon, shouldn't the Earth also be seen to slowly rotate?

Well, yes, the Earth is rotating. But how much in just two minutes?

Ann wrote: ↑Mon Jul 01, 2024 6:19 am My computer was acting up yesterday, and I dislike using my mobile phone to comment on Starship Asterisk*, so I decided not to even try to comment. But I have a stupid amateur question. If the Earth was seen rising over the Moon, shouldn't the Earth also be seen to slowly rotate?

Christian G. wrote: ↑Sun Jun 30, 2024 12:33 pm(but - oh the heresy! - the video cuts out the last chord of that Bach piece!) (which can also be heard on Voyager's Golden Record)

NateWhilk wrote: ↑Sun Jun 30, 2024 10:47 pm Not heresy, but MAJOR cringe! I think that would produce the same effect for ANY song on fans of that song's genre.

I assume that was accidental and a result of the Youtube upload process.

Christian G. wrote: ↑Sun Jun 30, 2024 12:33 pm(but - oh the heresy! - the video cuts out the last chord of that Bach piece!) (which can also be heard on Voyager's Golden Record)

Chris Peterson wrote: ↑Sun Jun 30, 2024 3:26 pm

shaileshs wrote: ↑Sun Jun 30, 2024 3:24 pm

shawnhcorey wrote: ↑Sun Jun 30, 2024 12:41 pm The Earth doesn't rise over the Moon unless the camera is moving. The video shows the camera as stationary. Bad video.

The Moon is tidal lock to the Earth. That means the Earth's position is fixed at the same azimuth and zenith. To get the Earth to rise, the camera must be moving toward the Earth.

I'm a bit confused. If Moon rotates and if Moon and Earth revolve around each other (relatively), there'd be an "Earth-rise and Earth-set" everyday on Moon. No ? What am I missing ?

From any given position on the Moon the position of the Earth in the sky is largely fixed (with some variation caused by libration).

Chris Peterson wrote: ↑Sun Jun 30, 2024 2:47 pm

AVAO wrote: ↑Sun Jun 30, 2024 2:42 pm

Syringa vulgaris wrote: ↑Sun Jun 30, 2024 1:30 pm

Come on now, give our "AI" overlords some room for mild hallucinations.

They had to generate quite a lot of frames in between shots to make it look smooth, and they had to interpolate the surface under the spacecraft for the illusion of flight over the Moon. It ain't half bad.

I'm curious how well one can do it in Celestia.

OK, that's right - in 2018, good craftsmanship and AI were probably not that advanced yet.

Unfortunately, the AI images of photorealistic pseudo-galaxies and colorful pseudo-nebulae, which have been generated thousands of times in social media today, lead to an unparalleled Babilonian image confusion. NASA unintentionally made its contribution to this with its false-color images - unfortunately.

The main thing is that we use AI and sort out the data garbage generated by AI!
...it should be mentioned in passing that both require huge amounts of energy and that the planet is going to the dogs thereby...

It should also be noted that "AI" as the term is usually used is merely a subcategory of Machine Learning, which is now essential to all branches of scientific research (including astronomy).

shaileshs wrote: ↑Sun Jun 30, 2024 3:24 pm

shawnhcorey wrote: ↑Sun Jun 30, 2024 12:41 pm The Earth doesn't rise over the Moon unless the camera is moving. The video shows the camera as stationary. Bad video.

The Moon is tidal lock to the Earth. That means the Earth's position is fixed at the same azimuth and zenith. To get the Earth to rise, the camera must be moving toward the Earth.

I'm a bit confused. If Moon rotates and if Moon and Earth revolve around each other (relatively), there'd be an "Earth-rise and Earth-set" everyday on Moon. No ? What am I missing ?

anally retentive wrote: ↑Sun Jun 30, 2024 3:19 pm

Chris Peterson wrote: ↑Sun Jun 30, 2024 2:47 pm
It should also be noted that "AI" as the term is usually used is merely a subcategory of Machine Learning, which is now essential to all branches of scientific research (including astronomy).

Technically, ML is a subcategory of AI, the one that used to be called "statistics" and is concerned with parameter estimation. It is a correct assessment that these days it is widely misused in all branches of scientific research.

shawnhcorey wrote: ↑Sun Jun 30, 2024 12:41 pm The Earth doesn't rise over the Moon unless the camera is moving. The video shows the camera as stationary. Bad video.

The Moon is tidal lock to the Earth. That means the Earth's position is fixed at the same azimuth and zenith. To get the Earth to rise, the camera must be moving toward the Earth.

Chris Peterson wrote: ↑Sun Jun 30, 2024 2:47 pm
It should also be noted that "AI" as the term is usually used is merely a subcategory of Machine Learning, which is now essential to all branches of scientific research (including astronomy).

AVAO wrote: ↑Sun Jun 30, 2024 2:42 pm

Syringa vulgaris wrote: ↑Sun Jun 30, 2024 1:30 pm

AVAO wrote: ↑Sun Jun 30, 2024 10:46 am Well, with all due respect to NASA Scientific Visualization Studio, the whole thing seems a bit synthetic to me.

Come on now, give our "AI" overlords some room for mild hallucinations.

They had to generate quite a lot of frames in between shots to make it look smooth, and they had to interpolate the surface under the spacecraft for the illusion of flight over the Moon. It ain't half bad.

I'm curious how well one can do it in Celestia.

OK, that's right - in 2018, good craftsmanship and AI were probably not that advanced yet.

Unfortunately, the AI images of photorealistic pseudo-galaxies and colorful pseudo-nebulae, which have been generated thousands of times in social media today, lead to an unparalleled Babilonian image confusion. NASA unintentionally made its contribution to this with its false-color images - unfortunately.

The main thing is that we use AI and sort out the data garbage generated by AI!
...it should be mentioned in passing that both require huge amounts of energy and that the planet is going to the dogs thereby...

Syringa vulgaris wrote: ↑Sun Jun 30, 2024 1:30 pm

AVAO wrote: ↑Sun Jun 30, 2024 10:46 am Well, with all due respect to NASA Scientific Visualization Studio, the whole thing seems a bit synthetic to me.

Come on now, give our "AI" overlords some room for mild hallucinations.

They had to generate quite a lot of frames in between shots to make it look smooth, and they had to interpolate the surface under the spacecraft for the illusion of flight over the Moon. It ain't half bad.

I'm curious how well one can do it in Celestia.

AVAO wrote: ↑Sun Jun 30, 2024 10:46 am Well, with all due respect to NASA Scientific Visualization Studio, the whole thing seems a bit synthetic to me.

shawnhcorey wrote: ↑Sun Jun 30, 2024 12:41 pm The Earth doesn't rise over the Moon unless the camera is moving. The video shows the camera as stationary. Bad video.

The Moon is tidal lock to the Earth. That means the Earth's position is fixed at the same azimuth and zenith. To get the Earth to rise, the camera must be moving toward the Earth.