Photographing our own black hole

[NorthStar]

Three more links on this ...

? https://www.mnn.com/earth-matters/space/blogs/first-image-black-hole-almost-here

? https://interestingengineering.com/...round-supermassive-black-hole-at-galaxys-core

? https://medium.com/starts-with-a-ba...nt-have-an-image-of-a-black-hole-192ea94f97b7

While physicist astronomers are gathering data to get the first megapixel photograph of a black hole in our galaxy, here on Earth we are gravitationally adjusting our tonearm azimuth and cartridge tracking perfectly in sync with the music rotating @ the perfect pitch and speed.

This is not an April's first joke.

 

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The announcement will be streamed live on April 10 at 9am EDT here

 

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Another livestream site next Wednesday at https://www.nsf.gov/news/special_reports/blackholes/

NSF press conference on first result from Event Horizon Telescope project

A global network of telescopes has been working to capture the first ever image of a black hole. On April 10 at 9 a.m. EDT, the National Science Foundation will hold a press conference to announce a groundbreaking result.

 

[NorthStar]

It would be cool to witness Elon Musk's red Roadster being sucked in into that black hole.

 

[NorthStar]

I watched this earlier (educative):

 

[thomask]

I watched this video one month ago.

This one is an excellent introduction.



I have my own astronomy observatory in New Mexico.State, US.

After having spent enough time on audio hardware for the last 8 months,

I will try to take a beautiful shot of space later this year.

Thomas

 

[NorthStar]

We are approaching what could be an important historic moment in space, far far away.
Meanwhile ...

• https://www.sciencealert.com/feed-y...-image-of-the-dusty-donut-surrounding-one/amp

That reminds me of a 45 R.P.M. adaptor adapter.

Wednesday April 10, 2019 is "Black Hole Photo Day" (BHP Day).
• https://www.nytimes.com/2019/04/08/science/black-hole-photo.html

 

[NorthStar]

See, it does look like a 45 RPM adapter ...

? https://www.nytimes.com/2019/04/08/opinion/black-hole.html

 

[NorthStar]

Tomorrow morning, @ 9:00 AM ...

All this black hole photos stuff has my head spinning like a black album on a TT's platine.

 

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The black hole of the M87 galaxy in the Virgo cluster

 

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Sagittarius A*'s black hole will be next. A monumental day for astrophysics

 

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“This black hole is much bigger than the orbit of Neptune, and Neptune takes 200 years to go around the sun,” Geoffrey Crew, research scientist MIT’s Haystack Observatory said in a statement. “With the M87 black hole being so massive, an orbiting planet would go around it within a week and be traveling at close to the speed of light.”

 

[NorthStar]

It is amazing that we now have a picture (photograph) of a black hole.
You need a super good "zoom" camera lens (telescopes x 8 around the Earth) to take a snapshot of something that is over 26,000 light-years away, and another 55 million light years away!

? http://www.astronomy.com/news/2019/04/how-to-take-a-picture-of-a-black-hole

There is "a lot" of data and mathematics and adjustments and calculations and analysis behind this extremely complex task.

That final photo (ring of fire), reminds me of a solar eclipse, the ring from The Lord of the Rings (movie trilogy).
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? https://www.nationalgeographic.com/...led-m87-event-horizon-telescope-astrophysics/

? Slideshow:
https://www.nationalgeographic.com/...-astrophysics/#/01-black-hole-a-consensus.jpg

 

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100 years later, it is proven yet again how brilliant Einstein was:

Because the disc is rotating, it appears brighter where it is moving towards us, and dimmer where it is moving away. This effect was predicted by Einstein's theory of general relativity.

The image isn't high-enough resolution at this point to measure the rotation speed, but the EHT team, who watched the object for four days, could tell that it's rotating in a clockwise direction.

The image isn't super clear, so there are some effects that we may not be able to see - such as a relativistic effect called frame-dragging, which happens when the black hole is spinning. As it spins, because its gravity is so intense, it drags spacetime with it.

"That's been understood as an effect of general relativity for a very long time, but it only gets measurably large if you're really close to the event horizon of a black hole," theoretical astrophysicist Philip Hopkins of Caltech, who wasn't involved with the research, told ScienceAlert.

"Being able to image anything astrophysically at this kind of resolution is kind of mind-blowing."

There's another direct image that the EHT collaboration is currently working on, of Sagittarius A*, the black hole at the centre of the Milky Way - and it should be ready soon, according to the announcement we heard today.

Chandra X-ray Observatory close-up of the core of the M87 galaxy. (NASA/CXC/Villanova University/J. Neilsen)

 

[NorthStar]

When things get "shaky" on Earth it seems that's when man makes the biggest space science discoveries? Maybe not. Anyway it's a good thing that those two black holes are far far away.
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Yes, Einstein was right once again ...

 

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Fascinating press conference by the NSF

 

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A documentary will be broadcast on April 12th at 9pm EDT on the Smithsonian channel

 

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Another fascinating video of the people behind it

 

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And the longer version