JWST latest Orion image

[alpal]

Hi Everyone,
I just saw the latest JWST image on CNN.
https://edition.cnn.com/2022/09/12/w...scn/index.html


I used other pictures to create a gif file.
see here:
https://i.ibb.co/9nLvyg0/Orion-Nebula-JWST-gif-file.gif

a comparison between JWST and Hubble with the Trapezium at the middle top.


cheers
Allan

[alpal]

Here's the best closeup I could find:


https://media2.spaceref.com/wp-conte...2520/ORION.png

[strongmanmike (Michael)]

Definitely a Tak Mewlon....

Mike

[alpal]

Originally Posted by strongmanmike

Definitely a Tak Mewlon....

Mike

Can we assume that many imagers will
change over to a 3 vane spider on their scopes
to get 6 diffraction spikes?



http://scopeviews.co.uk/TakMewlon180C.htm

[leon]

Wow, that is deep but I am not a fan of all those spiked stars, have to admit.

Leon

[strongmanmike (Michael)]

Originally Posted by alpal

Can we assume that many imagers will
change over to a 3 vane spider on their scopes
to get 6 diffraction spikes?



http://scopeviews.co.uk/TakMewlon180C.htm

Like HST introduced, or at least normalised, the now very popular wavelength ordered emission line look (yes, including magenta stars ), maybe Webb will make 6 diffraction spikes more cool?

Mike

[alpal]

Originally Posted by strongmanmike

Like HST introduced, or at least normalised, the now very popular wavelength ordered emission line look (yes, including magenta stars ), maybe Webb will make 6 diffraction spikes more cool?

Mike

Confess Mike -
you've already ordered your triple vane spider?



With the JWST -
Every one of those 18 mirrors is represented
and can be seen in each diffraction spike:
https://bigthink.com/wp-content/uplo...ZPX0AIB-Ho.png




from article here:
https://bigthink.com/starts-with-a-b...s-webb-spikes/




cheers
Allan

[alpal]

Juts having some thoughts about the JWST.


I wonder why the rocket which carries the mirror has to be a long cylinder?
If it had a nose cone more like the shape of an oblate spheroid, highly flattened then
it could conceivably hold a very large mirror.
It could have been large enough to hold a single mirror and not 18 hexagonal ones folded up.
That would have made the JWST mission much cheaper and
the diffraction spikes not so bad as we see now.
That idea would mean even larger mirrors could be sent into space.
Maybe aerodynamics and also the extreme G forces on a large mirror would make it impossible?


Allan

[Nikolas (Nik)]

Originally Posted by alpal

Juts having some thoughts about the JWST.


the extreme G forces on a large mirror would make it impossible?


Allan

That and also the weight