That’s just how the optics on a telescope work.
https://i.ibb.co/597xzxt/JWST-first-picture-ud.jpg
¡¡ … ʍǝᴉʌǝɹd ʎʞɐǝus ɐ s’ǝɹǝɥ … noʎ ɹoɟ ʇsnɾ 'ʞo
Yes but what is its two’s complement? 
That’s a very nice two @Folly saw there.
I don’t even see the code anymore. I see a blonde, a redhead…
That’s actually Arcturus and Rigel.
Meanwhile in the jungle…… NIRSpec is also good to go now, so that means that 16 out of 17 instrument modes are now ready for science. (Only NIRCam has 1 step yet to go)
Some links:
Countdown: How many minutes left? The official countdown is at Countdown to Webb's 1st Images Webb/NASA
Watch: See the images revealed in real-time and hear from experts about the exciting results on NASA TV at 10:30am Eastern on July 12: https://www.nasa.gov/nasalive
View: Just interested in the amazing imagery? You will be able to find the first images and spectra at: https://www.nasa.gov/webbfirstimages
Thank you for those links. They’ll be very useful on the Big Day, July 12!
me too, … but it turned out to be a “10”
There are 10 kinds of people in the world: Those who can read binary and those who can’t.
“It was just a dream, Bender. There’s no such thing as two”
Meanwhile - back at L2…
Only 1 Instrument Modes Check Out to go !
Just the NIRCam Coronagraphy left, and it’s very important because
without it there wouldn’t be any of whatever it is that it does.
That’s what I was waiting for!
Happy to oblige
‘How can I help it?’ he blubbered. ‘How can I help seeing what is in front of my eyes? 10 and 10 are 100.’
‘Sometimes, Winston. Sometimes they are 101. Sometimes they are 11. Sometimes they are all of them at once. You must try harder. It is not easy to become sane.’
Just a “bit” of noise in the data.
What images are we likely to see on the 12th? I ask so I can study up a little on the prior art.
I’m guessing one category would be very high redshift galaxies or quasars. They seem very much in JWST’s sweet spot as they are dim, small, and in the infrared.
One I’d love to see, but which we may not just yet, would be a “deep field”, where the telescope stares at an empty looking part of the sky. I love these. The idea that they’re just jam packed with the furthest galaxies we can imagine is exquisite. I suspect we may not see this yet because I get the impression they take a lot of observing time. OTOH, because the telescope isn’t rapidly dancing around Earth and its shadow, I guess they’d be easier to take than with Hubble, so maybe we will.
Likely another would be a planet forming disk, perhaps with a few planets, around another star.
I’m fond of images that resolve relatively nearby red giant stars, like Betelgeuse. Though, I guess big ground based telescopes are actually already better at this than JWST, so probably not.
What might we anticipate? I want to be a prepared attendee!
The Hubble Ultra Deep Field took just under 1 million seconds of observing time, or 11.6 days exposure. I doubt we’d get anything like that between now and July 12. Hell, just the data processing of such an image likely takes - at minimum - weeks of time.
I’m not sure if it is based on rumor or fact, so whatever grain of salt you want, but I heard (I seem to remember on Frasier Cain) that they had imaged the atmosphere of an exo-planet.
That’d be pretty cool. Even if there’s nothing interesting about that particular planet, just being able to do it at all is pretty awesome.
They have supposedly been able to do a spectroscopic analysis of the atmosphere of an exoplanet, which was one of the goals of the JWST. If true, and regardless of what this particular analysis turns up, it means they’ll be able to do it for many others, and thus giving us the best chance of detecting the signature of extraterrestrial life!