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Old 22-01-2022, 09:24 PM
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astronobob (Bob)
Casual Cosmos Capturer

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Join Date: Jun 2010
Location: Gold Coast SE QLD
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Quote:
Originally Posted by Steffen View Post
Is that some kind of focussing mask on the bottom right?
A Bartinov Mask Steffen hehe,,

Pic attached showing names of each Filter in the Wheel - from Link 4 below

Fun Fact : JWST has an effective f/number of f/16.67, and an effective focal length of 131.4 m.

Have found some other interesting info on this Miri Filterwheel -->

1st; is an 'Animation' of the Light travelling through the MIRI Imaging System, quite remarkable,,,
https://www.youtube.com/watch?v=UfG5wqsM3Bk

2nd; YouTube showing the Filterwheel moving through its Positions 'Testing'
https://www.youtube.com/watch?v=fu7TH8FWmoc

3rd; PDF (Particularly Slides 4-8 showing some of the Corongraphic filters used,,
http://ircamera.as.arizona.edu/MIRI/...oronagraph.pdf

4th; MIRI Filters and Dispersers
https://jwst-docs.stsci.edu/jwst-mid...and-dispersers
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Last edited by astronobob; 22-01-2022 at 09:46 PM.
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