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Talk:James Webb Space Telescope sunshield

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Cost

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If someone finds more information about the cost it would be interesting to include it. --Vasilis Theofylaktopoulos (talk) 14:37, 16 December 2021 (UTC)[reply]

This article should not be speedy deleted because its an important part of the JWST program and will be expanded. Patience... Fotaun (talk)

Hi@Fotaun: you must not remove the tag yourself. thank you. --Domdeparis (talk) 08:55, 7 December 2016 (UTC)[reply]

Awhile back this was tagged as being too technical, and while I personally tried to take some steps to make it easier to read hopefully in the future it can be "translated" so its more easy to understand. Fotaun (talk) 17:17, 20 January 2017 (UTC)[reply]

Much more readable now! Good job! Domdeparis (talk) 17:49, 20 January 2017 (UTC)[reply]

This reads like it was written by a 9 year old now. It's embarrassing and unencyclopaedic. 131.251.254.154 (talk) 15:55, 8 September 2017 (UTC)[reply]

Seriously, many people will be looking at this article closer to launch and it still has a lot of issues. At least the main article is really good. Shouldn't this information be consolidated into a subsection of the main JWST article? If it shouldn't be, this article still needs intense editing.

Evieliam (talk) 14:08, 2 March 2018 (UTC)[reply]

Some numbers are in error. The sunshield is 21m x 14m; its (diamond shaped) area is therefore about 150 squared meters. The given powers are incorrect as well. The solar constant is about 1.4 kW/m2, so "it will receive about ***200*** kilowatts of solar radiation". Reference [5] http://www.stsci.edu/jwst/overview/design/sunshield is a broken link. Check "will pass 23? milliwatts to the other side" as this number also seem in error. Marmetlouis (talk) 19:03, 15 May 2020 (UTC)[reply]

We need an explanation as to why the colour of the shield facing the sun is not silver but dark, if not black. I believe that this is because of the high emissivity of black and am assuming that the inside colour of the first sheet is silver, which having a low emissivity will not transmit heat to the second sheet. This is counterintuitive, most people would assume a reflective surface not an absorbing one. I don’t feel confident to write this up; I wonder if somebody else might articulate it better than I. Exnihil ^(talk) 21:48, 2 March 2022 (UTC)[reply]

I just wanted to give a commonplace suggestion for the "Timeline" section: 800,000 km (500,000 mi) instead of 0.8 million kilometers (500,000 mi). – Hamid Hassani (talk) 21:31, 27 September 2023 (UTC)[reply]