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MG Man
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Re: Astronomy

Postby MG Man » January 25th, 2022, 10:50 am

timelapse wrote:
Duane 3NE 2NR wrote:Lagrange points explained

Oh jeez, La Grange .Brings back terrible memories of University Maths and Stats.....



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Re: Astronomy

Postby maj. tom » July 6th, 2022, 3:31 pm

[[Bookmark]]


NASA will unveil the James Webb Space Telescope's 1st science photos this month.

NASA Live

(All times Eastern U.S. time, which equates to UTC-4.)

NEXT LIVE EVENTS
JULY
Tuesday, July 12
10:30 a.m. – Release of the first images from the James Webb Space Telescope
12 p.m. – Media briefing on James Webb Space Telescope's first images

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Re: Astronomy

Postby st7 » July 6th, 2022, 3:33 pm

maj. tom wrote:[[Bookmark]]


NASA will unveil the James Webb Space Telescope's 1st science photos this month.

NASA Live

(All times Eastern U.S. time, which equates to UTC-4.)

NEXT LIVE EVENTS
JULY
Tuesday, July 12
10:30 a.m. – Release of the first images from the James Webb Space Telescope
12 p.m. – Media briefing on James Webb Space Telescope's first images


ground control to maj tom...

we read you

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Re: Astronomy

Postby DMan7 » July 6th, 2022, 3:38 pm

Can't wait to see some alien life form out there.

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Re: Astronomy

Postby timelapse » July 6th, 2022, 7:38 pm

DMan7 wrote:Can't wait to see some alien life form out there.
What if it's Gonzo, or worse,the YipYips?

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Re: Astronomy

Postby DMan7 » July 6th, 2022, 7:45 pm

timelapse wrote:
DMan7 wrote:Can't wait to see some alien life form out there.
What if it's Gonzo, or worse,the YipYips?


Hopefully they come in peace.

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Re: Astronomy

Postby MG Man » July 7th, 2022, 8:10 am

unless other-worldly critters are travelling in self-contained space colonies, we're never gonna see any....interstellar distances are just too vast
More than likely, every species out there is just as limited to their local star system as we are

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Re: Astronomy

Postby MG Man » July 7th, 2022, 8:15 am


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Re: Astronomy

Postby aaron17 » July 7th, 2022, 8:16 am

Hope we see the bigger picture. Are we really the WHOS living in a snowflake ?

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Re: Astronomy

Postby timelapse » July 7th, 2022, 8:49 am

MG Man wrote:unless other-worldly critters are travelling in self-contained space colonies, we're never gonna see any....interstellar distances are just too vast
More than likely, every species out there is just as limited to their local star system as we are
Have they seen Uranus?

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Re: Astronomy

Postby maj. tom » July 7th, 2022, 10:01 am

July 6, 2022 - Webb’s Fine Guidance Sensor Provides a Preview


Webb’s Fine Guidance Sensor (FGS) primary purpose is to enable accurate science measurements and imaging with precision pointing. When it does capture imagery, the imagery is typically not kept.
The resulting engineering test image has some rough-around-the-edges qualities to it. It was not optimized to be a science observation; rather, the data was taken to test how well the telescope could stay locked onto a target, but it does hint at the power of the telescope.

The result – using 72 exposures over 32 hours – is among the deepest images of the universe ever taken, according to Webb scientists. When FGS’ aperture is open, it is not using color filters like the other science instruments – meaning it is impossible to study the age of the galaxies in this image with the rigor needed for scientific analysis. But even when capturing unplanned imagery during a test, FGS is capable of producing stunning views of the cosmos.

https://blogs.nasa.gov/webb/2022/07/06/webbs-fine-guidance-sensor-provides-a-preview


Image

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Re: Astronomy

Postby aaron17 » July 7th, 2022, 11:18 am

I thought they already taken a shot of a black hole.

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Re: Astronomy

Postby st7 » July 7th, 2022, 11:41 am

that picture is so amazing... geez.

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Re: Astronomy

Postby timelapse » July 7th, 2022, 12:18 pm

I could only imagine how bright that would be to the human eye.Instant blindness

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Re: Astronomy

Postby maj. tom » July 7th, 2022, 1:59 pm

aaron17 wrote:I thought they already taken a shot of a black hole.


