The Carina Nebula is the most amazing photo. The level of detail now shown by JWST is breathtaking.
Compare Webb's Images to Hubble
161–170 of 254 posts
Re: Compare Webb's Images to Hubble
#162For the professional (or former professional) astronomers among us, I will make my somewhat amused observation that what people are most paying attention to is not really the distinguishing features of JWST. People seem most impressed by the apparent increase in resolution of the images, which is not from a certain point of view the hardest thing to do . HST might have done that if its instruments had been of differe…
Also, when comparing the deep field images I don't think it can be stressed enough the difference in exposure time between HST and JWST images (Hubble had a 10x longer exposure time). Many many more distant galaxies would become visible in the JWST image with the much longer exposure time. I look forward to seeing some long-exposure deep field images from JWST!
This is underappreciated. Much lamentation has been made of the fact that JWST's current mission length is only ten years (maybe twenty or thirty at best, but hard-limited by on-board coolant), but with the speed of its observations that ten years will be as productive as a century of Hubble time.
Re: Compare Webb's Images to Hubble
#163For the professional (or former professional) astronomers among us, I will make my somewhat amused observation that what people are most paying attention to is not really the distinguishing features of JWST. People seem most impressed by the apparent increase in resolution of the images, which is not from a certain point of view the hardest thing to do . HST might have done that if its instruments had been of differe…
.. and why is infra-red more useful ? Can we see through dust or something ?
Look how much more transparent the dust is in the carina image at the bottom:
Re: Compare Webb's Images to Hubble
#164For the professional (or former professional) astronomers among us, I will make my somewhat amused observation that what people are most paying attention to is not really the distinguishing features of JWST. People seem most impressed by the apparent increase in resolution of the images, which is not from a certain point of view the hardest thing to do . HST might have done that if its instruments had been of differe…
I'm impressed by the speed of the imaging. Apparently the Hubble Deep Field took over 10 days of telescope time while JWST did it in 12.5 hours.
Re: Compare Webb's Images to Hubble
#165Strange, when I compare the two images of Stephan's Quintet [1], it appears much more "progressed" in the new WEBB image [2]. But that should be impossible.
[1]: https://en.wikipedia.org/wiki/File:Stephan%27s_Quintet_Hubbl... [2]: https://johnedchristensen.github.io/WebbCompare/img/Stephans...
Re: Compare Webb's Images to Hubble
#166The Carina Nebula is the most amazing photo. The level of detail now shown by JWST is breathtaking.
I think so too. I even made another comparison website for it because OP's website doesn't use the full resolution images. Each image is about 50 MB so it will take awhile for it to load.
Re: Compare Webb's Images to Hubble
#167Now build a zoomable full-res version. Because I am spoiled and want the internet to do things for me.
I made a full-res version for the Carina Nebula. Not sure how to make it zoomable on desktop (it's zoomable on mobile).
Re: Compare Webb's Images to Hubble
#168For the professional (or former professional) astronomers among us, I will make my somewhat amused observation that what people are most paying attention to is not really the distinguishing features of JWST. People seem most impressed by the apparent increase in resolution of the images, which is not from a certain point of view the hardest thing to do . HST might have done that if its instruments had been of differe…
Well, also, one thing to note is that it took WEBB only hours to capture these images, while HUBBLE was aimed for days and months to capture comparable ones. It will be interesting to see the results when they have more time to capture longer sequences of light.
Re: Compare Webb's Images to Hubble
#169I'm actually most looking forward to seeing a picture of our planets. I wonder what kind of resolution we'll get of Jupiter and Mars in particular. Also curious about what the closest stars to our solar system would look like. Of course it also makes me wonder what would we be able to see given a 100x increase in aperture. Like for example if we could send up something extremely large on Starship. Would we be able to…
Imaging Phattie/IX would also be pretty cool. It's been a while since we've discovered a real big-boy planet.
Re: Compare Webb's Images to Hubble
#170what’s the practical application ?
Of astronomy?