OK it is really late here, but today's reveal of the first JWST image of the galaxy cluster SMACS-0723 was amazing, and I am still digesting it. There is so much stuff going on, it is absolutely breathtaking!
Just to get an idea of what an improvement this is over Hubble, over at The Robot Report, they show this beautiful side-by-side view of the previous best image taken with Hubble, and tonight's result. It's wild.
@TerryHancock No, RELICS is much newer, the IR images are taken with the WFC3/IR channel, in the filters F105W, F125W, F140W, and F160W. My guess is the image is some combination of (some of ) those.
These details should be in the press release. This is the entirety of what the damned thing says about wavelength:
"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."
I'm not mad. I'm just _disappointed_. 🤨
@TerryHancock I agree, but we should remember that today's preview briefing for the US president was just that, a preview briefing, seemingly planned quite hastily, so all that information might come out with the planned image release tomorrow.
Thanks for all the background info! I was digging through the project website and not turning up much (and maybe contradictory info?)