Yeah.... but this has nothing to do with that. That was a picture of the black hole at the center of our own Milky Way Galaxy. This is a test image from calibrating the mirrors, a picture of deep, deep space, from light billions of years ago close to when the universe formed. It's not even close to the real processed image that NASA will show us on July 12th.

To put some context to this for you:
You know what is the Hubble Space Telescope? A big 2.4 meter mirror low orbiting Earth sent up in 1990. One day in 1995 they decided to point it at an apparently blank patch of sky, empty and uninteresting. They exposed that tiny patch of sky for 10 days to the camera. The patch is so small, it's the size of your thumbnail if you held it up in front of your face in the sky at arm's length.


And the image that came back changed everything. It showed how vast the universe really was, how many other galaxies were out there, how truly insignificant we are. Our own Milky way Galaxy, made of about 400 billion stars like our sun is just one and very insignificant speck of creation. And they repeated this with many random blank patches in the sky and each came back the same. Vast and innumerable in all directions. Every dot of light in that image is an entire galaxy!

Hubble Deep Field 1995
Image




So this JWST is a 6.5 meter mirror set very far away from Earth to minimize interference, which will see further and deeper into time than any instrument we ever had. Remember light travels at a finite speed so when you see an object 12 billion light years away, it took 12 billion years for that light to reach us, so we are looking back in time. Imagine what they will see with a 6.5 meter mirror telescope that was made to gather IR and compensate for the expanding red shift of the universe. This telescope will expand humanity's understanding of the deep universe and the origin of the universe so many times that we know now. So you see why scientists in that field are very enthusiastic about this, and even a layman like me can appreciate the true wonders of the universe... very exciting stuff.

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Re: Astronomy

Postby Duane 3NE 2NR » July 10th, 2022, 2:29 pm

Near-Earth asteroid Bennu is a rubble pile of rocks and boulders left over from the formation of the solar system. On October 20, 2020, NASA’s OSIRIS-REx spacecraft briefly touched down on Bennu and collected a sample for return to Earth. During this “TAG event,” the spacecraft’s arm sank far deeper into the asteroid than expected, confirming that Bennu’s surface is incredibly weak. Now, scientists have used data from OSIRIS-REx to revisit the TAG event and better understand how Bennu’s loose upper layers are held together.


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Re: Astronomy

Postby timelapse » July 10th, 2022, 8:44 pm

Duane 3NE 2NR wrote:Near-Earth asteroid Bennu is a rubble pile of rocks and boulders left over from the formation of the solar system. On October 20, 2020, NASA’s OSIRIS-REx spacecraft briefly touched down on Bennu and collected a sample for return to Earth. During this “TAG event,” the spacecraft’s arm sank far deeper into the asteroid than expected, confirming that Bennu’s surface is incredibly weak. Now, scientists have used data from OSIRIS-REx to revisit the TAG event and better understand how Bennu’s loose upper layers are held together.

https://youtu.be/XVNdQTc2qB8
This is the first thing that came to mind

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Re: Astronomy

Postby maj. tom » July 11th, 2022, 10:02 am

NASA announced that U.S. President Joe Biden will release one image today Monday 11-July-2022 at 5 p.m. ET.

The image, known as "Webb's First Deep Field," will be the deepest and highest-resolution infrared view of the universe ever captured, showing myriad galaxies as they appeared up to 13 billion years in the past, according to NASA.

The agency and its partners, the European Space Agency and the Canadian Space Agency, are set to release a separate batch of full-color images from the Webb telescope on Tuesday, but Biden, Vice President Kamala Harris and the public will get a sneak peek a day early.
https://www.nbcnews.com/science/space/first-james-webb-telescope-photo-unveiled-biden-rcna37549

____________________________________________________________________________________________

The James Webb Space Telescope (JWST), a joint mission between
NASA,
Canadian Space Agency (CSA)
European Space Agency (ESA),
will release several images — five at the very least — from peering through the darkness and the dust back to when the universe was in its infancy.

On Friday, the agencies announced their targets:

*SMACS 0723, a cluster of galaxies that distort the light of objects behind them allowing astronomers to see faint, distant galaxies behind them.
*WASP-96b, a giant gas planet that lies 1,150 light-years from Earth.
*The Southern Ring Nebula.
*Stephan's Quintet, a collection of five galaxies.
And one of the most magnificent nebulas in the night sky, the Carina Nebula.
https://go.nasa.gov/3ysrC73

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Re: Astronomy

Postby matr1x » July 11th, 2022, 11:07 am

There are local astrophotography members doing amazing work

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Re: Astronomy

Postby bluefete » July 11th, 2022, 12:20 pm

timelapse wrote:I could only imagine how bright that would be to the human eye.Instant blindness


No blindness at all. Picture taken in infrared light.

