Talk:Herschel Space Observatory
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[edit] Focal length
The article lists the focal length as 27000 mm, which seems a little exessive (27 metres?). any idea where this number came from? I assume the correct value is 2.7m, but i cant find a source Modest Genius talk 23:07, 13 March 2006 (UTC)
[edit] Launch delay
Any ideas why the launch was delayed from 2007 -> 2008 ? --Salsa man 19:02, 17 December 2006 (UTC)
Broad variety of reasons: Problems with the mounting of the subreflector, problems with the initial design of the cryostat, many technical problems in details of all three instruments
[edit] Science goals
The statement that Herschel is only directed towards distant objects is wrong. There are large projects studying the atmospheres of planets in the solar system and on the warm interstellar medium within our Galaxy, i.e. of objects only a few hundred parsecs away.
[edit] Detector temperatures
Only SPIRE and PACS have detector temperatures below 2K. HIFI has a detector temperature between 2 and 3K.
