Event Horizon Telescope Releases First Evwr Image of Sagittarius A*

May 12, 2022 1:17 PM

Groundbreaking press release this morning that the Event Horizon Telescope has successfully imaged the supermassive black hole that resides at the heart of our own galaxy.

Huge congratulations to the EHT team for making 2022 the year for amazing space imagery.

Link:
https://www.space.com/event-horizon-telescope-milky-way-discovery-webcasts

EHT Website:
https://eventhorizontelescope.org/

astronomy

space

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Bah Gawd that's Sauron's music!

3 years ago | Likes 1 Dislikes 0

Amazing and heart-breaking at the same time what kind of collaboration humankind is capable of. Why not all the time? ?

3 years ago | Likes 5 Dislikes 0

Derek from Veritasium just released a great video about it https://youtu.be/Q1bSDnuIPbo

3 years ago | Likes 2 Dislikes 0

3 years ago | Likes 1 Dislikes 0

That's a donut.

3 years ago | Likes 1 Dislikes 0

IIRC this is like taking a photo of a 3 story apartment building in the UK from LA (if the Earth were invisible).

3 years ago | Likes 19 Dislikes 0

What's doubly impressive is this had to be imaged through the bulk of the galactic disc. That's a hell of a lot of signal to wade through.

3 years ago | Likes 11 Dislikes 0

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3 years ago (deleted Nov 28, 2022 6:52 PM) | Likes 0 Dislikes 0

3 years ago | Likes 5 Dislikes 0

Thank you for the clarification, it is appreciated.

3 years ago | Likes 6 Dislikes 0

Cool. This is the first pic of the black hole that is at the centre of the milky way. They first imaged a black hole in 2019 (diff galaxy)

3 years ago | Likes 5 Dislikes 1

M87 at 55 million light years away.

3 years ago | Likes 3 Dislikes 0

Which, I mean, is insane. So cool!

3 years ago | Likes 2 Dislikes 0

Totally. I’ll probably never set foot on another planet, but to see this is a good substitute! I hope there will be more pictures of it.

3 years ago | Likes 1 Dislikes 0

Is it supposed to be blurry? Serious question

3 years ago | Likes 5 Dislikes 1

The size/distance ratio is the same as if you took a photo of a donut on the surface of the moon from earth. So, quite impressive as is.

3 years ago | Likes 4 Dislikes 0

This is the sharpest picture they ever made. (I saw the live persco on YT this afternoon.)

3 years ago | Likes 2 Dislikes 0

Yes, to understand better how this came to be and what you see check some info on M87 the first black hole we took a pic from

3 years ago | Likes 2 Dislikes 0

It’s a long duration exposure but the accretion disk is whipping around the black hole at a significant fraction of light speed. So yes

3 years ago | Likes 5 Dislikes 0

¹So unlike Hubble or the JWST, the EHT isn't an optical telescope. It's a collection of radio telescopes across the earth that combine their

3 years ago | Likes 9 Dislikes 0

²data into a single cohesive "image." What you're seeing is intensity of the radio signal captured at a fairly low "resolution." It doesn't

3 years ago | Likes 9 Dislikes 0

³actually look like this if you could actually see it. Here's their site for a better description: https://eventhorizontelescope.org/

3 years ago | Likes 7 Dislikes 0

Sweet! Thanks!

3 years ago | Likes 1 Dislikes 0