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04-07-2022, 06:08 AM
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Registered User
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Join Date: Jul 2008
Location: Melbourne
Posts: 2,461
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Watch NASA Release the First James Webb Space Telescope Images
on July 12, NASA will be releasing the first full-fledged images taken by the James Webb Space Telescope.
The JWST team will hold a main event to unveil the telescope's images in real time on Tuesday, July 12, at 7:30 a.m. PT [Australia: July 13, 1:30 a.m. AEDT]
Link to watch the Event
https://youtu.be/21X5lGlDOfg
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04-07-2022, 05:59 PM
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Registered User
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Join Date: Mar 2020
Location: Syndey
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I'm unreasonably hyped for this, it makes me feel like a nerd and I love it.
Any idea if these will be just infrared images, or also infrared images colored in realistic colors?
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05-07-2022, 07:36 PM
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Mostly Harmless
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Join Date: Jul 2020
Location: Bathurst, NSW
Posts: 654
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Thanks for the link. I'm sure I'm not alone in wanting to see what the James Webb can do.
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07-07-2022, 08:31 AM
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Epick Crom
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Join Date: Jan 2021
Location: Perth
Posts: 393
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Thanks for the link Hans, like all of us I will be watching with deep anticipation. This is truly a golden age of Astronomy we are living in
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09-07-2022, 09:47 AM
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Join Date: Jul 2008
Location: Wollongong
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No doubt there would be a lot of people that are keenly awaiting the release of these first images, and subsequent releases. The list of images in the first release including Eta Carina as one of them will be eagerly anticipated. Wednesday morning can't come soon enough.
Thanks for the links.
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09-07-2022, 11:42 AM
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Join Date: Sep 2010
Posts: 2,100
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Carina
But I was hoping they'd keep the list to themselves. It would have been nicer to have been surprised.
that said, it's a nice range of targets. I am really interested in the planetary spectrum data. That will be fascinating...
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09-07-2022, 12:47 PM
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.....
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Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,976
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Quote:
Originally Posted by Spyrith
I'm unreasonably hyped for this, it makes me feel like a nerd and I love it.
Any idea if these will be just infrared images, or also infrared images colored in realistic colors?
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Well their sensor/s capture approximately 600nm and longer, so if they opt for natural colours it will be orange/reds/maybe some brownish tinges, otherwise if it's false colour, who knows?
Best
JA
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11-07-2022, 05:30 PM
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SpeakingB4Thinking
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Join Date: Apr 2019
Location: Canberra
Posts: 829
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Biden to release a JWT shot sooner!!!
Its like waiting for Christmas as a kid again!
Apparently the POTUS will have a picture release a full day prior to the NASA release. At 5pm Monday, Washington, DC time.(I think) NASA full release to follow on Tuesday at 10:30am as stated.
So, Tomorrow morning sometime after 7am!
"The image, known as "Webb's First Deep Field," will be the deepest and highest-resolution view of the universe ever captured, showing myriad galaxies as they appeared up to 13 billion years in the past, according to NASA."
Steve
"NASA will brief the president and the vice president on Monday, agency officials said, and the first image will be revealed at an event at 5 p.m. ET at the White House"
"After the White House event, NASA will unveil more images in an event streamed live Tuesday at 10:30 a.m. ET. NASA officials said that batch will include the Webb telescope’s first spectrum of an exoplanet, showing light emitted at different wavelengths from a planet in another star system."
*My understanding is that some of Tuesday pictures will be coloured according to the spectrum results.
Last edited by mura_gadi; 11-07-2022 at 09:10 PM.
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12-07-2022, 08:30 AM
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Join Date: Sep 2010
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12-07-2022, 08:57 AM
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SpeakingB4Thinking
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Join Date: Apr 2019
Location: Canberra
Posts: 829
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love the warped out sombrero galaxy...
The first shot shows the equivalent sky of a piece of sand on your finger tip held out at arms length.
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12-07-2022, 09:21 AM
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Join Date: Nov 2020
Location: PADSTOW
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Wonderful view. Gotta love the gravitational lensing effect!!
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12-07-2022, 10:09 AM
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Ebotec Alpeht Sicamb
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Join Date: Feb 2010
Location: Toongabbie, NSW
Posts: 1,965
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I find NASA’s description “Webb’s image covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground” a bit odd, TBH. What’s that in arc seconds, I wonder? Sand comes in all sorts of grain sizes, not to mention arms…
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12-07-2022, 10:25 AM
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Join Date: Mar 2015
Location: Melbourne
Posts: 1,495
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There's a lot of gravitational lensing going on. Other than that it looks a lot like. Hubble deep-field. Come to think of it, why do we see more lensing here than in the HDF?
Markus
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12-07-2022, 12:22 PM
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Join Date: Jan 2012
Location: Melbourne
Posts: 3,612
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Wow - what a great image.
It is hard to know how good it is unless compared with a previous image.
I assume these old images are from Hubble?
https://archive.stsci.edu/prepds/rel...cs0723-73.html
It's obviously much better than the images above.
I would like to know a lot more about it:
Which colours were mapped to which infrared wavelengths?
How many exposures?
What was the length of time of each exposure?
It's a pity that JWST uses a triple armed cradle to hold the secondary
as the six main diffraction spikes - and many more - it makes are annoying.
cheers
Allan
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12-07-2022, 12:32 PM
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Join Date: Apr 2007
Posts: 1,244
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My first thought was that the camera back focus was incorrectly set but the outer stars are good. See https://optcorp.com/blogs/deep-sky-i...%20the%20image.
Perhaps its the grain of sand in the image plane causing the strong lensing effect.
Lots of galaxies to see there! Well done, Webb!
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12-07-2022, 01:17 PM
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Join Date: Mar 2015
Location: Melbourne
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To answer my own question, I'm assuming this is a narrower and deeper field of view than the Hubble deep field. So galaxies are more closely aligned and the light is travelling farther with more opportunity to 'get bent' as it were.
Edit - just found out it's due to a foreground galaxy cluster, hence the radial pattern
Markus
Last edited by Stonius; 12-07-2022 at 03:57 PM.
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12-07-2022, 01:18 PM
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Registered User
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Join Date: Feb 2006
Location: Brisbane
Posts: 655
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Quote:
Originally Posted by alpal
Wow - what a great image.
I would like to know a lot more about it:
Which colours were mapped to which infrared wavelengths?
How many exposures?
What was the length of time of each exposure?
cheers
Allan
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You can see what colours were mapped to what filter here....
https://webbtelescope.org/contents/m...P5SZ?news=true
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12-07-2022, 01:42 PM
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Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,058
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Incredible image !
Looking forward to see many more images from the JWT
However at this early stage I still prefer observing that Hubble image from 2004, just something about it that gives you a wider perspective on the universe
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