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Re: Astronomy

Postby Duane 3NE 2NR » July 11th, 2022, 12:21 pm

How to watch NASA reveal the first images from the James Webb Space Telescope
A new era of science begins this week

Today and tomorrow, NASA is releasing the first full-color images taken by the agency’s mighty James Webb Space Telescope, the largest and most powerful observatory ever sent into space. It’s a major moment for the telescope, signaling the beginning of scientific operations for the mission that could fundamentally transform astrophysics and our understanding of the Universe.

For weeks now, NASA had been planning to release the images all together on the morning of July 12th, but over the weekend, the agency surprised everyone by adding a last-minute White House briefing on July 11th at 5PM ET. Now, President Joe Biden will reveal one of the images first this afternoon, with NASA administrator Bill Nelson providing remarks.

NASA has planned a series of briefings on July 12th to roll out the rest of the images. First, at 9:45AM ET, there will be opening remarks by leadership at NASA and the JWST team. Then, at 10:30AM ET, NASA should reveal the remaining images during a live broadcast, which will be followed by a media press conference at NASA’s Goddard Space Flight Center at 12:30PM ET. It’s going to be a jam-packed day of content, but if you’re looking to just see the remaining images, 10:30AM ET is the time to tune in.

https://www.theverge.com/2022/7/11/2319 ... w-to-watch

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Re: Astronomy

Postby timelapse » July 11th, 2022, 1:38 pm

bluefete wrote:
timelapse wrote:I could only imagine how bright that would be to the human eye.Instant blindness


No blindness at all. Picture taken in infrared light.
I know that.That was my imagination running wild

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Re: Astronomy

Postby bluefete » July 11th, 2022, 1:59 pm

timelapse wrote:
bluefete wrote:
timelapse wrote:I could only imagine how bright that would be to the human eye.Instant blindness


No blindness at all. Picture taken in infrared light.
I know that. That was my imagination running wild


Well it really ran wild. :P :P :P

It would be great if we could see these galaxies with the naked eye but we are not so designed.

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Re: Astronomy

Postby maj. tom » July 11th, 2022, 6:23 pm

The size of this image is a grain of sand on a fingernail held at arm's length up to the sky.

Image

https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-delivers-deepest-infrared-image-of-universe-yet
NASA’s James Webb Space Telescope has produced the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail.

Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground.

This deep field, taken by Webb’s Near-Infrared Camera (NIRCam), is a composite made from images at different wavelengths, totaling 12.5 hours – achieving depths at infrared wavelengths beyond the Hubble Space Telescope’s deepest fields, which took weeks.

The image shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying much more distant galaxies behind it. Webb’s NIRCam has brought those distant galaxies into sharp focus – they have tiny, faint structures that have never been seen before, including star clusters and diffuse features. Researchers will soon begin to learn more about the galaxies’ masses, ages, histories, and compositions, as Webb seeks the earliest galaxies in the universe.

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Re: Astronomy

Postby DMan7 » July 11th, 2022, 6:27 pm

Looks like a spaceship battle taking place there. NASA did a bad job hiding the aliens this time.

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Re: Astronomy

Postby st7 » July 11th, 2022, 6:49 pm

4.6 billion years ago? the guy presenting in the media briefing said 13 billion. i wonder who right.

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Re: Astronomy

Postby maj. tom » July 11th, 2022, 6:54 pm

Galaxy cluster SMACS 0723 is (was) 4.6 billion light years away. That's the image with the huge gravitational lensing in the center that they presented today.

He said that the JWST can see as far back as 13 billion years ago.

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Re: Astronomy

Postby Duane 3NE 2NR » July 11th, 2022, 8:31 pm


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Re: Astronomy

Postby st7 » July 11th, 2022, 9:15 pm

maj. tom wrote:Galaxy cluster SMACS 0723 is (was) 4.6 billion light years away. That's the image with the huge gravitational lensing in the center that they presented today.

He said that the JWST can see as far back as 13 billion years ago.


ohhhh

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Re: Astronomy

Postby st7 » July 12th, 2022, 12:18 pm


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